I have a 2001 GT manual and just put my first mod on it. It was a AEM cold air intake. After putting it on I felt the power go up in top speed but my trottle response feels worse? Did I do anything wrong or is it time for a throttle body and plenum?

Thanks

 

check your tps. it may have been loose and you jolted it w/ your hand when you put the piping from the intake onto the tb. if its not that......id say its the intake. i put my BBK fenderwell mount on, and felt a MAJOR increase from idle-wot and all the way in between.

 

try diconnecting the negative battery cable for about 10 minutes to let the ECU reset it's memory and see if this doesnt' help out some.

 

Whats a tps and what does tb stand for?

 

tb is throttle body. not sure about the tps.

 

TPS is "throttle position sensor" it's attached to the throttle shaft and is a variable resistor which varies the output voltage signal as the throttle moves from open to closed and sends this signal to the ECU which used is to control the engine functions.

 

Will a throttle body and plenum make me have better throttle response? what brand do you guys perfer? and how much HP will this add?

 

Best performing throttle body and plenum combo is the Accufab 70mm and Accufab Polished plenum combo available from www.mustangtuning.com They are expensive though, so if you want to make almost the same amout of power, get the Trick Flow plenum and bbk 70mm throttle body from www.summitracing.com

 

What's the difference between the 70mm and 75mm TB? Power?