tyler745

Has anyone got rid of the choke system and the first set of plates in the throttle body? If so what was the result/gains?

oakback

It's not a "choke system", but many people have done the "throttle body mod". I did it on my old car (S4 n/a), result for me was crappy idle, and some very slight increase in throttle response, slight enough that it may have been my imagination.

tyler745

ok well " throttle body mod " rather,This is a car that will only be driven in the summer, So i don't think warming up will be a big issue.

arghx

iTrader: (3)

Are you referring to the removal of the No. 2 secondary throttle plates? Bypassing the coolant hose and disabling the fast idle system? What are you talking about here

tyler745

I took off the first set of lower throttle blades.

funkjaw

iTrader: (3)

Don't do it... all you'll get is idle problems and no increase in HP.

tyler745

I already did it. if I dont like it i'll put it back

ScrapFC

iTrader: (5)

I have done the throttle plate removal in all my cars and have been very pleased with it. On my old GXL, I really went nuts and profiled EVERYTHING in the TB. There was a very noticeable difference in both power and response. On my current base model I just yanked out the throttle shaft and butterflies, then did some basic smoothing. It seems nearly the same improvement.

I left the thermowax assembly connected, so no cold idle issues.

I removed the throttle damper as well. Quicker throttle closing means faster upshifts. The downside is that now I get a little pop when I snap the throttle shut.

tyler745

tyler745

any more comments?

oakback

"If I don't like it I'll put it back."

What did you use to fill the holes with, that you can take back out? I can't tell from the pics.

fidelity101

iTrader: (11)

I hope you don't use that tape when you're running the engine.

Aaron Cake

iTrader: (1)

On a properly working NA, removal of the tertiary throttle plates will have no effect. They are held open via a spring, and closed via engine vacuum only when cold.

On a TII, because the tertiary throttle plates are vacuum delayed, removal does help with more crisp throttle response but can also cause a stumble when going from low throttle to high throttle. No power increase in either case.