NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   12a Power Estimate & tips (https://www.nopistons.com/performance-mods-20/12a-power-estimate-tips-74758/)

12a-Bug 10-13-2010 09:36 AM

Hey people. I just got a 12a for my bug with a streetport, racing beat intake for a holley, and a holley 600. When i drop it in, it will have a pretty free flowing exhaust. How much HP should I be getting out of this motor? Ive been told around 150 some have said about 200. Im not really sure since im new to the rotary scene.





Aside that, anyone have some tips to offer? You know, those old rotary tricks. The guy I bought it from has these spark plugs that look like lawnmower plugs. He also said to use 2 diff plug styles (i forgot whcih he mentioned) for trailing and leading. Any info would be good

fc3sboy1 10-15-2010 08:45 AM

depends on who ported the motor, what type of "street port" it is and the holley wont make as much power as a webber. id say 150bhp is pushing on the high end. we have done some road race 12as with street porting that make 180 to 190bhp.

12a-Bug 01-07-2011 07:32 AM

Well, 150 is what im aiming for. Either way, im going to be dropping a 125 shot in there. Hopefully, Ill be turboing it as well, but the turbo is in a lonngg while

Crispin38 02-19-2011 10:46 PM

Depending on the SP it will be at least 150hp to the flywheel with open exhaust, decent ignition and intake.


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