Ford Focus Forum, Ford Focus ST Forum - View Single Post - Throttle Body Comparison
View Single Post
Old 11-30-2011, 02:01 PM   #25
blackjack
Focus Addict
 
Join Date: Oct 2009
Fan#: 69988
Location: Socal & Portland, OR
What I Drive: Black 03 SVT

Posts: 994
FF Reputation: 2 blackjack Good Standing Member
Buy-Sell-Trade Rating: (22)
Quote:
Originally Posted by iminhell View Post
BBK is 1mm larger than stock, CFM is 2mm larger.
If that convinces you to spend $250 so be it. I don't think it's worth it.

Stock: 20.5735 in^2
BBK: 21.2114 in^2 (0.6379 in^2 larger than stock)
CFM: 21.8591 in^2 (0.6477 in^2 larger than BBK)
I don't see how this can be....

I remember when I had my old FC 65mm TB, my stock SVTF TB would actually fit inside the the FC 65mm TB. I wish I took a pic to show it.

As for the OP, I have only seen one a normal zetec BBK TB, the outsides of it isn't as smooth as the FC or CFM ones. But it worked perfect like the others. Find someone with a Powerworks SC kit installed. I think some of those kits came with a larger BBK TB.

But TurboTom is correct, i liked how everyone ignored him. A bigger TB will not yield HP gains, just better throttle response and a stiffer gas pedal due to the stiffer spring on the new TB. Porting the stock TB would be the more economical move or find one used...
blackjack is offline  
    Reply With Quote