Installing a gt35r with stock ecu

[suprahero]

I'm going to be installing my gt35r onto Vonda's 89 supra. She has a built automatic and a rebuilt 7mgte. I finally got rid of all the little bugs that have plagued me for over a year and a half. No code fifty two FTW!!!!

I bought a new manifold and a t4 to t3 adapter for it. I plan on running a new oil feed and a new oil drain. I have the Lexus afm and the 550's already installed along with a walbro fuel pump. It also has the SAFCII installed and that's what I plan on adding more fuel with.

I was wondering how the stock ecu is going to like this larger turbo. I know it's not a large turbo but it is bigger than the ct26. It's been so long since I've had to deal with the afm that I was wondering if it's going to be throwing the abnormal boost code. Hopefully it won't. Her upgraded turbo that's on it now throws that code every once in a while. I'll make sure and double check all of the couplings before I run it.

Hopefully I won't have any problems with this setup, but if you know of any, please let me know so I can head them off. Thanks.

 

[siccdragon]

Should be fine as long as you stay under fuel cut. But SAFCII will only get you so far, at least that is my understanding.

 

[gaboonviper85]

Yeah you shouldn't get boost codes unless you fuel cut...which you probably will with the new turbo lol.

It should be fine but get the car dyno tuned!

 

[gurley0916]

Could always get rid of the SAFC and the afm and go map-ecu get more tuning intervals and you can tune with a laptop. Oh also it changes the reading to MAP and you use the injector frequencies to control fuel cut.

 

[suprahero]

I'm not that worried about fuel cut since she doesn't plan on running too much boost. I would like to run it at around fifteen psi though without any problems. The SAFC will be sufficient for right now on the tuning. I was just curious about any problems although I couldn't think of any that I knew I would have. I just wanted to be ready for them in case someone else had already had them. Thanks.

 

[kotu100]

you should be able to hit 15, not sure how it compares, but i've run up to 17psi in my t64 with stock ecu, 550/lex, safcII without fuel cut, that kicks in at 18

 

[suprahero]

Different cars are going to hit fuel cut at different boost levels, but I think I'll be good to go. Thanks.

 

[empera]

yea u'll be fine, if anything just compensate fuel with the AFC

 

[pln]

been at 18psi with gt35 and mapecu2 all sommer and never hit feulcut. actually been up to 20 once by mistake without hitting it. This is with mapsensor.

 

[suprahero]

I'm hoping the built A340e will like the new added horsepower. I don't really look forward to rebuilding it again. I've spent two grand on just the tranny so it should be good to go for at least a year or so...........hopefully longer.
I'll be tearing it down today or tomorrow. I'll try to get some pictures.

 

[suprahero]

I took Vonda's car out for one last drive before I tear out the old turbo. The new turbo should start going on sometime tomorrow if I get through with work in time.

Here's one of yours truly.

 

[tekdeus]

I'm still on stock ECU with SAFC. Fuel cut shouldn't be a problem at 15psi. I do have the Lexus AFM adjustment screw all the way out and barely hanging on with some tape on the threads With water meth I didn't hit fuel cut even at 28psi, but that's pulling 22+ on the SAFC to compensate for the methanol/h2o

 

[suprahero]

Do you have the R154? The auto is probably going to be her only limitation on horsepower. It's probably a great tranny, but I don't know how long it will take the abuse of 450rwhp or there abouts.

 

[grimreaper]

Ive always loved an auto trans with big(ish) turbo. Non stop pull =

 

[Boost Lee]

Ive always loved an auto trans with big(ish) turbo. Non stop pull =

76mm + AT = :aigo:

Jay, you guys will have no problems running 1 Bar (+/-) with the stock ECU/Lex/550.

Pictures please, sir.



:biglaugh:

 

[jugodegolf]

Should be quite fun with that turbo Jay.

Great pics what kind of camera you using?:icon_razz

 

[suprahero]

Should be quite fun with that turbo Jay.

Great pics what kind of camera you using?:icon_razz

Did you hit your head on the steering wheel when you came out of boost? It's your camera silly and you took most of the pictures. I knew getting old was going to be tough, but you're scaring me now...........:biglaugh:

 

[suprahero]

Thanks for the other comments as well, and Jeff, I'll take pictures as I go. They probably won't be as good as the one's George's camera took, but hopefully they won't be in black and white.

 

[Supracentral]

I'm hoping the built A340e will like the new added horsepower. I don't really look forward to rebuilding it again. I've spent two grand on just the tranny so it should be good to go for at least a year or so...........hopefully longer.
I'll be tearing it down today or tomorrow. I'll try to get some pictures.

Get in touch with Raven97990

http://www.supramania.com/forums/member.php?u=1412

He knows more about building the A340e than anyone I know.

 

[suprahero]

Thanks Mike, if and when it tears up again, I will. When I said I'd be tearing it apart, I meant the turbo assembly and down pipe. Hopefully this trans is going to last her for a while though.