View Full Version : Diy throttle body porting

Double J
05-20-2012, 04:04 PM
Hello, any suggestions on "how to" correctly? Necessary precautions?
What grade sanding or stone to use for PORT AND POLISH? If done correctly what kind of gains?

05-21-2012, 03:07 PM
professionally ported TBs might show a 4-5 difference in HP from everything I have read here. Do not grind near the blade.

Bo White
05-21-2012, 06:49 PM
Before you take it apart use a sharpie and scribe around were the blade is and use that to know were not to go.