Hey everyone. I’ve always been into v8s and other odd engine configurations. I’ve got my experience with building an engine and everything else that comes with rebuilding a car itself for performance.

To cut to the chase, I’ve got a Pontiac Firebird, a big and loud v8. Just a standard Chevy guy. I wanted to get into something in the other side of the spectrum so I recently acquired a rx7 1992 roller, no engine and transmission. I was hoping I could be pointed in the right direction for building up a new rotary. Honestly not sure if all the parts I’d need or if it’s just better to buy a crate motor.

Thanks.

 

Welcome to the forum!! Would love to see pictures of the car! We can hp you get the car back up and running. For reference, there was never a 1992 model year RX-7 produced. Mazda just sold the 1991 model year cars well into 1992 as they released the 1993 RX-7 in 1992. I'm curious if you have a 91 or a 93. Also, im a Corvette guy as well. Have had several over the years and still have a low mileage one that I really enjoy. I love my American V8 as much as I love my rotaries!

 

Oh wow that’s pretty odd. Never heard of a company doing that before. That was actually just a mistype, I had to re write that four times because I kept loosing connection to the server or something was going wrong. It’s actually the 1991.

I’m just curious if I’d be able to build a performance rotary or just have to straight buy one. Excited to get it running. I’m hoping to get 600 hp out of what ever rotary I get. Not sure how limited on power they are.

 

Welcome to forum

 

You can build the engine you have to make more power. But to make that kind of power, you're looking at some heavy porting and forced induction.

 

I mean obviously forced induction would be needed. Just where could you ever get the parts to make a stronger motor ? I guess the equivalent of a stronger block, rotors and crank.

 

many high hp engines are machined for 2 more dowel pins and upgraded to larger tension bolts for strengthening the keg.

 

welcome to the board.

aftermarket side housings, rotors and shafts are available from a few places around the world.

for the type of power you're seeking (and i'm a little curious why), you don't need them though. you can do it with new or "good-condition" OEM parts. you'll probably want to start with an REW block and take it from there. once you get the engine in the car and wired up to work, it's a matter of choosing the right parts you need for your goal.

that said, my unsolicited advice to a new Rx-7 owner in your position (with a non-functional car) would be to put the car together and drive it first. feel it out, and see if it's for you. yes, you have your experiences building other things, but while many things will translate directly, some things will not. i know it's your time and your dime, but i just think it needs to be said.