i have an 86 gxl with a blown engine
can i take the short block from a s4 turbo and use it in my N/A im not converting it to turbo i just want my rex to run again.

 

The s4 has lower compression rotors. The swap wont work.

Jarrett

 

Not to mention the manifolds won't work, and you'll run into problems with the front cover having an extra oil return feed from the turbo that won't exist anymore, as well as you can kiss passing emissions goodbye.

 

so if i rebuild the the 86 myself what is the lowest price i can do it for.(cheap rebuild kit?)
the rear rotar apex seals are the problem no comression.

 

whats the mileage on the motor?

 

Hey man, dont listen to these guys. LoL.. the swap WILL work.. but you'll be alot slower. Id say get the rest of the turbo ****, and make it turbo, or, grind out your lower N/A manifold to fit the intake ports on the TII block and make an adaptor plate. that is if this motor is dirt cheap and you need wheels fast. But on that rebuild, check some places such as Atkinsrotary.com and mazdatrix.com for some rebuild kits and so on (if you are serious about this rebuild, get the Atkins Rebuild Video, i hear its jam packed with great information). You need at least the "seal kit" (with coolant seals, oil control ring rubbers and the like). Im going to tell you right now, since you blew the rear rotor you are looking at a good bit of money for another rotor housings, another rotor, and possibly intermediate and end housings. Best bet would be to go to the junk yard (like a pick and pull type place) and get a core motor for less than 200 bucks for parts, take both the motors apart and peice together a good one. Get 2pc apex seals (mazda seals are expensive as ****). The parts you dont need to replace usually are the apex seal springs, the oil control ring metals, the side seals, and sideseal springs and a few more. BUT i WOULD spec them to make sure, but ive never heard of any being out of spec. Good luck my man, and PM me if you have any questions about this post. Another thing, if you want to get your motor rebuilt ask the forum Red-Neck Kevin, at www.rotaryresurrection.com . Bullshit with him a little bit and he'll work with you and what you have to get you going, he's a good guy.

Good luck,
Charles

 

the engine has 70k on it
roy sent you a pm