Question Reguarding Current Turbo And Mod Setup

[erall0]

hey all, recentley picked up a auto r34 gtt 4 door and im not sure what boost it should be running

mods are

t04e stage 3 turbo

external wastegate

3 1/2 straight thru exhaust turbo back to a nur spec cannon

greddy fmic

spitfire coils

tomei fpr 90 psi

100 oct premium

its running 14 psi at the moment as is is that too much or can it go more every where i have looked has suggested 14 on a stock turbo is the limit but is that the limit for the turbo or the tune

thankyou

[89CAL]

Standard ECU?

That will be your issue, I'm suprised you managed to run 14psi through a bigger turbo on the stock ECU and it works.

I dont understand what a T04e stage 3 turbo is...... has it been worked to flow more?

Either way a T04 is much bigger then stock so I would probably stick it on a dyno to check AFR's or wind the boost down to be safe

or get an aftermarket ECU and push it

[erall0]

well ive had it up to 17 - 18 psi before by accident and was surprised that i never hit fuel cut im pretty sure it is a stock engine and ecu apart from them mods turbo specs are

Inlet Diameter: 4"

Outlet Diameter: 3"

Compressor Wheel: .57 Trim

A/R Compressor: .50 A/R

A/R Turbine: .63 A/R

forged compressor wheel

what boost do you suggest for the time being as the nearest dyno is atleast 500k

[89CAL]

if you bought the car and it was running 14psi and you cant hear any detonation etc then I guess it will be O.K

I wouldnt wind the boost up put it that way. Remove the passenger kick panel and see if it has an aftermarket ECU or piggyback. Sounds like it must have something to be able to hit those boost levels.

See what you can find

[Moodles2]

FPR @ 90psi (WTF!), an ebay special turbo... this car sounds like a bomb that is ready to blow at any time.

[89CAL]

FPR @ 90psi (WTF!), an ebay special turbo... this car sounds like a bomb that is ready to blow at any time.

wow i missed that lol

[75coupe]

The whole combination of mods sounds weird, maybe the previous owner is telling fibs?

What boost guage are you running and where is it readig its pressure from?

What boost control method?

Its either not not a std ecu or its not hitting those boost levels or its a time bomb...

[erall0]

blitz dual ebc

reading boost from the stock sender

not sure where the turbo is from i was told it is a t3/t4 t04e stage 3 from the owner it doesent look like a ebay special but it could be fpr was set when i got it havent played with it what should that be set on?

[Hanaldo]

fpr was set when i got it havent played with it what should that be set on?

More than half of what you say it is lol, base fuel pressure is 43psi.

[erall0]

had a mate come look at it this morning he does alot with silvias he adjusted the fpr for me its at 55 now

apparentley it has a mine ecu i think he said but he also said that 14 psi on the bigger turbo will be maxing out my injectors

then he said that he didnt think they made a mine ecu compatiable with tiptronic auto

[scotty nm35]

This won't end well...

[GTSBoy]

[erall0]

lol thanks

[Josh_TypeX]

FPR would have been set so high to allow the stock injectors to keep up... Bad idea to turn it down from where it was set. Though it is also a bad idea to keep running it as is regardless.

[clip14]

a genuine 57 trim will flow in the region of 400 to 450 hp

buy some genuine 600cc+ injectors

throw away your fpr (or set it back to 1:1 rising rate)

get a decent fuel pump

get a standalone ecu

put it on the dyno and tune until you start seeing your intake temps blow out (turbo efficiency range exceeded) or you run into some sort of restriction

the auto box may cause you some issues ...

[KiwiRS4T]

Turn the boost down and drive it gently till its fixed or you could be looking at a new engine.

Take the car to a tuner and get him to have a look at the Mines ecu to see if its tunable (most are not).

If not buy a stock R34 auto ecu and get a Nistune chip put in it. Get some Neo friendly injectors 550 or better.

Look in the tank and see if you have a new fuel pump. If not, buy one and install it if you can or if not add it to the injectors.

You will need a genuine Z32 afm (and plug) if you haven't already got one.

Ask around and find a good tuner (in another town if necessary) and hand him all the bits (or install the bits and tow the car to the tuner) and get it tuned (point out, although he should notice, that the FPR needs adjusting). If nothing has been damaged it should go well.

In the meantime baby the car - no mega boosting, no skids etc.

[erall0]

thanks ill do that