What' the most you can bore out a B16A throttle body? I was told 63mm anyone here different?

 

64-66mm is the limit

 

how is it done?

 

My god I hope this question doens't mean you are going to attempt to do it yourself!? Have a profesional machine shop do it if you are going to have it done, or just buy a bored out TB. The machine shop down the street from my work bores em out for mustanges, they have a cutting tool like a little arm on the end of a rod that they center in the intake opening and mill the TB out to the desired size. Then they machine a new TB plate out of titanium to replace the old one.

 

You say they make a new throttle plate for it which I understand. Do they need to also make a new throttle shaft to hold the new plate? Or do they use the original one?


Modified by Bizarre at 8:09 PM 11/13/2003

 

Or if you can find one, Ive heard the GSR TB is like 66 or 68mm, and is a direct bolt on I believe.

 

No, the GSR tb is 60mm just like the B16a2. The maximum is 64-65mm overbore

 

talkin about throttle bodies.,my friend can port throttle bodies and the intake manifold.
does it great.
$200

 

Sorry for the o-t question but does anyone know the name of the guy here on H-t that does throttle body boring? I did a ton of searches but still couldnt find him.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itec311 &raquo;</TD></TR><TR><TD CLASS="quote">Sorry for the o-t question but does anyone know the name of the guy here on H-t that does throttle body boring? I did a ton of searches but still couldnt find him.</TD></TR></TABLE>

just take it to a local machine shop, probably cost you around $50 at the most