Intake and TBs - Aug Fastrack

[Z3_GoCar]

If you remember my concern about the blanket allowance of 3.2 liter motors in STU. I just came across this thread:

http://forums.bimmerforums.com/forum...7&postcount=14

This is with bolt-ons and a retune, results 328hp at the wheel.

[Greg Amy]

This is with bolt-ons and a retune, results 328hp at the wheel.

...and 3520# and 7" wheels...?

[Matt93SE]

328hp / 3520lbs * 2640lbs = 248hp.

My 2.4L I4 would have to make 250whp to keep up with it strictly on power to weight.

A 3500lb car with 328whp and the same tires I can fit on my 250whp 2600lb car? It won't run away on the straights, my 2600lb car will be more nimble, and his tires will be toast by the end of a 40 min race. IMO that's very much within the class philosophy on power/weight, and my lighter car will have the advantage in the long run.

[Z3_GoCar]

...and 3520# and 7" wheels...?

I know it was early Greg, but isn't it 8" rims? Also, 245/255's could be up to the task for a sprint race even at 3520 lbs.

328hp / 3520lbs * 2640lbs = 248hp.

My 2.4L I4 would have to make 250whp to keep up with it strictly on power to weight.

A 3500lb car with 328whp and the same tires I can fit on my 250whp 2600lb car? It won't run away on the straights, my 2600lb car will be more nimble, and his tires will be toast by the end of a 40 min race. IMO that's very much within the class philosophy on power/weight, and my lighter car will have the advantage in the long run.

That's for a motor that wasn't even touched on the inside and running a retuned oe DME. Now here's a race built motor with a custom AEM set up:
http://forums.bimmerforums.com/forum...80&postcount=1

Do you think you can get 270hp?

[Greg Amy]

You are correct, sir: 8" wide for STU. 7" is STL.

If the engine is too powerful for STU it'll either get a restrictor or get moved to STO. Make a request with supporting data and the CRB will consider it.