Will adjusting my TPS at closed throttle to a higher voltage (eg. 0.8V) improve my throttle response? My TPS was at 0.8V initially when I bought my car, but now after adjusting it to the correct voltage of 0.5V, throttle response seems to have dropped. What is the downside other than a CEL?

 

No.

The voltage does not affect how quickly the throttle plate opens. The only way you can increase response is by increasing the charge of air as soon as you open the butterfly. A velocity stack is the cheapest option, with individual throttlebodies being a more expensive one.

 

Is J's racing intake sort of a velocity stack design? Don't think I will be going for Individual throttles.

 

get some aftermarket camshafts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">Is J's racing intake sort of a velocity stack design? Don't think I will be going for Individual throttles.</TD></TR></TABLE>

No, a velocity stack is a straight piece of pipe with a tapered/curved trumpet type opeing. J's intake is a bif fat curved pipe which acts like a resevoir for air.

 

"A velocity stack is the cheapest option, with individual throttlebodies being a more expensive one."

I was trying to find out what's the cheaper option that 92TypeR dude was refering to.