What is the stock throttle body inlet diameter for a GSR?

 

62 mm i do believe

 

so a bored tb to 64mm wouldn't change much then?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IN VTEC &raquo;</TD></TR><TR><TD CLASS="quote">GS-R Throttle Body
2.635" Inlet OD
2.714" Inlet Lip OD
2.368" = 60.1mm Throttle Plate OD
2.397" Outlet ID

All measurements were made with a dial caliper precise to .001".
</TD></TR></TABLE>

 

So would a 13% increase in intake area be worth $100?

 

I have a 64mm bore throttle....no difference but every little thing will help....

 

stock GS-R, SiR-II, 92+ LS, and CRV is 60mm. and if you visit maxbore.com i think it is, he can do you for +4mm. in that case it's 12.2% increase. just FYI, you can go a long way just doing a nice smooth venturi before the plate. like make the entrance large and slowly blend it down into the 60mm throttle.

PS: 60mm is the plate size. the inlet end is like 62mm, but the plate is only 60mm.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95lstegman &raquo;</TD></TR><TR><TD CLASS="quote">and if you visit maxbore.com i think it is, he can do you for +4mm. </TD></TR></TABLE>

Jorge just did mine, excellent work.