Na-T QUESTIONS FOR 600RWHP

[quickgs]

Thanks ED i will be checking my PM.

So i got the EMS yesterday and it doesn't have the Serial# on the back and i was damage during shipping because of poor packing and he didn't insure the package, it has a chip on the side.
I tried contacting the seller and he wouldn't pick up my calls, so i call AEM this afternoon and they told me not to worry about the chip and that i can send it to them so they can open it and see if there is any damage for $ 75.
So i am trying to contact the seller and see if he what to pay the $75 to get it checked out, i really want the unit, but my local tuner is trying to talk me out of the AEM he wants to sell sell me the Haltech PS1000.
I like the Haltech but since i will have to rewire it to my car or pay him $600 to install it which i don't wanna do.
I want to be able to put my car back to stock whenever i wish, but with the Haltech you have to cut into you factory harness and it doesn't use all the factory sensors.
Right now i don't know what to do??? i am confuse, tired, pissed off,. and frustrated.
I feel like selling all my parts and the car and buy something else, i ahve been spending money on this car from the day i picked it up, this S$$$ never end.

[quickgs]

Change of plan I just Upgrade my turbo to the Billet 6765 and it should be here friday so i will post some pics.

[lexforlife]

Thanks ED i will be checking my PM.

So i got the EMS yesterday and it doesn't have the Serial# on the back and i was damage during shipping because of poor packing and he didn't insure the package, it has a chip on the side.
I tried contacting the seller and he wouldn't pick up my calls, so i call AEM this afternoon and they told me not to worry about the chip and that i can send it to them so they can open it and see if there is any damage for $ 75.
So i am trying to contact the seller and see if he what to pay the $75 to get it checked out, i really want the unit, but my local tuner is trying to talk me out of the AEM he wants to sell sell me the Haltech PS1000.
I like the Haltech but since i will have to rewire it to my car or pay him $600 to install it which i don't wanna do.
I want to be able to put my car back to stock whenever i wish, but with the Haltech you have to cut into you factory harness and it doesn't use all the factory sensors.
Right now i don't know what to do??? i am confuse, tired, pissed off,. and frustrated.
I feel like selling all my parts and the car and buy something else, i ahve been spending money on this car from the day i picked it up, this S$$$ never end.

heres a couple of pics you wanted

[quickgs]

Damnnn one of the clean Na-T set up , I like the way it looks so i m not gonna worry about that IM thanks for the pics SiR.

[twincharge]

I have pushed the stock cams to 756rwhp with a 76mm turbo and high boost. Cams will allow you to run more reasonable boost to get the 600hp you want. I was able to get just over 600rwhp with a 70mm turbo and stock cams.I did a cam test with D-sport mag and HKS and was able to make over 100 hp with cams. The stock plenum will also work fine for your power goals. I also ran a three inch exhaust with a 4inch down pipe. We removed the exhaust during one of the 700 plus dyno runs with not one more hp gain.

[quickgs]

Thanks "Twincharge".
What do you guys think about the 67 with TT HG ?
Will this set up make 500+Rwhp on Pump gas?
I really don't wanna insatll the TT HG and and regret it if i don't reach my goal because of the HG.
I need yall opinion on this please thanks for all yall help guys.

[lexforlife]

Thanks "Twincharge".
What do you guys think about the 67 with TT HG ?
Will this set up make 500+Rwhp on Pump gas?
I really don't wanna insatll the TT HG and and regret it if i don't reach my goal because of the HG.
I need yall opinion on this please thanks for all yall help guys.

yes you can do it without a problem although i recc adding cams for it will allow you more power on less boost however the higher the compression ratio the smaller you margin of safety becomes and the more critical the tune

hence for now why i went and put back another boostlogic 2.5mm hg for extra margin of security..

on a 67 with cams with a .81 hotside with tt hg you will make 500 at around 17-18psi no sweat but again making sure your tune is spot on

[ophidicus]

I like the Haltech but since i will have to rewire it to my car or pay him $600 to install it which i don't wanna do.
I want to be able to put my car back to stock whenever i wish, but with the Haltech you have to cut into you factory harness and it doesn't use all the factory sensors.
Right now i don't know what to do??? i am confuse, tired, pissed off,. and frustrated.
I feel like selling all my parts and the car and buy something else, i ahve been spending money on this car from the day i picked it up, this S$$$ never end.

Halktech sells a PnP Patch Harness that plugs into your existing factory harness that uses all your factory sensors just like AEM. Thats what I did

[boosted_b20]

aren't you supposed to run 3.76 gears with the R154?

[lexforlife]

aren't you supposed to run 3.76 gears with the R154?

thats what i run and i think its perfect match

[gixxer750ms]

What do you guys think about the 67 with TT HG ?

I really don't wanna insatll the TT HG and and regret it if i don't reach my goal because of the HG.
I need yall opinion on this please thanks for all yall help guys.

hence for now why i went and put back another boostlogic 2.5mm hg for extra margin of security..

2.5mm headgasket is nuts. Do you know what your compression ratio is? Do you have much power off boost?


I screwed up and did a TT headgasket and TT pistons and wound up with 8.1:1CR.. I am pulling the head off after TX2K10 to have the head cut 1mm and get the quench area back where it needs to be. The car makes good power, but it could be so much better and will be when I put it back together.



You'll be just fine with a 67 and TT headgasket. It should be around 8.5:1. Me personally, I'd rather have 9:1 CR after riding in a few cars and tuning them on 9:1...

[quickgs]

Thanks for the inputs guys,I will just keep the TT HG and pray lol.

Ed I will be upgrading the Cams on the second stage of the build, so next year i will do the Fuel system, cams,Botton End.
If we can pull 500 around 17-18 i will be really happy.

"Ophidicus" My Tuner is a Haltech dealer and told me that the PNP Harness and ECU will run me ~$2k to $2.5K which i think is alot of money.
I wanted the Platinum Sport 1000 he wanted $1600 ECU +$600 installation +$300-500 to tune the Car that when i decided to go AEM and i don't like wiring stuff.
I choosed AEM because few members on Here used it to go distributorless and i am doing that set up on my car with the help of my buddy.

What's wrong with R154 with 3.26 lol,my friend has it on his SC and liked his set up that's why i got it.
And i had 1JZ with W58 on my car and the MPG on the HWY sucked thant's another reason why i got it.

Next time around when i pull the motor out i'll install the 2.0mm HG and turn it UP.....
With TT HG it will be around 9.2 /9.3 right...

[quickgs]

Change of plan I got the Billet 67 i will post of pics when i get home.
I decided to go with 2.5mm HG because with the TT HG at 18-20 PSI is like trying to blow up the engine and we don't have room for error, better be safe than sorry.

[WiLLs SuPra]

^^ That isn't true..you can run a TT headgasket and still run the billet 67 turbo on safely. It's all about the tune..and what psi. I know some tuners tune the car to 22psi on pump...while others stick to the safe mode and put it on 17lbs. So why not just leave the TT headgasket and run 17lbs..and if you want to run higher boost..get some 110 or C16 or E85 and run 25-28psi safely. It is no damage to the motor at all, it's all about the tune...if you don't trust your tuner or if your tuner says 22psi on pump..then you might want to consider telling him to put it on lower.

Oh the 6765 is a monster and crazy turbo! You will definitely need to upgrade your fuel system...as that is my next step.

[quickgs]

Ok i see what you are saying and alot people are telling me the same thing I will use the TT HG i am just waiting on the Head to come back from the machine Shop.
The Next thing will be the fuel and i don't wanna run E85 for now because not too many Gas stations in my Area.
If i can 500rwhp on Pump Gas with TT HG i will be happy as hell, i can always pull the head and upgrade the HG to the 2.5 if i want more boost on Pump Gas or maybe do 2.0mm instead of 2.5.
I got my Turbo and it look smaller lol i thought it was the 6265.

[WiLLs SuPra]

^^
1) I hope you mean 500rwhp as 5000rwhp is pretty much impossible lol..you need to ride a plane for that.
2) A TT HG will give you more better all around performance...maybe 28-30psi max..anything after that I wouldn't want to push it...as stock internals probably is limited by then.
3) A 2.5mm HG is fine as well instead of 18psi limit for the TT you can probably run 20-21psi on pump...and thats what you see most of the people do. You can probably run like 30+psi with that hg.
4) E85 is only good like what you said if it's in ur neighborhood..if not..I'd stick to what you can get.
5) 2.0mm and 2.5 isn't a drastic difference..it's whatever you want bro~ I have a 1.9mm cometics on my motor..and I love it. It's almost identical to the TT compression.
6) Either HG you choose you are good to go, it's all about the tuner on what he/she does to your motor. Also, do you plan on running high booost alot of time..I mean if you are aiming at only 500rwhp and maybe 6-700rwhp a TT HG can get you that. A 2.5mm will be your insurance for the 700...just my .02

[gixxer750ms]

What's wrong with R154 with 3.26 lol,my friend has it on his SC and liked his set up that's why i got it.
And i had 1JZ with W58 on my car and the MPG on the HWY sucked thant's another reason why i got it.

Next time around when i pull the motor out i'll install the 2.0mm HG and turn it UP.....
With TT HG it will be around 9.2 /9.3 right...

Top speed = 1 million mph with that gearing....LOL

My R154 and 3.90 ratio diff gets GREAT highway mpg, even though the cruising rpm is a little higher(3200) than I want it at 80mph. Get 30 mpg all highway driving at 80mph.

with a TT headgasket and nothing else, you will be at around 8.6:1

Running that big thick headgasket makes quench even worse than it already is with the TT and decreases knock resistance.

[IggySupra]

Me personally, a TT HG is just fine. Not too high if a CR, and not too low as compared to the 2.5mm. Again, that is just me. But that TT HG will do you just fine with what you want. Like everyone else is saying....................

tune tune tune!!!!

That will be the key to either a TT HG or a 2.5mm HG

To me it sounds like you know what you are doing and getting yourself into. So goodluck!!

[lexforlife]

let me throw my 1 cent into the ring here

i have and have been running boostlogic 2.5 mm since day 1 .. upon intial install the first time off boost driving was alittle sluggish but i dont know if that was because i had loads of carbon in the head area and /or the inital install was flawed by not trq head correctly so it eventually leaked

now i went and bought a new 2.5mm and had a fresh head put on where valves were lapped clean , guides and stems cleaned , new springs retainers etc etc and had the head milled and now car feels very very peppy out of boost

i have driven in my firends teelex's full gte swapped sc , i have driven in wickedsc's car which is na-t with a gte bottomend and truthfully the diff between us 3 out of boost is barely if at all noticeable.. i will say the full gte swap felt a tad peppier but if you were not specifically looking for a diff i bet no one would ever notice


so i dont think theres much to worry about going 2.0 or 2.5mm or tt hg although imo i would opt for the option that will give me the greatest protection against engine failure for lets be honest , not all of us run around everyday on race gas and we know quality of pump gas can vary tank by tank

[quickgs]

Damn guys this the hardest decision i have ever made lol, so last week end i had to replace the LCA Bushing on one on CL and SF member SC300 .
It has XS Power Kit on stock compression running about 8 PSI but damn the Boost is instant I was like WTH ?????
My 1JZ was slow as hell compare to that....

I will use the TT HG, if it blows up i got another Engine Sitting and will go to 2.5mm and Boost the hell out of it i just wanna have Fun and i am not worry about doing it again because i do my own work so i can pull the Head and swap the gasket in few hours no big deal for me.
Some on the Billet 67~17-19 i should be around 500rwhp is that what you guys are saying?
I wanna get used to the 500RWHP till next February and upgrade the fuel maybe V160 .

With R154 with 3.26 ratio what would my top speed would be ? i don't know how to calculate not good my math lol.
This is my DD so i need i don't what a setup that will be slow as hell off boost, I had 4.27gearing when i first did the same but my mpg when to hell .
5th gear on the W58 with 4.27 60/70MPH ~4300 -4700 rpm.

I know it's all in the Tune!!!!!!!!!!!!!!!!! that's right thanks
Lol what am i getting myself into ? is it good or bad please lol.

Thanks for the inputs.

[Wicked SC]

I really don't see why you're concerned about using the TT Headgasket? I've been running on it for the past four years with no issues, granted I'm running the GTE shortblock and I'm not sure if that throws off the compression versus the GE shortblock..You won't/shouldn't have any issues running the TT Headgasket...
Just my $.02

[WiLLs SuPra]

Damn guys this the hardest decision i have ever made lol, so last week end i had to replace the LCA Bushing on one on CL and SF member SC300 .
It has XS Power Kit on stock compression running about 8 PSI but damn the Boost is instant I was like WTH ?????
My 1JZ was slow as hell compare to that....

I will use the TT HG, if it blows up i got another Engine Sitting and will go to 2.5mm and Boost the hell out of it i just wanna have Fun and i am not worry about doing it again because i do my own work so i can pull the Head and swap the gasket in few hours no big deal for me.
Some on the Billet 67~17-19 i should be around 500rwhp is that what you guys are saying?
I wanna get used to the 500RWHP till next February and upgrade the fuel maybe V160 .

With R154 with 3.26 ratio what would my top speed would be ? i don't know how to calculate not good my math lol.
This is my DD so i need i don't what a setup that will be slow as hell off boost, I had 4.27gearing when i first did the same but my mpg when to hell .
5th gear on the W58 with 4.27 60/70MPH ~4300 -4700 rpm.

I know it's all in the Tune!!!!!!!!!!!!!!!!! that's right thanks
Lol what am i getting myself into ? is it good or bad please lol.

Thanks for the inputs.

1) TT HG is fine...and you won't blow up your motor because of the gasket, rather you are going to blow it b/c of tune or other mechanical parts.
2) A R154 has a 3.26 ratio..however, it effects on what is your differential. If you are using your stock diff...depending on year..it can be either 4.27 or 4.08. If that's the case you are fine, your max mph is about 160mph. If you have a complete R154 and a Auto TT LSD you are probably maxing out at around 170ish...give or take...at 70mph on the stock diff you are at mid 3k and with a auto tt rear end you are at low 3k.

[quickgs]

Wicked It's not the same it make a big difference if you have a GE block with TT HG or GTE block With TT HG.
The motor is in good shape, and my tuner is one of the best in th East Coast (SRT Racing) so i know it won't blow i was just saying.
Thanks for the info.

[gixxer750ms]

* First Gear: 3.250:1
* Second Gear: 1.955:1
* Third Gear: 1.310:1
* Fourth Gear: 1.00:1
* Fifth Gear: 0.753:1


3.26 Ratio diff

275/40R17 tires

7500 rpm limiter

Top speeds by gear.

1st - 54
2nd - 89
3rd - 134
4th - 175
5th - 233




That thing is going to be a SLUG with that gearing.

Repeat for 154 and 3.76 TT auto gearing

1st -46
2nd -77
3rd -116
4th - 152
5th - 202


Repeat for 3.90 Lexus gearing(what I'm running)

1st -45
2nd -75
3rd-112
4th-146
5th-194



All this is based from proven mathematics, not speculation. These are actually top speeds at 7500 rpm rev limit per gear, based on the most common tire size run on stock supra wheels.

I like my 3.90s, but I'd be happy with 3.76's Do we really NEED to go over 200mph?

I have an 8K redline and 18" wheels with 285/35/18's My 5th gear top speed is 209. Thats quite fucking fast enough. I've never had the car over 160

[gixxer750ms]

Running the 6 speed or 3.26 lexus diff is retarded with an R154. It will make the car rediculous slow. Would be cool for running the TX mile though.

Actually, just figured it. At 70 you will be at 2230 rpm with that setup. I don't think the 2jz will appreciate that, and fuel mileage will probably suffer as the engine is not efficient there, nor does it really make enough power to pull itself. You will be running a large degree of throttle opening to maintain 70. If you are cruising at 90 however, you will probably get great mileage.