Thread: 335 vs rx7
View Single Post
      11-17-2012, 11:07 PM   #15
brusk's Avatar
Drives: 2008 135i Coupe
Join Date: Jan 2012
Location: Cleveland, TN

Posts: 530
iTrader: (1)

Originally Posted by Eric335 View Post

RX7s are nice little cars. The rotary engine in the RX8 always baffled me. Can you even "build" a rotary engine? You cant like bore/cam/headwork a rotary engine, right? Seems like they were trying to be clever, and it fell on their face...
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.
2008 135i - Cobb AP, MS DP's, Berk street exhaust, AMS IC, BMS DCI, CDV delete, Quaife LSD, M3 control arms, M3 rear SF bushings, SS brake lines.
brusk is offline  
Reply With Quote