Turboing a 7M-GE?

[90supra n/a-t]

I just finished putting a CT-26 on my 90 n/a, I took the exhaust manifonld, turbo, gaskets, downpipe, intercooler, oil filter relocater, oil cooler, etc. etc. etc. Off an 87 supra that i got for $200 at and impound lot. I made my own oil lines/anti-freeze lines, It took about two weeks and about $40 more dollars in miscelaneous stuff. I Ported and polished the turbo, manifold and dowbpipe elbow before putting it on my car, I also retorqued the head for the turbo as well. Yes my car is fast but it seems like something is wrong, The Idle got mest up and fluctuates and it feels like my car is slower than it was when it was n/a until the boost kicks in then I just fly down the road.:rolleyes: Could someone please help shine some light on my situation. Also I was considering doing an engine swap, I was going to just put a new 7m-gte in their but my friend told me I should see about fitting a 2jz-tt in but I don't know how that would fit, I tried looking but all i found was 1jz-tt, i have never heard of this motor before this, Whats on this motor how much stock horses does it put out, Does it drop right into a mk-III supra, or do you have to make custom engine mounts? Someone please help. Thanx:D

[Thermactor]

Try tightening your AFM spring screw thingy.

[90supra n/a-t]

I looked at my AFM and I relized that it wasn't working properly, It would shock you if you touched it, So I put a ground strip on it and that worked wonders on my engine, its faster reving and doesn't fluctuate idle and is a ton faster, definitely fixed the air-fuel ratio. Very Pleased, thanx again for the suggestion but does anybody still know about the 1jztt engines and everything you have to change. Also please post any comments or questions or any suggestions you may have for me thanx. A picture is available upon request if you would like to see it?

[Thermactor]

Yes please, I'd love to see the pictures. I also want to know what you have done to make it work!
Did you just take an exh manifold, a turbo, an intercooler, and the intercooler piping, and rig up oil and water lines? Or did you have to muck with timing, electronics, and fuel, too?

Thanks!
Oh, there's a 1JZ-GTE FAQ at the top of the MkIII section, but many of us are far more interested in a turboed 7M-GE!
Thanks again.

[90supra n/a-t]

I didn't muck with any of the timing, I did have to change some of the wiring and had to have an aftermarket boost gauge. I did change the fuel injectors and had to move the Throttle Position Sensor a little. I also did Retorque the head to 72 ft-lbs and adjusted the valves. I left the distribitor cap and rotor though. I will post the pictures ASAP, It might be tommorow though. Also what kind of things can I do to increase boost pressure, My friend has a Talon and he waws going to sell me his boost controller but it won't work on our setup we got. Do they make boost controllers for our setups? Thanx

[supraboy1]

how much boost are you running? was it that simple?!?!? i was wondering why brysta had to do a ton of things and you didn't. maybe he is running more boost. keep us informed on how it runs!!!! props also... pm me with all you have done. the parts you named are easy for me to get to,so just pm.

are you on the 7mge computer???

[John Carnes]

Any engine can run 30 psi of boost ..... once :D

He must be running low boost, a GE ECU will have too aggressive of timing curve and will blow at anything above 6 or 7 psi. You're just asking for it if you're not doing ignition control. Raising the boost on high compression is not advisable.

[TD42T]

My NA-T was running 10psi but on 98octane with a booster.
Also I ran it fairly rich.
New setup will run 15psi.


Marty

[90supra n/a-t]

Right now im only running on stock boost pressures, I planned on turning it up cause it seemed to be doing good. But now I want to know more about what your saying with ignition control, what is it and how would I fix it? Where do your guys turbos spool at, mine starts at about 2800 RPM and reaches full boost at 3500 with no K&N or anything, I was just curious about stock and how low you can get it too.

[Mikael Hartmann]

I am going to put a CT26 on my 7mge, and I would like to know:
What have you don with your Head gasket? Nothing?
Could you send me a picture of your engine, where I can see the oil/water pipes? Thanks! My e-mail:hartmand@tiscali.dk

[slowyoda89]

Ok
1st -High compression and a turbo is a good thing.

2nd-No need for ignition control,Good idea when you get a chance.Get the turbo ngk spark plugs gap them to 29,make sure the timing is set to to the turbos,or just pull back 2 degrees.

3rd-Get an ignition with a boost retard(300 bucks)and a apexi
s afc.The s afc should be the first then the ignition.

4th-Only 93 pump gas should go in that gas tank,When at the track ,if you pull the timing back 2 degrees ,advance it 2 degrees back to stock and run some race gas.You really dont have to pull back the timing,but on race gas that timing will help you out in 1/4 mile times.

5th-I wouldnt go any higher then 11 or 12 psi.

[slowyoda89]

Well msd boost retard ignitions systems have a little timing controller that goes in the the car ,which you can mount near the steering wheel.It can be adjusted to pull timing out in 1 degree incerments when boost comes on.Really dont worry about it till you have some money to get it

[BrysonK]

http://bkriz.mkiiisurpa.com

[Mikael Hartmann]

Hello.
I have been asking this before: Can´t anyone send me some pictures of an 7mge with a ct26 turbo. I would like to see where oil and water to the turbo is connected.
Also homepage adresses would be nice!
Thanks. Mikael from Denmark. E-mail: hartmand@tiscali.dk

[pumpkins01]

so are turboing n/a's stonger then factory turbo's or what?? which one is better or are they the same

[BrysonK]

In theory, the NA block should be a bit weaker for this situation due to no oil squirters on the pistons, something to do with the pistons, and the higher compression.

[a70]

Originally posted by pumpkins01
so are turboing n/a's stonger then factory turbo's or what?? which one is better or are they the same

lol no, did you read it says it cant handle over 7 lbs of boost

[BrysonK]

Originally posted by John Carnes

He must be running low boost, a GE ECU will have too aggressive of timing curve and will blow at anything above 6 or 7 psi.

If you do the conversion, you should be using the GTE electronics, which include the GTE ECU, which will have the right fuel maps and ignition maps for a boosting application.

[Jasce]

Hi guys,
I've run out of power and am looking into turning to boost for more ponies..

My first option is whacking a turbo onto my N/A motor.

What I am looking for is information on turbo'ing a N/A (7M-GE)
NOT dropping in a GTE.
Some time back I found a very good site with a fairly precise how to for a GE to GTE conversion, but I can't find it now.

So.. does anyone have a walk through on how to do it? know any informative sites? I've done a search (or three!) through the forums but I have yet to come up with anything particularly useful or complete..

With this information I can then accurately asses which option (N/A-T or GTE conversion) is the most financially viable..

Thanks..

[BrysonK]

I've heard that this guy did the swap sucessfully:

http://bkriz.mkiiisupra.com

Just a wild guess ;)

[Jasce]

Subtle! *GRIN!*
*off to rummage through your site!*

Thanks!!

[jong]

hahahahahha

[Jasce]

Ok, So I've found a mostly complete 89 GTE that I can get the parts off but I have a few Q's..

Is there any problem with useing the ECU from and auto on a manual. (rumor has it that this is ok, but not a man ecu on an auto)

And does the ECU have to come from the same year model? and if so is the 89 wireing loom compatable with the 87 ecu?

[Jasce]

I need to get the straight of this.. The ECU has to be from the same year as the motor right? I.e Motor, ECU and loom from an '89 and an '87 car is ok... ?????

I have an '87 Supra, the motor I might get is from a '89..

[makenzie71]

Nope...you gotta use all the electronics from the 87. Other wise you'll have to pull almost every wiring harness out of the 87 (to convert it (to my understanding I may be wrong). If you're just going for a true NA-T conversion then this is really all you should have to do...I been putting lots of research intot this lately:

First you really should pull the head and replace the HG with a metal one (2.0 mm or slightly larger to make an attempt to counter the high compression) and replace the head bolts as well. After this reinstall the head. From here you'll need a turbo intake manifold (not really...just depends on how crafty you are and how much patience you got...I will be using the NA manifold and assembly) and the exhaust manifold. Slap the turbo on and plumb it in. I have figured that an IC isn't necessary but is very beneficial. Typical turbo stuff should be included...if you're using a stock Supra header and turbo then a wastegate is a concern but a blow-off valve is needed to be plumbed in. You will definitely want a boost controller of somekind...it is very important that you do not push more than 6lbs on the 7MGE without slightly larger fuel injectors (my research points out that 440s are good to slightly over 300hp...but if I'm not mistaken the N/A has 440s don't they?).

It's pretty much a slap it on and go kinna project if you have all the pieces it wouldn't even really take all that long...but you have to practice some control with it...compression is higher on the GE so less boost is needed. You should also be prepared to break your engine and get a new one.

[BrysonK]

bzzzzzz N/A does not have 440 injectors, somewhere in the 300 range. If you want to do it, do it right and SWAP over all the electronics so the ECU knows whats going on. Why punish the little N/A injectors while the 440's are a dime/dozen?

If my 440's weren't practically free, i'd probably have gone to 550's, which i will do in the future. And YES use an intercooler...

If you go Turbo intake manifold, go with the valve covers too. It is very possible to have the NA intake, valve covers, and still fit the coil pack in there. Check my site for more photos!

Thanks
BK

[Thermactor]

Originally posted by Brysta89
bzzzzzz N/A does not have 440 injectors, somewhere in the 300 range. 295/315, same injector, depends on how toyota set up the fuel pressure on the respective n/a car.
just thought that i'd one-up ya, bryson.


oh yeah, and don't bother with an intercooler, and stock n/a 440cc injectors are sweeett! and the flapper air flow meter works better with a turbo than it does with the n/a, go figure! the 7M-GE was made to boost 15psi from the factory. and 7m-ge's don't blow head gaskets, only 7M-GTEs do. And our ct-26 turbos don't need oiling or water cooling, they're sealed bearing for extra long life. if you wanna rev to 7000 rpm on a stock 7m-ge, make sure you're running a fram oil filter and pennzoil oil because they'll keep the oil running smooth at those speeds. make sure you disconnect the throttle position sensor, it's an electronic hindrance when you go turbo
lets show those arrogant 7M-GTE fuckers how smart we really are! N/A-T POWER! 7M-GE TO THE MAXXXX!!

[makenzie71]

uhhh...yeah...that didn't serve any purpose....

[Thermactor]

Originally posted by makenzie71
uhhh...yeah...that didn't serve any purpose.... dude I gotta hook up my n/a brothers. FUCK THE GTE!

[makenzie71]

rofl...such a crappy engine

[Gruvi]

Thermactor, dude, what's you real name(you introduced yourself to me as Hadi...muslim?) and why the tough guy image in the forums. I met you in person so I know what I've seen. Not a convincing tough persona whatsoever. More like a little lost kid. When all is said and done put your n/a on the track or come over to PA and I'll show you what your n/a power isn't. BTW thanks for the hks mhg deal. Rebuild is half done and the hks is going to compliment the new arp studs and 25psi

[Jasce]

ok.. Now I'm really confused!
It sounds like I can't do a drop in GTE without putting in EVERYTHING (which I wouldn't have in this case) 'cos the '87 never came out as a turbo (88-92 only.. well at least in Oz)

So that leaves strapping some of the GTE bits (mainfolds, injectors and under-bonnet ignition gear) on my GE, running low boost (which i'm fine with for now) and waiting for it to blow, which i'm also fine with :)

The long and the short of this is that I have no intention of getting rid of my aero-top for a hardtop turbo.. mine is the only aero that anyone here knows off so It's going to be impossible to find another turbo version... and as I'm sure you all feel the same way about your MKIII's.. IT'S MINE! :>

So which is it? how do I proceed? given that my Supe is a '87 and the motor I have access to is a '89.. and that I want boost!

Thanks very much for your input guys!

Jasce..

[Mikael Hartmann]

Anyone who has some pictures af their NA/T engine?
Let´s see them!!!

[Interex_87]

Originally posted by Mikael Hartmann
Anyone who has some pictures af their NA/T engine?
Let´s see them!!!


1989 Toyota Supra 7M-GE/T in the works - Check out my NA - T site at http://bkriz.mkiiisupra.com !

[89SupraN/A]

only good thing bout turboing a high compression engine is little turbo lag. but the highest boost is bout 10psi. depends on compression ratio.

if i was going to turbo my 7M-GE, the engine would be fully rebuilt with turbo pistons and all the turbo stuff. but why bother? why would i spent money on rebuilding my GE, when i can find a GTE in a junk yard complete for bout $300 and build that up. thats means i have everything, ECU, harness, etc. plus the engine would be fully rebuilt

[fred794]

Originally posted by 89SupraN/A
why would i spent money on rebuilding my GE, when i can find a GTE in a junk yard complete for bout $300 and build that up. thats means i have everything, ECU, harness, etc. plus the engine would be fully rebuilt
Where is this junk yard? All the ones where I live want $1200 just for the engine. Also did you upgrade the clutch on your N/A-t and if so what kind are you using?

[Mikael Hartmann]

The information about disconecting the tps, is not right!
If you do so, your engine wont run!

[Mikael Hartmann]

Let´s see some NA-T pictures, please!!!
All this talk, no pictures????

[BrysonK]

WTF is wrong with you? Do you even read the posts or just say "gimmie gimmie gimmie!"?

Interex_87 was kind enough to give you the link on a silver platter of a site with tones of pictures of EXACTLY of what your looking for, and you have to post again saying "All this talk, no pictures????"

Jeez :rolleyes:

[porn-adkt]

Originally posted by Mikael Hartmann
Let´s see some NA-T pictures, please!!!
All this talk, no pictures????

do you even bother using the search button.

do some research. most of it is there, and if not then you should ask questions.

:mad:

[matacemat]

Maybe he can't read well, and only pictures work for the poor fellow. Maybe they can't get phonics in Denmark. hehe. matt

[TD42T]

Mikael
Don't know where in this thread you got the TPS bit from but I did post in another thread that my car runs and drives quite well with no TPS,allthough it idles high and runs rich down low.
Before you start stating a fact try it ,do not assume it.
Also there is links in that other thread to plenty of pics of my engine so you should find them with ease.

marty

[89SupraN/A]

my car is still N/A. previous post is what i would do. besides, i know where a 7M-GTE with a rod knock still in car... not sure if its still there tho.

[Mikael Hartmann]

Can´t find any 7MGE turbo engine pictures? anyone???
Let´s see them!

[BrysonK]

WHAT THE FUCK IS WRONG WITH YOU?

Maybe namecalling is the only way in order you'll read our threads. This is the 3rd time now we've given you a link to a page with tones of photos of the 7M-GE turbo'd, and you just post again "Can´t find any 7MGE turbo engine pictures? anyone???
Let´s see them!"



:twak:

[TD42T]

I'll post the links here as well so he can't miss them.

First link has some pics of the oil lines(not very good though)and the water lines aleady exist on the GE they just need rerouting.
Sound simple enough?
http://www.supraforums.com/showthread.php?s=&threadid=96227
Alot more pics here and a little desciption of what I have done
http://forums.supratt.tk/index.php?t=msg&th=97&start=0&rid=26&S=2b0c68afdd9d2e44f0d0a7d51c4949ea

Marty

[Mikael Hartmann]

let´s see some 7mge turbo pictures!

[porn-adkt]

Originally posted by Mikael Hartmann
let´s see some 7mge turbo pictures!

I see now that your a Fucking Clown and probably doing this on purpose.:fawk: :fawk: :fawk:

[Mikael Hartmann]

where are the 7MGE turbo pictures????

[TD42T]

Ha Ha.
What do the links above take you to, a bowl of goldfish?????

marty

[ZaZZn]

busta I just wanted to say.> damn mn you're one of the nicest rides out there.. I drool when I see you're work :)


Good work.. BTW have you dynoed yet? I am fairly confident if you retard base timing to say 10 ish area (I believe its 12) not sure for na though and then jack that boost up you'll get a nice increase I don't really see a problem of running 15 psi on a na engine I've actually heard it quite alot (not on the forums)


Should be 3xx ponies at that psi lvl with a na engine.

[88hkssupra]

This car was turboed in 1991, with all HKS performance parts. It currently has 36,000 miles and is in show room condition. Approaching 400 at the wheels. NA electronics with HKS F-CON and list of additional mods is extremely lengthy. No problems, car runs spectacular. It spanked a 12 second buick grand national last summer.

Here is a link to my yahoo photo page. The burgandy Supra is the NA-T.

http://photos.yahoo.com/bc/stompastang425/lst?.dir=/My+Photos/Carlisle+02&.src=ph&.view=

[Thermactor]

hkssupra: can you please, please, pretty please, list all the mods?

thanks :)

[a70]

let´s see some 7mge turbo pictures!

[a70]

Originally posted by ZaZZn
busta I just wanted to say.> damn mn you're one of the nicest rides out there.. I drool when I see you're work :)


busta bust flip mode squad

[Roger UK]

Trying to make sense of all the technical stuff on all the posts on this thread . . . . just wondering how simply this could be done (as there seem to be conflicting comments on here)

I have a recently fully re-conditioned N/A engine in my 1991 Supra . . . . . bearing in mind that here in the UK you can easily buy a complete Turbo Supra for under $300 (with, say a BHG or big-end knock), how easy would it be to just bolt on all the intake and exhaust bits from the donor Turbo engine? My car already has an oil cooler . . .

I'm not after higher than standard boost . . so can this be done simply? With the standard turbo set-up on a good N/A engine, what kind of flywheel bhp are you likely to get? Is there any need to even replace the distributor with the turbo HT system (or is it in the way?)

Does the ECU & loom need replacing too for it to run properly? (I'm looking for minimum work/expense here - not looking for lots more power as don't want to change clutch/gearbox etc)
________________
1991 3.0i (N/A) Manual, Black Mica. Owned 6 yrs, Mint Bodywork, Daily Driver. Recent Engine Recon (rebored, crank ground, new oil & water pumps etc), New Rad & Catless Exhaust, EGR all removed, Inline PCV Filter (Photos at http://wessestandard xproductions.co.uk/supra )

[86SUPRA7mgte]

You'll need a fuel computer. You'll also need stock turbo injectors.
you can use the 7mge intake manifold. your looking at about 250 crank hp and 275 crank trq (estimating) depends ALOT on mods and boost level, timing, a/f ratio, ect ect

-Dave

[Roger UK]

So if I swapped all the external parts from the 7M-GTE, plus the injectors from it, and the ECU plus resistor pack for the injectors, would it run OK on stock or just slightly raised boost without having to buy any extra components, like fuel computer?

[Iceberg319]

^^^thats what im tryin to finish, thermactor has done that with sucess

[Afunk]

Yes, I have done it that way as well. Your car will essentially be like a turbo car, with the only exception being the compression ratio, knock sensors, oil squirters. and cams. So, if you have a question will it do this or that, just see what a turbo car would do, it should be about the same.

Edit: Also, you do NOT need to swap resistor packs for the injectors if your car is pre 89

[Roger UK]

That's what I figured . . . . . so I appreciate there may be potential problems due to the crank, etc, but at low boost levels hopefully that shouldn't be a problem.

What about the high compression of the N/A engine - what problems is that likely to cause? ie why did they reduce it on the stock Turbo versions?

[Afunk]

With the NA 9.2:1 compression ratio, turbocharging is not the greatest idea since it tends to be more risky. I think a few people slap on a fat headgasket to lower the compression ratio. I, however, and a few other people, including some turbo guys who purposely put in the high CR pistons from a NA, are running the 9.2:1 CR. This makes the car more powerful, expecially in terms of torque, but is much riskier. You must religiously monitor EGT's and A/F ratios as the a NA-T is much more prone to knocking. The crank's are the same, both turbo and NA, so I believe that is not a problem as they can hold as much as you throw at them (with the exception being that 7m rail car with 1000+ HP). If you are taking the engine out, I'd replace the headgasket now. If you're dumb like me, running the stock headgasket on a high CR turboed car is not an ideal situation. Also, at some point seriously think about investing in an oil filter relocation and oil cooler with thermostat setup. We already have the NA adapter on our cars, which is a requirement for all the setups I have seen.

Also, the reason they lowered the CR on turbo cars is for reliability and daily driving. Their CR is 8.4:1 so they do not need to worry about detonation as much as us.

[Roger UK]

I appreciate what you're saying . . . and I guess it's what I thought. But you've confirmed that it CAN work without problems.

To be honest, having had a full engine rebuild the last thing I'd want to do is take the head off . . . but at least I know all the pistons, crankshaft bearings, etc etc are all in good condition, which is why I'm at least considering this as a possibility.

As I say, you can buy a running Turbo car over here SO cheap, so if it's just a question of bolting external bits on my nice new 7M-GE from the donor 7M-GTE, I'm figuring it would be quite an easy/cheap job . . . . .

So is that about right, with just standard boost settings on the high-compression engine you'd probably get about 250 bhp at the flywheel ? (so about 10% more than a stock 7M-GTE)

So how much boost do YOU risk running with the high-compression engine?!

[Afunk]

Heh, I got almost all my GTE stuff from friends so I spent very little, around 300ish for all electronics, manifolds, intake, intercooler and piping, turbo, exhaust, two new rear Kumho Ecstasa Supras, and a rebuilt r154, maybe another 50 for the harness, which is 95% solder now...I'm current making a 3" mandrel bent exhaust so I can up the boost, but so far I've been running 5ish psi, with a boost leak. The car may not make much more HP but the torque is phenomenol in comparison with stock GTEs so the car really has more pickup than a stock GTE. If I were you, I would do as much quailty stuff as possible, like SS oil lines or at least aeroquip. I'm still in high school so my budget is tight; I used like, AC tubing and tractor oil cooler tubing for my oil lines. Although it is holding up fine and not getting hard or spongy, I would definaltely have more peace of mind if I splurged and spent 100 or so on SS lines.

I have ARP bolts and a used MHG ready for when I blow my stocker. I've retorqued it to like, 75 or something, but I know it will blow, it's just a matter of time.

[Roger UK]

Yes, even without the turbo I prefer the torque of the N/A . . . in fact the whole car is nicer to drive than a Turbo version - smoother gearbox, better steering response, & engine braking (due to the higher compression)

The only thing I don't like is that I have always felt the N/A is too highly geared. I have obtained a 3.73:1 diff and plan to fit that even if I don't go down the turbo route - someone over here has already fitted one to his N/A and says it's much better, as you stay in each gear longer so get better acceleration (and it will certainly reduce the revs for cruising at high speed . . it's ridiculous doing 120mph on the motorway at the moment!)

[Afunk]

Yeah, no joke. I take the highway for a little bit to see my girlfriend and the revs are at like 4100-4300 the whole time...it's ghey

[86SUPRA7mgte]

With the NA 9.2:1 compression ratio, turbocharging is not the greatest idea since it tends to be more risky. I think a few people slap on a fat headgasket to lower the compression ratio. I, however, and a few other people, including some turbo guys who purposely put in the high CR pistons from a NA, are running the 9.2:1 CR. This makes the car more powerful, expecially in terms of torque, but is much riskier. You must religiously monitor EGT's and A/F ratios as the a NA-T is much more prone to knocking. The crank's are the same, both turbo and NA, so I believe that is not a problem as they can hold as much as you throw at them (with the exception being that 7m rail car with 1000+ HP). If you are taking the engine out, I'd replace the headgasket now. If you're dumb like me, running the stock headgasket on a high CR turboed car is not an ideal situation. Also, at some point seriously think about investing in an oil filter relocation and oil cooler with thermostat setup. We already have the NA adapter on our cars, which is a requirement for all the setups I have seen.

Also, the reason they lowered the CR on turbo cars is for reliability and daily driving. Their CR is 8.4:1 so they do not need to worry about detonation as much as us.

You summed it up.
+1 to you:)

-Dave

[jong]

heh. i ran my 7mge-t for just over a year with the stock headgasket... at 11psi.. and when she blew, she really blew...

I've got 960miles on my new setup, which is basically the same, only with a cometic 1.2mm, milled head ( so compression might even be a tad higher), and a p/p head. Currently at 12psi, and -12*BTDC. I don't know what the heck the deal is with my SAFC, i've tried everything and it hates my flapper AFM. My afr's are currently around 12.5:1 across the rpm range.

oh, and about changing oil... without a relocator, its a HUGE PITA.

[Afunk]

heh. i ran my 7mge-t for just over a year with the stock headgasket... at 11psi.. and when she blew, she really blew...

I've got 960miles on my new setup, which is basically the same, only with a cometic 1.2mm, milled head ( so compression might even be a tad higher), and a p/p head. Currently at 12psi, and -12*BTDC. I don't know what the heck the deal is with my SAFC, i've tried everything and it hates my flapper AFM. My afr's are currently around 12.5:1 across the rpm range.

oh, and about changing oil... without a relocator, its a HUGE PITA.

Haha, I hear you on the oil change part...such a rudimentary task so fucking hard...except it's not unlike changing sparkplugs on most V8's, even the godly LS1...so I guess it's not that bad.

[86SUPRA7mgte]

Haha, I hear you on the oil change part...such a rudimentary task so fucking hard...except it's not unlike changing sparkplugs on most V8's, even the godly LS1...so I guess it's not that bad.

hmm..Wish I could relate, but on my 7mge-T whenever I'm changing the oil the car is in pieces anyways. Lol real easy to change the oil!!

-Dave

[Afunk]

Oh, and I have to use like, FRAM or some other shitty brand because good oil filters ones are too big to fit in the space between the adapter on the block and the intercooler pipe right off the turbo.

[Chris89]

I still have not found pictures of a boosted 7m-ge... I've been looking and all the links posted don't work.

[JT87NA]

I still have not found pictures of a boosted 7m-ge... I've been looking and all the links posted don't work.

1/2 NA-T PICS (http://photobucket.com/albums/v514/JTrue/)

Ignore some of the pics

[Chris89]

sweet. How are those vids/sound clips coming?

[Thermactor]

hmm..Wish I could relate, but on my 7mge-T whenever I'm changing the oil the car is in pieces anyways. Lol real easy to change the oil!!

-Dave
my oil change was 10 minutes, no effort, i have a relocation kit

[Thermactor]

I still have not found pictures of a boosted 7m-ge... I've been looking and all the links posted don't work.
http://www.thermactor.com/supra5.jpg
i've posted this picture so many times its a banality and it makes me cringe

[Afunk]

mmm...I like the PS relocations, except that it's lines run near the turbo? Any problems with it?

[Thermactor]

mmm...I like the PS relocations, except that it's lines run near the turbo? Any problems with it?
i actually bought a turbo PS reservoir and have used it in the stock turbo location since. Got sick of the rats nest of hoses going so close to the turbo. only problem i had with the na res back there was the fact that i initially used 5/8" heater hose which soaked through with oil after a few months. now i'm using flex-acol fuel hose and it's good.

whats next is for me to move the remote oil filter somewhere else too

[Keiko]

I would like someone who has a 7MGE with the 7MGTE coil to explain how they put it together. please list he parts needed example GTE coil pack, I'm thinking u may need a Cam angle sensor and some wiring let me know as soon as possible, anyone please.

[Afunk]

Cam Position Sensor, 7MGTE ignitor, and coilpacks, that's it, the CPS goes where the distributor used to go.

[Keiko]

thanks a million

[haltechmk3]

I did this for a customer of mine. The way we did it is bought a jdm 7mgte for $800 shipped from k.wantanabe . We added a npr intercooler and a stock turbo ecu for the same year, but it ended up being an auto ecu. No biggie, jumpered the big fat plug that supposed to run to the tranny for the nuetral start. Its as simple as wireing one wire from the plug into one other wire on same plug. Now the car will start and run fine.
I turboed a 7mge myself on my car, but i cheated and used a haltech FUEL only ecu along with the stock ignition. I ran 15 psi out of a stock na bottom end with a 57trim that made 362 whp on a lower compression turbo motor. So it fealt alot more powerfull because of the compression. The turbo hits harder and quicker with less boost. Drove like a huge v8 , lightly apply gas-total wheelspin. At 9psi it fealt as powerfull as my turbo setup now at 15psi. Truely amazing.
However, the compression of the na limits you to overall possibilities . At about 15psi the compression and heat is too much. Maybe with a strict diet of race gas , you could run it, but without, your asking for it- as the final compression on a na /t skyrockets.

You can get a cam pos sensor , gte ecu for SAME YEAR , all the turbo sensors , wire harness from ecu to engine for gte, and the fuel pump, and injector ballast. Its pretty much plug and play from there.You can change the intake manifold , youll have to change the valve covers- if you do that, unless you want your motor to look like mine did with no home for the coilpacks..Youll also have to change the throttle linkage to change manifolds...


Look on my website for the pic of my na /t setup.

Kris Weldy
http://home.comcast.net/~volvo4life/Index.html

[hvyman42o]

how can u wire in the coil packs on the na wire harness

[Afunk]

I did this for a customer of mine. The way we did it is bought a jdm 7mgte for $800 shipped from k.wantanabe . We added a npr intercooler and a stock turbo ecu for the same year, but it ended up being an auto ecu. No biggie, jumpered the big fat plug that supposed to run to the tranny for the nuetral start. Its as simple as wireing one wire from the plug into one other wire on same plug. Now the car will start and run fine.
I turboed a 7mge myself on my car, but i cheated and used a haltech FUEL only ecu along with the stock ignition. I ran 15 psi out of a stock na bottom end with a 57trim that made 362 whp on a lower compression turbo motor. So it fealt alot more powerfull because of the compression. The turbo hits harder and quicker with less boost. Drove like a huge v8 , lightly apply gas-total wheelspin. At 9psi it fealt as powerfull as my turbo setup now at 15psi. Truely amazing.
However, the compression of the na limits you to overall possibilities . At about 15psi the compression and heat is too much. Maybe with a strict diet of race gas , you could run it, but without, your asking for it- as the final compression on a na /t skyrockets.

You can get a cam pos sensor , gte ecu for SAME YEAR , all the turbo sensors , wire harness from ecu to engine for gte, and the fuel pump, and injector ballast. Its pretty much plug and play from there.You can change the intake manifold , youll have to change the valve covers- if you do that, unless you want your motor to look like mine did with no home for the coilpacks..Youll also have to change the throttle linkage to change manifolds...


Look on my website for the pic of my na /t setup.

Kris Weldy
http://home.comcast.net/~volvo4life/Index.html

I agree with this post a lot. My car at 11 psi would keep neck and neck with a C5 vette with LS1, not many, if at all, 8.4:1 CR cars can boast that.

With the intake manifold, you have to change at least the upper intake manifold, as the lower intake manifold is the same. The exception to this is if you are using the Y-Pipe setup some have claimed to really help out their power curve. If you do that, you can keep the NA throttle linkage, but it is weird to run intercooler piping to it that way.

As mentioned, make sure your ECU is right for your harness, ie yellow plug ECU for 86.5-88, and green plug for 89-92. Cam position sensor, coil packs, and ignitor I think are all non year dependent. The resistor ballast for the injectors is only needed for the 89-92 years. The 86.5-88 have the same impedence for both NA and turbo.

The fuel pump does not necessarily need to change, but it is probably good to get a cheap 100 dollar Walbro 255lph pump anyways for posterity. It is, however, important that you switch the Fuel Pressure Regulator (FPR) to the turbo model. Also, depending on whether your engine is JDM or not, you will have a "J-tube" attached to the drivers side of the block that needs to be drilled out if you get the walbro.

There is technically no limit to the amount of boost you run even at higher compression ratios as long as you keep them within their predetonation threshholds. It is, however, easier and thus more practical with a lower compression ratio due to that very reason. With adequate intake charge cooling (eg meth or some other alky injection, very efficient intercooler) or just higher octane gas so less volitile, you can run limitless boost until the engines internals give out.

Anyways, any of you all can message me via SF or even my AIM or MSN if you have any questions regarding this badass swap. Good Luck!

[Afunk]

how can u wire in the coil packs on the na wire harness

You. Can. Not.

This is because the NA ECU ignition system is designed to run off the distributor and doesn't have the necessary coding for the direct ignition setup of turbo models.

You HAVE to get a turbo ECU with turbo wiring harness or emulate a honda guy and run a MSD 6AL or some ignition module that can be used for distributor cars but still adjust timing accordingly when under boost conditions.

[itsreese]

Just a question for 90supra n/a-t...
did you part out just the mechanics of the turbo system (manifold, turbo piping, cooling) or did you swap out any electronics doing the 7mgte with 7mget head/ block/ cams? maybe others can help me with this. i want to build my 86.5 n/a into a turbo so im scouting for information. thanks

[socalsupra89]

ok just wondering... i have a non turbo Supra 89 i just got new head caskets on it, and i am thinking of turboing it, well my question is this. Does the W58 Tranny strong enough to with hold the turbo? and do i need to change my GE ecu to a GTE ECU or any other good brand name out there? im just trying to get some good tips out there for my 7mGE

[need new tires]

ok just wondering... i have a non turbo Supra 89 i just got new head caskets on it, and i am thinking of turboing it, well my question is this. Does the W58 Tranny strong enough to with hold the turbo? and do i need to change my GE ecu to a GTE ECU or any other good brand name out there? im just trying to get some good tips out there for my 7mGE

yes on the w58, no on the stock clutch. my clutch lasted 300 miles(clutch only had 7k Total,easy miles)
dont screw with the n/a electronics, i did it and its just not worth the issues with f/a.
buget 2k to do it right. it wont cost 2k to do the swap, it cost to fix all the other issues.

-shane
http://i118.photobucket.com/albums/o90/olddogetruck/100_0813.jpg
http://i118.photobucket.com/albums/o90/olddogetruck/100_0836.jpg

[socalsupra89]

cool thanx for the nice tip... so i shouldnt mess with the ECU? just keep the one i have on my 89 7MGE? and hey how come your top looks different than mine? your spark plugs are on top or w/e... sorry i sound like a newbie but im just trying to learn some here and i appreciate it for ur help guys.

[socalsupra89]

oh ok sorry need new tires... your top looks like mine. but how come thermactor looks different?

[88mkiiisupra]

hi,
Does anyone have any pictures of there turboed 7mge planning on doing one soon and if you can could someone explain to me the parts i would need?

[BloodierSpawn]

I swear to god people just jump right in without reading anything previously posted. If you are such a person, READ THE ENTIRE THING! Then, and only then, ask away.

We now return you to your regularly scheduled posting.

[Supra469]

Very nice work guys.

[Queenskid926]

one question. Where are you guys running your oil drain from the ct26 too? I know they are too options, one is to insert a fitting into the oil pan and jam a fitting in there and use that and the other is remove the block drain for the oil cooler and do that. I believe the block drain is the easiest way to do but would there be any flow problems? I really don't feel like dropping the oil pan if i dont have too. I just wanna have a lil fun with my n/a till i get my gte back from the machine shop and gather the rest of the electronics for it.

[Afunk]

one question. Where are you guys running your oil drain from the ct26 too? I know they are too options, one is to insert a fitting into the oil pan and jam a fitting in there and use that and the other is remove the block drain for the oil cooler and do that. I believe the block drain is the easiest way to do but would there be any flow problems? I really don't feel like dropping the oil pan if i dont have too. I just wanna have a lil fun with my n/a till i get my gte back from the machine shop and gather the rest of the electronics for it.

Hey,

I haven't been on this forum for quite a bit but I saw the email notification lol. The way I did it was to tap the oil pan by lowering the subframe. It's really not too hard as it's only a few big bolts holding the front subframe to the chassis. Be careful through when you weld into the oil pan as it is very thin and can warp easily making it a pain in the ass to get back onto the bottom of the engine block.

The reason I chose this method of returning the oil was because I was able to put in a big enough diameter piping so the flow rate was optimal. I don't think you'd want any back pressure on the oil return as it is gravity drawn (if I remember correctly, I haven't had a supra for a few years). There were issues with using the oil return as it was too small of an aperture so flow rate was not ideal.

You could do a simple calculation relating input pressure, diameter, to output pressure and diameter and see if flow rate in is less that maximum flow rate out.

If you have any more questions send me a PM, although I don't go on here too much, I get notifications through email.

Alex

[racerpage]

A pic of mine

http://photos-e.ak.fbcdn.net/hphotos-ak-snc1/hs017.snc1/4514_1087217377493_1138177472_30224324_1380490_n.jpg

[TheWooz]

very nice what type of management are you using

[zumiez82]

there is a lot of good info here im thinking of doing a swap on my 86.5 ge

[project87]

Hmmmm im about to do an overhaul on my 7mge... then turbo was next in line for plans... So i read that one post said to budget 2k? and expect about a 50bhp gain if dont correctly?? also so mani different PSI's have been mentioned ive gathered that your gonna atlesat want to break it in at 6-7 psi but many of you run your cars well at 11-12?

[project87]

bump lets keep this thread goin

[project87]

let me get a list here of what i think i need and some1 correct me if i need more
7mgte wiring harness and ecu, exhaust manifold, turbo, downpipe, injectors
FMIC, IC piping, BOV, upgraded clutch

Optional: boost controller, guages, anything else?

[TheWooz]

You will also need 7mgte AFM, CPS, coil packs, igniter, oil lines, fpr and fuel pump. Rabid chimp has a nice na-t oil line kit for the ct26. When you buy a harness an ecu pay attention to what year it is and try to match it to your car. Before anything look into your motor and its health. How many miles, factory headgasket, does it smoke, leak or have any other problems. Those problems should be fixed now. If its the factory headgasket i would go ahead and replace it with a nice metal one and ARP headstuds. If you dont replace it atleast re torque the factory headgasket but i suggest replacing it.

[project87]

You will also need 7mgte AFM, CPS, coil packs, igniter, oil lines, fpr and fuel pump. Rabid chimp has a nice na-t oil line kit for the ct26. When you buy a harness an ecu pay attention to what year it is and try to match it to your car. Before anything look into your motor and its health. How many miles, factory headgasket, does it smoke, leak or have any other problems. Those problems should be fixed now. If its the factory headgasket i would go ahead and replace it with a nice metal one and ARP headstuds. If you dont replace it atleast re torque the factory headgasket but i suggest replacing it.

I just got a brand new factory head gasket... so i think im going to try and keep that and just get it working for a bit on low boost, then work my way up to a 2jz swap

does that sound like a good idea to you??

[TheWooz]

good luck either way

[86MKIII7mge/T]

im gunna help some people out there
get the turbo injectors wideband safc fmic oil filter relocation turbo header/manifold a turbo boost timing master you should be fine up to 10 psi easy you want more change the head gasket arp's fresh rebuild high octane gas and some dyno tuning

[crabman08]

do you think i can use my turbo injectors with my na computer and were can i find the na turbo oil line kit or is it just better to make my own

[crabman08]

what do you do about the 2nd knock sensor i already have the engine in the car what should i do about it

[DegreE]

do you think i can use my turbo injectors with my na computer and were can i find the na turbo oil line kit or is it just better to make my own

Its safer to use the GTE wiring harness, AFM, and ECU. Make your own oil lines.


what do you do about the 2nd knock sensor i already have the engine in the car what should i do about it

Take the intake manifold off, drill & tap the 2 locations for the GTE knock sensors.

[86MKIII7mge/T]

if you want low boost i would just stick with what i said high boost just swap the gte in if your looking to make 400-500 your gunna need the gte its cheaper this way trust me...

ive got wayy to much into my na/t and i cant make the hp that a gte makes with out breaking stuff


*edit oil relocation kit from supra sport great guys..

[TheWooz]

Oil lines are easy there is a pressure port on the side of the block near the oil filter. Remove the plug insert fitting feed done. For the drain remove oil pan drill a hole insert fitting drain done. Make sure on the drain put the fitting high up on the pan. My pan had a threaded hole with a bolt in it i drilled that out and inserted the fitting there. Oil relocation might be to much oil.

[crabman08]

thanks i started my car na-t today it runs like a good but sometimes it idles fine and sometimes it surges and the check engine light is on and im pertty sure its the mass air flow sensor becuse you could put your hand over the sensor a little bit and it idles fine but i could be wrong does anybody have the blink code for the check engine lights and i have some other problems like my tach wont work eventhough i have the turbo tach in the cluster and the oil pressure wont read but i have a gauge on my pillar for that so im not worried anbout that to much and my temp gauge dosnt work either i think nwhat it is the engine harness and ecu is out of a 87 and my car is an 89 and i cant find anybidy that has the pin ayout for the harness that like contols the gauges and stuff because i did a post about it earlier and nobody knew what the layout was

[TheWooz]

turbo tach wont work with na electronics.

[crabman08]

i know but i have the turbo tach to