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Porting is the only real option for a rotary. When you port the openings in the side housings you change the mechanical timing of the engine. Porting of a rotary engine is equal to changing the cams + boring and stroking a piston driven engine. It is a very precise operation. You have a 12a or a 13b, turbo or non turbo, carbureted of fuel injected.
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I love my money pit, uhm, err, I mean my car.
1969 beetle in the works... 2.0 type 4 DTM... 
2004 Suzuki GSX-R 1000 crashed 
www.volksport.net Volksport Kfer Gruppe
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