ok i have a 87 Rx7 NA that the rear rotor suck the big one. but it still runs and idle is at 1500 then i used some power foam and it runs at 1100 and sounds alot better and stronger. so any ways do you think it might be the fact that one of the apex seals is stuck??? or what do you think.

 

Did you do a compression check on the rear rotor??????

 

did it and its real low

 

I had a similiar situation. My car idled fine, but NO power. I tried the power foam trick , no big diff. That engine is now sitting in my carport ready to be parted out. I'm putting in a Jspec turbo engine. I would think your engine is gone too. You can either rebuilt it, keep trying to get it to run, or replace the engine. If you want to keep trying to get it running correctly(assuming it's carbon lock), you can try the ATF trick(let it sit for a day or two) or you can try using water.......