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Old 04 Jan 2005, 12:14 am
proxeyed proxeyed is offline
Young Cruiser
 
Join Date: Jan 2004
Location: San Fernando Valley, California, USA.
Posts: 69
Default Throttle Body Bore

Just curious on what size I should bore my spare TB to. I have the 5-speed, so I think that means that it is currently 48mm in diameter. I heard of buying 55mm TB's from AFX or howell automotive. Should I bore larger than 55mm, or would that just be a waste? Does anybody know of a place to bore one out instead of Howell or Bob Stockum? I just installed my K&N FIPK today and it sounds awesome. I am looking for ways to add some added power, and I am going to a muffler shop tommorow to see what kind of a job they can do for me as far as a dynomax or some other custom system. My biggest worry is the drone of my 5-speed where 65 mph is already around 3000 RPM. Anyway to get back to subject, is boring the TB another good way to pick up some HP and some torque?
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