FB_road-machine

So I finally picked up the 85 RX7 in the salvage yard I've been watching.
Some day I want to put a 13BT in it, until that day though.
What kind of horsepower could I make out of a 12a with some simple mods, like street porting, new intake, exhaust, ignition.
or even a more aggressive port.
Would it be possible to get up to 200? or a little more?

I am sorry for not being very knowledgeable, I'm a bit new to rotory motors.

FB_road-machine

Or maybe even a turbo.

hawk 7

iTrader: (2)

Doubling the HP on a 12A would be hard without going with a turbo. It would all depend on what type of porting you decide to do and what rpm range you want to make the HP at. Just a little word of advise, I think you will get more responses if you post this in the 1st gen section. GOOD LUCK!!

FB_road-machine

Okay, Thanks Hawk.

Aaron Cake

iTrader: (1)

Keep in mind that any type of porting means the engine must be completely disassembled.

If your eventual plan is for a 13BT swap, then just drive the 12A as is and save the time/money for the swap.

Doubling the horsepower of any engine (rotary or not) is non-trivial.

j9fd3s

iTrader: (3)

exhaust picks up a lot of HP on a 12A, with a healthy engine, and free exhaust after the manifold you should be around 110RWHP

add a header and you'll be about 125rwhp

there are some mods you can do to the carb, i've never seen a dyno before and after, assume about 5-10hp

more than that, and you need to pull it apart and port

FB_road-machine

Okay, Thank you.

t_g_farrell

iTrader: (1)

The mods in my signature yielded 134 whp on a dyno a few years ago. Thats about as good as
it gets without cracking the keg. With a correction factor of 12 % we would be talking ~150 bhp.