I have read the searches, but I would like to try a different angle in this project.

I have a 88 RX7 Vert N/A manual tranny with one rotor dead.

I can get a matched OEM set of rotors but for 89. I have read that this will work I just have to match the flywheel counterweights of the same 89 year.

I am not certain if I can get the 88 OEM rotors.

So, I could get an OEM RX7 motor - I actually found one. Close to $6K.

I could rebuild using just the new 89 OEM rotors or just replace the damaged seals, etc.

Can the 88 housings be used with the 89 rotors? I think so, but would like correction if wrong. Any major issues with this route?

Also, I know that there is differences in the Zenki and Kouki rotors, but normally just an issue with using the series IV in a series V and normally just an issue if they are turbo. I do not plant to go turbo, but wonder if the Series V to Series IV would be a better setup than just using the same year rotors?

I would like to decide in the next three days, so please add input and corrections and any other ideas that will get me zooming again.

Thanks,
C-CK

 

make sure both rotors are the same series and both from a NA motor. as long as you have the correct counterweight and flywheel they will work.

i wouldnt spend the money on new rotors. NA motor parts (especially s4 NA) can be had used for dirt cheap.