Thread: 335 vs rx7
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      11-18-2012, 12:25 AM   #16
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Drives: 2007 E92 SG 335i 6MT
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2007 BMW 335i  [3.83]
Originally Posted by brusk View Post
There's several different port jobs you can do to a rotary depending on the level of streetability you would like. It's similar to a 2 stroke where you port a cylinder port wider would be similar to porting a head of a 4 stroke and then you can open it up or down on the intake and exhaust to change timing and overlap similar to adding a higher duration cam. Although doing this on a rotary isn't as easy. You can get a 13B to about 200HP NA with a street port and 320+ with a racing peripheral port setup. Not sure what they've gotten out of the renesis engine after porting I would guess closer to 285 but haven't heard of too many shops even touching that engine.
Seems like its not worth it Not that much power, and im sure your giving up a lot of streetability. How does forced induction work with an engine like this?