anyone know where i can get info on how to install a j-spec cosmo 20b into a 93 rx7?

try any good rotor shop they should tell you more
its not that hard time is the most important thing to do thing propley
good luck

Its not that hard? That's why pettit racing charges about 30g's to do it.

Bah, any engine swap is as expensive/hard as you want to make it. The difficulty is in getting the 20B, as I have come to understand it. This can present a fair challenge. Other than that, it fits, and it they can both use the same aftermarket clutches I think.

Bah, any engine swap is as expensive/hard as you want to make it. The difficulty is in getting the 20B, as I have come to understand it. This can present a fair challenge. Other than that, it fits, and it they can both use the same aftermarket clutches I think.

Getting one isnt that hard. I have come across a few, try www.rotaryextreme.com
As far as fiting, that is the problem, it doesnt fit. Thats why you have to cut the firewall and modify the driveshaft, among other things. You just cant take it and drop it in with some custom mounts or somthing along those lines. Sorry it just isnt that easy, if it was I would have already done it;) I do know that it is easier on the FC than on the FD though. Good luck. I may try one day but I am happy with what I got for now:D