Tootothed pulley and belt.
 

I know that I am getting a good amount of slippage at high RPM's with the stock pulley and removed air pump . I cant use one of the fancy add on additional pulley kits 'cause my turbo sits where the air pump used to be . I was wondering if there is an aftermarket coged (with teeth on them) water pump pulley and belt combo available for the FD .:confused:

?

Do you have enough room to set up something like this?

https://www.rx7club.com/showthread.p...ulley+solution

If you're not worrying about running any accessories and the noise from the belt, you could try to bolt on one of these:

http://www.tweakit.net/shop/product_...roducts_id=430

They only refer to 1st and 2nd gen kits though.

There should be enough roon to fit something like a greddy or gotham pulley kit. All they consist of is an larger water pump pulley and alternator pulley to provide more belt contact.