Rx8 tuning help

GySgtFrank · 09-18-2013, 04:16 PM

Turboing a Renesis engine, especially with 10:1 compression is a really bad idea. The Renesis is not designed for and not strong enough for it. Detonation is as much, if not more, of a killer for rotarys as it is for piston engines. The only way it can be done safely is with massive amounts of water/meth injection and a high end ECU with an incredibly good tune. If you're putting that kind of money in it anyway, going with an REW and the ECU would make more sense. That is not easy either as there are compatibility issues with the 8s electronics.

I'm not a fan of doing much port work on anything, but the NA will benefit from it more than the turbo will. The turbo can overcome combustion filling problems with boost and changing the port timing has the same effects, as what you stated you don't like, on both of them. Check out some of RiceRacing's posts on this as well as others. You may get some gains, but there are tradeoffs. Whether or not to do porting really depends on what you're trying to accomplish.

09-18-2013, 04:16 PM	#1
GySgtFrank Professional Stick Poker Join Date: Feb 2011 Location: Stafford, Ks. Posts: 1,015 Rep Power: 16	Turboing a Renesis engine, especially with 10:1 compression is a really bad idea. The Renesis is not designed for and not strong enough for it. Detonation is as much, if not more, of a killer for rotarys as it is for piston engines. The only way it can be done safely is with massive amounts of water/meth injection and a high end ECU with an incredibly good tune. If you're putting that kind of money in it anyway, going with an REW and the ECU would make more sense. That is not easy either as there are compatibility issues with the 8s electronics. I'm not a fan of doing much port work on anything, but the NA will benefit from it more than the turbo will. The turbo can overcome combustion filling problems with boost and changing the port timing has the same effects, as what you stated you don't like, on both of them. Check out some of RiceRacing's posts on this as well as others. You may get some gains, but there are tradeoffs. Whether or not to do porting really depends on what you're trying to accomplish. __________________ 1988 N/A SE 2+2, dead stock and staying that way. 1979 SA22C stock? Not so much. http://rotarycarclub.com/rotary_foru...ad.php?t=15585