NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   1st Generation F.A.Q.'s (https://www.nopistons.com/1st-generation-f-q-s-43/)
-   -   Fng... 12a, Or 440? (https://www.nopistons.com/1st-generation-f-q-s-43/fng-12a-440-a-22512/)

dewme5 08-11-2003 01:18 PM

First, I don't know anything about rotary's. I'm a V-8 guy. I have a few big blocks sitting around, so I started a project. I bought an 80 RX-7, 12a, it ran, but badly. I got it to do the conversion from the rotary, to a big block (440, .060 over, forged crank, 6-pack rods, Weiand Tunnel Ram, with twin 780cfm Holley's.) It's a tight fit, but looking at some of the info on here, the rotary seems like it could be a lot of fun. I'm no stranger to boost, and if I kept the 12a, I would certainly need to turbo charge it. But, being that it's not a pushrod motor, it's going to take a little relearning on my part.



What would it take to make an honest 300+ rwhp out of the 12a. Planning a blow thru setup on a holley carb.



Does a rotary suffer from the same sort of detonation problems as a piston motor? more likely, less likely. What are the limits of boost when using 93 octane?



Who has experimented with water injection?

Racer X 08-11-2003 08:39 PM

try asking the motor gurus in engine building section of this forum. https://www.nopistons.com/forums/pub...#>/biggrin.png Welcome to nopistons.

Hyper4mance2k 02-21-2005 10:51 PM

www.rotaryshack.com robert has made 720bhp out of his 12 turbo. 300bhp is acheivable.. And more fun than any 300hp piston would be!


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