ecu modding

[hyper3000gt]

best place to send the stock ecu from a non turbo to be upgraded for turbos? I heard jim wolf was good would like to know opinions on them and possible other options.

[3000gttom]

the only stock ecu's that can be reprogrammed are in the 98-99 cars, otherwise you will need an ecu from a tt car or get one of the 98-99 tt ecu's because they are able to be flash tuned

this thread would be better in the turbo section of the forum, for some strange reason the n/a 3s community doesn't believe in tuning

[hyper3000gt]

correct me if I'm wrong but weren't the 97 and 98 3000gts identical? I have a 97 so I was thinking the ecus could be flashed or chiped.

[Hans@GZP]

No, they are not the same.

[stealthee]

97-98 were identical exterior wise, but the ECU and wiring harnesses were different.

[hyper3000gt]

well is the engine control ecu and the transmision control ecu one in the same or are they seperated in the 3000gts? becaue if they are not seperated I can't use the ecu out of a vr4 because they are only manuel transmissions and mine is automatic.

[stealthee]

Automatic cars have a seperate transmission control unit.

People have used VR4 ECU's in Automatic cars.

[hyper3000gt]

ok that's good to know however isn't there a compression difference between the vr4 and sls engines? wouldn't this throw off the programing from the vr4s computer? also if I were to get a vr4 ecu and put it in my sl does it conect to the harness without any modification?

[stealthee]

From what I have seen in other threads the SL ECU is programmable as some people have "turned a SL ECU into a VR4 ECU."

The whole point of it being flashable means you can account for many changes/differences.

[hyper3000gt]

From what I have seen in other threads the SL ECU is programmable as some people have "turned a SL ECU into a VR4 ECU."

The whole point of it being flashable means you can account for many changes/differences.

yea but I'm being told the 97 sls can't be flashed.