Tell me about the E30Zone BBTB

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

Moderator: martauto

Jordan
E30 Zone Newbie
E30 Zone Newbie
Posts: 117
Joined: Sat Jan 22, 2005 11:00 pm
Location: Houston, TX USA

Post Mon Dec 26, 2005 2:37 am

I see alot of people here ranting about how great they are, but no one seems to have any genuine numbers?

Who has them?
What else is done to your m20?
Did you feel a genuine gain?
Do you have a before/after dyno?

Any pictures of the item (store lacks pictures)
Any pictures comparing it to the stock one?

What is TB bored out to (diameter in MM)
Any modification to the throttle plate stem?

Anyone want to hook me up with one? :cool:
HartgeH27
E30 Zone Team Member
E30 Zone Team Member
Posts: 21737
Joined: Mon Dec 20, 2004 11:00 pm
Location: Chichester

Post Mon Dec 26, 2005 9:03 am

Jordan
The guy to ask is Ian, his email is ...................

alpina527@aol.com
MONSPORT42
E30 Zone Regular
E30 Zone Regular
Posts: 506
Joined: Mon Jan 10, 2005 11:00 pm
Location: Portsmouth

Post Mon Dec 26, 2005 9:45 pm

There's a dyno before & after on the FAQs. I also took these pics standard and the bigger one
Image
Just dug out the before & after dyno printout
Image
Image
YOUR LEFT FOOT'S FOR BRAKING
Jordan
E30 Zone Newbie
E30 Zone Newbie
Posts: 117
Joined: Sat Jan 22, 2005 11:00 pm
Location: Houston, TX USA

Post Mon Dec 26, 2005 11:51 pm

Thanks, exactly what I was looking for.

Do you know how many MM larger the BBTB bore is?
Dan318-is
Married to the E30 Zone
Married to the E30 Zone
Posts: 8006
Joined: Wed Jul 06, 2005 11:00 pm
Location: Surrey/London

Post Tue Dec 27, 2005 2:19 am

on an m42 lump its bored 6mm on the bottom butterfly

m20s only have a single one so not sure might be the same?

ps dude i read your website thing about your car? im tryuly flabergasted, what a sublime motor! congratulations