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DISCUSSION => Engine + Driveline => Topic started by: martin347 on March 27, 2008, 09:27:30 AM

Title: Big bore throttle body???
Post by: martin347 on March 27, 2008, 09:27:30 AM

Didn't someone make one?
Or, how easy is it to diy?
I would love to use itb's but rally regs don't allow me to and my 1960cc engine could do with breathing a little easier!
Thanks, Martin.

Title: Big bore throttle body???
Post by: hoevesruperd on March 27, 2008, 09:37:04 AM

do the regulations allow TB swap? there are some other bigger bmw TB you could use.

Title: Big bore throttle body???
Post by: agreen on March 27, 2008, 10:00:28 AM

he diffrence i think you will see from fitting ones i very little i think .

They sell them i england though if needed but i really would not bother

Title: Big bore throttle body???
Post by: martin347 on March 27, 2008, 11:34:17 AM

Well I think I would get away with a different tb from another model bmw if it wasn't too obvious!
I agree that I wouldn't really notice the difference if I was just swapping the tb. But I am fitting an aftermarket ecu and want to do everything I am going to do first to avoid more expensive mapping sesions!
What tb's from other models fit?
Thanks, Martin.

Title: Big bore throttle body???
Post by: gearheadE30 on March 27, 2008, 04:27:47 PM

The stock TB is good for over 200 horses. Check out metrickmechanic.com and take a look at their resonance-tuned intake manifold and other performance parts. Parts like that are much more worth the money.