Now, I've started to save up quite a bit of money. I plan on getting a new motor for my 87' GXL N/A. The N/A motor to different RX-7 cause it's still good.
Now, I've thought about the TII cause it's an excellent motor and has lesser work than the 13b-REW. I also have seen the 20B cosmo motor being sold for cheaper than I thought. How much more work does the 20B require to fit into an S4 RX-7? Would I have to buy custom mounts and fabricate various parts everywhere?

 

there is a 20b section of the forum...might want to look there before the flame fest begins be prepared to spend $15,000+ for a 20b set up

 

We have the brackets you need to drop the engine in www.banzai-racing.com . Yes there is a bunch of custom fabrication, it would also be a great idea to swap out your N/A drivetrain as it will not hold up at all.

 

The really short answer would be: lot of money, lot of time. Well, I guess that'll come for another time... TII I guess it will be then. Thanks folks!