Throttle size?

Need technical Q/A then you're in the right place

Moderator: martauto

Turbo-Brown
Boost Junkie
Posts: 4705
Joined: Tue Feb 15, 2005 11:00 pm
Location: Aldershot, Hants

Post Tue Mar 15, 2005 1:51 pm

I'm in the process of making up some direct to head throttle bodies for my turbo conversion on the 325i.

Does anyone have any thoughts on what size I should make the throttles? As far as I know, 40mm dia is more than enough for 50bhp(ish) per cylinder so over 6 cylinders that's 300bhp which I'd imagine to be enough for anybody.

Any ideas chaps?