Guys that block under the accelerator pedal....anyone removed that?

 

Is it some kind of restrictor?

 

Dan

i always wondered what would happen if you removed it, wouldnt fancy running the throttle past its end stop though

It wont do anything.

 

There is however a metal tab on the throttle linkages, that restricts the throttle valves opening fully. A forum search for "Throttle mod" should find plenty of info on it.

here : http://www.300zx.co.uk/forums/showthread.php?t=49150&highlight=throttle+mod

 

BTW - Opinions are mixed on this.

Some say the reason the valves dont open fully is becuase of the angle the Throttle pipes enter the throttle body at, meaning the stock vale opening is at the same angle as the intake pipes for best flow.

hmm interesting reading but doesnt seem that anyone has got quantitative evidence that it does anything or not? Think i might leave this one with mr nissans technical mind and leave the screw as is...

 

(that is until someone proves that it does add power :mac1: )

tnx guys.... yeah dont think i'll play around with that then. ;)

Smithys car made more power on the dyno with it in its original position and the mixture also moved leaner and had to be corrected.

I'd guess the angle on the plates directs the air into the plenum in a way that leads to more even distribution to the runners.