Quote:
Originally Posted by winders
I would say it depends on the build. I had a 3.6L race engine that, due to class rules. had to run a 1995 993 intake and 1 5/8" headers. The flap being open or closed made a difference there.
Soon I will be putting a a 996 GT3 setup on my 369 RWHP 3.6L race engine with AT Power ITBs and 1 3/4" headers. We will do dyno runs with the resonance flap open and closed at 100% throttle to see the differences. We will also do some partial throttle tuning to see what happens with the resonance flap open and closed to how that works out.
I am told that on engines like mine that the flap makes a difference and that difference is not small.
|
interesting - be sure to post it here please.
where did it make a difference on your current build? The flap is mostly open on a racecar I guess? Do you gain more torque in low revs (<5000)?
I would really like to find a good solution to our JSR ITBs as well.