Got bored today so I ported and polished the throttle body. No lie I felt a huge difference in throttle response and it feels like it pulls harder around 3k.
Before
After
02 Cavalier Z24- Free CAI I made, magnaflow muffler
02 Trans am ws6 - Pace setter long tube headers, off road y-pipe,magnaflow exhaust, slp lid, bored polished throttle body, throttle body by pass, some other free mods, jegster lower control arms. best ET 12.7@112mph Heads/Cam in future
So you still have the same diameter opening/blade? I would think this isn't worthwhile, the only thing that will increase is a VERY negligible amount of velocity, and you wouldn't notice it.
yea without changing the diameter all the way through and actually having to get a bigger throttle plate. i dont see how u can really notice that...
Well it must be in my mind then. More air will still get in faster same volume. I gained 4 rwhp believe it or not on my trans am by porting and polishing.
02 Cavalier Z24- Free CAI I made, magnaflow muffler
02 Trans am ws6 - Pace setter long tube headers, off road y-pipe,magnaflow exhaust, slp lid, bored polished throttle body, throttle body by pass, some other free mods, jegster lower control arms. best ET 12.7@112mph Heads/Cam in future
4 HP out of a LS1.......
De-screening the MAF does more then that.....
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08