Is it possible to swap the 4 piston claipers into a 90 GTU? I thought that the GTU should have he 4 pistons, but the one I looked at does not.


Thanks,


alex

 

Also, is it possible to use 4-piston calipers on the rear or does it mess up proportioning?

 

yeh it easy i used the whole spindle off a turboII (same brakes) and just swaped them over and blead them 1 hour , dont know if its worth doing the back brakes but if you have them go ahead. if you do both get a turbo or gxl brake booster and resavore

 

89-91 GTU is the base model, so no 4piston calipers

88 GTU does.

Go grab a set off of any manual transmission GXL.

PaulC

 

Great thanks.

One more question,

is it a direct bolt on? or more complex?

 

Direct Swap

 

the caliper or the spindle is a dircet swap? and also will anything else need to be modified? i have an 89 gtu.

thanks

 

I have a GTUs i though it had 4 piston but the front looks like 2 is that possable

 

Direct swap for 89-91s

Little more complex for 86-88s

GTUs has 4 piston, no RX-7 came with dual piston.

PaulC

 

Great thanx for the help.

Now, after I get the car, I will get the 4 pistons and start stopping faster.

 

Thanks man i guess i need a better look

 

Don't forget the hardlines off of the 4 piston calipers, you need those too.

PaulC

 

Anyone?

 

No, you don't want to use the 4 piston calipers on the rear, 1. it would totally throw off your proportioning, and 2, most of the braking is done by the front anyway.

Hell, on my racecar, I've got a proportioning valve and had to limit rear bias to keep the back end from getting loose under hard braking.

PaulC