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Hey all ive got a 1996 4 door R33 GTS-T auto.i have put forged pistons and metal head gaskets in and a highflow turbo with all the other normal mods 3inch, pod, fmic, ebc and a stage 3 shift kit put in. I am looking at getting a full replacement ecu and new injectors. The car is making 300hp atm with a SAFC2. My car is poor on fuel even driving off boost. I was just wondering what workshop is best for my kind of car being an auto ,which management would you use ? thanx

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im from down south i got the shift kit done at South West Automatic Transmissions bunbury. i reckon it was 1 of the best things ive done to the car so far .be good to see how it gose with a good ecu and tuned.

Can you PM me details please? This is the first mob I've heard of that do them in WA! Hopefully they can do the tiptronic boxes..

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  • 2 months later...
any ecu will work

the auto transmission is not controlled by the ecu like on the r34

you will lose timing retard on shift changes , shifting will be more abrupt . but if your getting a shift kit anyway it won't really mater

hi.. um is that true? the auto is not controlled by ecu????????

an wat you mean will loose retard timing on shifts?? is that all the ecu really does??

coz i swapd ecu's one day an it wouldnt shift to good at full noise..

was like it lost the electronic shift at full throttle....

so a shift kit will fix??

cheers

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hi.. um is that true? the auto is not controlled by ecu????????

an wat you mean will loose retard timing on shifts?? is that all the ecu really does??

coz i swapd ecu's one day an it wouldnt shift to good at full noise..

was like it lost the electronic shift at full throttle....

so a shift kit will fix??

cheers

In R33's the TCM and the ECU are separate, R34 they are in the same unit.

When you use a non-auto ECU it doesn't know to receive signals from the TCM to cut timing when the gearbox wants to shift gears.

This is pretty much what happened with the Haltech in my wagon, it would flare horribly on the 1-2 change and not go in at high rpm unless I lifted the throttle or bounced the limiter.

Got a shift kit installed and it is phenomally better, it doesn't care that the ECU isn't cutting timing, it just GTF in there.

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