So I'm rebuilding my old rx8's engine for the now owner and during the teardown process, I removed the alt and was walking by my other 12A project and thought "why not"...



It would appear you could make it work. I have to find out what the output is of the RX8 alt, but it does fit and seem pretty straight forward.



I have blog with the pics:



http://one320b.blogspot.com/



It seems with some minor shaving of the bolt spacer and probably shift the alt harness around a little, it would work. Naturally you would also need to swap the pulley out - but thats a gimme and not a big deal. When I finish the renesis rebuild, I plan on picking up an rx8 alt for when i build my 12A... maybe i'll try it on the car first (it's running w/ a stock engine right now).



Either way, any thoughts on this??

 

i see no reason it wouldnt work. they just came out with a reman number too, so its not $463 anymore



you need to double check, but i suspect its wired like the FD

 

Unfortunately I dont have an FD alt laying around to verify - but it looks like it is.



Do you know what the output is of the rx8 alt vs an FD? I would imagine it's more...

 

epc doesnt say, and i dont remember, i wanna say about 130amps?