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Throttle Responce

1.9K views 29 replies 19 participants last post by  Giveen  
#1 ·
my throttle responce freakin sucks on my 00 focus. any easy, simeple, and cheap way of fixing this?
 
#8 ·
so get a new throttle body will solve this problem, so what is the new one got mine doesnt? other than its bigger, can i make the one i got work better? or is porting all i can do to help that out. but i thought i read somewhere that even if you port the one it comes with it still has poor throttle responce? is this true?
 
#9 ·
Porting it involves shaving the interior of the stock to make it larger.

The larger the hole, the more air it sucks in, the faster the engine response.
Aftermarket TB are 65mm while stock is like 50(ish)mm, big difference, you will notice how big they look compared to stock. And trust us, when you put a 65mm tb on, you will have to re-learn how to press your gas pedel. Response time is a lot faster.
 
#18 ·
Between the Underdrive, Ported TB and Solid Rear Mount it made a nice difference. You are looking at some low cost mods to make your car alot nicer to drive.
 
#23 ·
my FC came with very good instructions i was impressed i just didnt like the functionality of the tb from fc im prolly going to go with BBK in the future
 
#24 ·
Install the parts listed in my signature. No intake manifold or throttle body changes required. I guarantee you will like the throttle response.