Did Jspec S5 T2 trannies have different rations then S4 US ones? What about S5 US ones?

I have a stock NA diff in my car and an S5 T2 S5 trans and im revving about 4krpm at 90mph, does this sound right?

Next question: I am currently using the stock ic mounted in front of the radiator. I can get a Volvo unit for fairly cheap, almost free.

Is it worth the hassle with moving tha rad and changing the piping to use the volvo on my stock turbo car running up to around 12-14 psi? (untuned 680 injectors).


And one more. If i just put 680s into it on a stock ecu and turn it up to 14 psi, will i run the risk of running lean between 2800 and 3600 when the car is only on primaries and at 14 psi?

Thanks,
Jakob

 

bump

 

jakob, how are engine temps for your car? i have a feeling if you put the volvo in, it would block too much air to the rad and your engine temps will increase

 

My temps are just below 1/4 all the time without the fan on except at idle.

At idle they will slowly rise (fan off) to 1/2 over 15 mins of idle at which point i turn the fan on and voila! temps back down to just below 1/4.

Not bad for a stock ic front mounted eh.