I am getting ready to purchase a Mazda Racing Pulley kit for my 87 rx-7. just wondering if anyone has one and if so, is it worth purchasing and what kind of performance gains are there.

 

Performance gains are as follows.

+1hp for removing accessories
Do not have to worry about belt slippage anymore with waterpump+removed accessories
Looks cool.

Also on top of that, do NOT buy it. They will take your money, and you will get air particles in return. Pay them money, for air, not a pulley set.

There is a much better one that you can buy in wich they will take your money and actually give you a pulley set

http://www.tweakit.net/shop/product_...roducts_id=103

 

Does that other pulley kit work for my non-turbo Series 4 rx-7?

 

yes, it should work fine. The turbo/na pulleys are identical as far as I know. I believe that they are interchangable too from S4-S5 as well. Should be anyways..

seriously though, the mazdaracing pulley kit that I believe your talking about is sold by a bunch of con-men. Unless your going to go down there personally and go up to a counter, and see the kit for yourself, don't give them a dime. Do a search for 'mazdaracing' in the 'good guy/bad guy' forum. You'll see what im talking about..

 

Whats so good bought the gilmer pulley kit?

 

Look at it! It has cogs in the pulley, it looks ******* awesome.

Any confirmation on S5/S4 pulley compatibility?

 

Haha!