Larger TB for M20B25

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

Moderator: martauto

kam-325i
E30 Zone Team Member
E30 Zone Team Member
Posts: 4851
Joined: Tue Sep 27, 2005 11:00 pm
Location: TELFORD !!!! (Shropshire) Stevetigger Land !!!

Post Thu Oct 27, 2005 12:09 pm

Is there such a thing ?
E30BeemerLad
Married to the E30 Zone
Married to the E30 Zone
Posts: 16806
Joined: Mon Mar 28, 2005 11:00 pm
Location: Norfolk

Post Thu Oct 27, 2005 12:27 pm

yes mate, the Big Bore throttle Body (BBTB), you can get them from the zone shop, about Ԛ£120 exchange. They are bored out.

Ask Sal (M5Pilot) for more details a few zoners have them fitted and I'm sure they have commented on an improvement

Don't think you can just get away with fitting a tb from a M30 engine but I may be wrong/or it doesn't make any difference.
kam-325i
E30 Zone Team Member
E30 Zone Team Member
Posts: 4851
Joined: Tue Sep 27, 2005 11:00 pm
Location: TELFORD !!!! (Shropshire) Stevetigger Land !!!

Post Thu Oct 27, 2005 12:29 pm

I would need to bore out the intake manifold (TB Side) match, right?
E30BeemerLad
Married to the E30 Zone
Married to the E30 Zone
Posts: 16806
Joined: Mon Mar 28, 2005 11:00 pm
Location: Norfolk

Post Thu Oct 27, 2005 12:33 pm

don't think so mate, it's a straight forward plug & play swap over I'm sure.

Ask Jimbob, I know he has one for sure
kam-325i
E30 Zone Team Member
E30 Zone Team Member
Posts: 4851
Joined: Tue Sep 27, 2005 11:00 pm
Location: TELFORD !!!! (Shropshire) Stevetigger Land !!!

Post Thu Oct 27, 2005 12:38 pm

cheers :cool: