[bequa]

Hello,


I'm goin to NA-T my JDM 97' supra AT and need some help from experienced people like you.

My 2JZ-GE has only about 30k miles on it.

I'm aiming for ~550rwhp

Got R154,
going to buy ACT HD PP with 6 puck disk,
550cc rx7 drop in injectors, (for the beginning..)
3" intercooler with 3" piping,
tubular exhaust mani
Custom 3" catback exhaust system
46mm tial race wastegate
walbro 255lph


Havent decided about:

1) turbo, BW 67mm ETT, 72gts or S372R.
2) engine management - Emanage Ultimate? AEM FIC? MAPECU2?
3) Head gasket - Apexi 2.1mm, HKS 2.0mm, Boost logic 2.5mm ???




Thank you in advance.

 

[kbprice]

Your fuel system will be the thing that will limit you. Get something like 750cc or 1000cc injectors and another fuel pump if your looking for 550+rwhp. Who are you planning to have tune the engine management? This will always make a differance. There are people that "think" they know what they're doing and those that really do.

 

[bequa]

Thanks price,

What engine management would you suggest?

I will probably get another walbro, or denso from TT ?

And what about the head gasket?

 

[Mr Ree NZ]

The best engine management is the one that someone can tune properly for you locally. No point buying something because its the best on the market, only to find you cant get your car running properly.

The denso would be the safest bet provided you buy it from a reputable source. I would also look at bigger injectors and running two pumps as 550whp is going to ask alot of the pump, regardless of what brand it is.

The headgasket depends on a few things...

What octane fuel will you be running? What EMU will you be utilising? Will that EMU control timing or will you leave it in the hands of the stock ECU and knock sensors?

 

[bequa]

Thanks a lot Ree,

I think Emanage and FIC can be tuned safely loccally in here And map ecu2 as well I think.
I want to be sure that I make the right choice between them, I dont want the lack of the features or needed functions for my setup.
Please suggest taking into consideration that car is JDM with different air sensor than USDM. Its 09/96" its not VVTi, but has got new gauge clusters/brakes, etc. I think its OBD2.

I will run better fuel then you got in US, probably RON98 (98 octane) and sometimes 95 octane also (with low boost).
Boost from 9-25psi max.
Maybe TT HG is enough? Or should I go with thicker like BL2.5mm ?

As for pumps I have already bought 1 walbro, will be buying the second one. (How to make them working together? :noob

Thanks again.

 

[msupra]

Ron 98 is actually about 93 octane, the readings are different but its pretty much the same as US premium fuel.

 

[a10secstreetcar]

On the HG a lot of guys are running ARP studs with the TT HG now. I personally was running a BL 2.5mm HG on my last NaT Supra.

 

[bequa]

What is benefit of arp studs comparing to stock? Better fastening?

TT HG is cheaper but I dont want to save cash in such an important item. But if it's quite enough, I have no reason to pay more for 2.5mm.

I still cant decide which head gasket to go with..

 

[HiPSI]

The stock TT headgasket is roughly 1.3mm and puts a stock GE to about 9.2:1 which is great for torque. ARP headstuds will ensure that the head stays sealed, and they can be reused versus the stock "torque to yield" bolts.

 

[twinturbosupra94]

The stock TT headgasket is roughly 1.3mm and puts a stock GE to about 9.2:1 which is great for torque. ARP headstuds will ensure that the head stays sealed, and they can be reused versus the stock "torque to yield" bolts.

TT headgasket and you will be set. 9.2:1 is pretty close to 9:1 which seems to be the new standard. I had the BL 2.5mm headgasket and after using it, its a bit too thick for my taste. Also there is a problem with squench space caused by using such a think headgasket. Also get ARP, they will hold the boost well and are re-usable to some degree.

Also I would not run a piggyback ecu. Just go standalone because that NA ECU is a bitch to make happy.

Don't get the Walbro, just get a Denso. They handle more power and are more reliable.

 

[bequa]

Thanks,

If you say so, I will get a tt headgasket from driftmotion.

Standalone is too expensive versus aem fic or emanage.. On the other hand, if piggyback is tuned well then is there any other issue? Why do you think piggyback will not handle the job?

And which turbo to spool up fast, with high end power capablility?

 

[twinturbosupra94]

Well the problem is that Karmen Vortex is really fickle. I mean AEM EMS used are pretty cheap. There is one for sale in the for sale section for $900 which isn't bad.

 

[bottlefedss]

please post pics of the build... very interested to see how it goes

 

[bequa]

@ twinturbosupra94

Thanks for tips, but could not found aem ems for $900, there is one for a grand, anyway found mapecu2 for 575, what about that? I know you are gonna say go standalone, again


@ bottlefedss

When the build is started, I will create a new thread with plenty of pics, but I am in chase of needed parts and deciding which parts would be optimal for budget and power in hps

 

[Ryeno]

Standalone is too expensive versus aem fic or emanage.. On the other hand, if piggyback is tuned well then is there any other issue? Why do you think piggyback will not handle the job?

Just about everyone who has gone NA-T and got it running well said the piggyback couldn't handle it with the na ecu. The other option is to convert to a TT ECU (like a cheap aristo one) and then try running a piggyback on top of that.

And which turbo to spool up fast, with high end power capablility?

one or the other

 

[Kruso]

AEM EMS FTW, worst decision I've ever made was going MAP ECU, always regretted it. I purchased MAP ECU right when it came out, AEM was only a few hundred bucks more at the time. AEM EMS is very reliable and potential is unlimited (relatively). I'm on the hunt for a AEM EMS as we speak aswell.

Kruso

 

[quickgs]

AEM EMS FTW the best thing i have ever bought for my na-t actually that was the first thing i bought , i was 1jzgte bought the AEM then i went na-t and sold the gte some of you guys may think i am crazy but that's what i wanted na-t .

AEm and never look back my friend, i know a couple of people here are using map ecu with success but....

Turbo i would say 6265 with 81.ar

hG i would do tt , your car will not feel slow off boost with billet 67 91.ar with TT cams , TT head gasket ,1600cc injectors , AEM EMS, 3.92 rear diff, R154 i hit 21 psi at 3700 rpm till 8k rpm.

 

[SupraSlow]

diff post some pics on your progress once started I to would like to see the process.

 

[bequa]

Thanks guys,

As for turbo, I'm thinking to with BW 67mm ETT airwerks .91 a/r twinscroll,

What you think of that?

And maybe I'm goin to have more than 500rwhp .... ?

 

[Kruso]

The a/r side is too large IMO, obviously its your preference but with a large a/r you're power band is going to lay in the higher RPMs. You might wanna consider .68 a/r with such small injectors and it'll be sufficient even once you upgrade your fuel.

Kruso