E46Fanatics - View Single Post - Throttle Body Size (post b30 manifold swap)
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Old 06-27-2012, 01:07 AM   #91
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Join Date: May 2008
Location: San Francisco, CA
Posts: 171
My Ride: 2000 323i
Thats crazy! Hmmm... I wonder why Alpina chose to stick with that anemic throttle body? Maybe its different for FI applications.

I remember watching some 'pimp my ride' knock off video where this guy got his e46 330 boosted. They threw in the HPF kit with all sorts of random performance goodies. One of the things they did was swap out the stock DISA manifold for one off an e36 M52B28. The tech putting it in said that the DISA valve was much better for NA applications, but generally the engines performed significantly better with a standard intake manifold. Perhaps a larger TB is counterproductive in a FI application...

Originally Posted by TerraPhantm View Post
Hey Alex - I found a parts catalogue for the Alpina B3 3.3: http://www.thealpinaregister.com/dow...e46%20b333.pdf

Guess what - it used the same throttle body as the M52TUs during the MS42 run. When they switched to the MS43, they stuck the throttle body from the V8 BMWs in there.
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