Thread: Feeler: Ported/Polished Throttle Bodies

this is interesting.

any info with gains from this mod?

I purchased the 64.5 mm TB from OEM earlier this month. We also bored the stock DE MAF to around 54mm.
My car is a dedicated road race car only. Stock VE bottom end. The head has been cleaned up, match ported and a 5 angle valve job. 3" exhaust turned to the side with a gen 6 header. Calum RT, N-1 cams and 100 oct race fuel. The car has been on several dynos but never the same. It has ranged from 189 to 203whp on stock cams. I installed the N-1's and ran a few races including the convention in Ga. untuned. The car ran well and was not leaning out.
Now I installed the OEM TB and bored MAF. and tuned. After goung back a second time, after extensive tuning. I gained 10whp above 6800 rpm but lost 5ftlb torque.
Here is the thred of the first time.
http://www.sr20-forum.com/vvl/21978-some-ve-noise.html
Gentlemen this is a race car. PLEASE do not ask me what the final #"s are. You just got to come to Sebring next weekend to find out how the car runs.

Thanks,
Andy R.

Wooow man I just got the call and will be starting my job saturday. I wont be able to make the race . I'll let you know if anything changes.

Without a doubt these TB work. See for yourself.

http://www.sr20-forum.com/road-racing/22475-sebring-long-course-9-09-vvl-powe.html

how much for this done to sr20ve t/b?

you will have to pm mark at overkill

did you use the same butterfly in the Tb after machining it?

Thanks

No. The stock plate is brass. The OEM TB comes with a polished plate to the correct size.

how are you and your car doing man ? havent seen you post in a while bro.

stratton.