Whats the deal with brake calipers? Do most calipers fits most cars? wich measurements do i need too consult? Looking for a better set of brakes for my Rx7 as ill be going up 100 maybe 150 bhp and so far i havent found any better break caliper sets than the stock ones...

 

No offence, but if you're having to ask those questions, adapting brakes from another car is most likely well beyond your capabilities. Besides, you don't want to be fooling around with brakes unless you know exactly what you're doing, not just mechanics, but design and strength calculations for the adapters.

The stock brakes are more than fine for street use even with added power. Just make sure that you've got decent pads, clean, fresh fluid (go with high temp if you're having issues) and good rotors (thin, worn rotors heat up more/faster). Don't believe people that tell you that slotted and/or drilled disks are an upgrade, they're a waste of money and are at best no better than stock discs.

What limits brakes is either their ability to provide stopping power (if you can lock your tires your brakes are strong enough), and the ability to store and disipate heat (if you're not having fade then your brakes are good enough). Big brakes on track cars are more about the second point than the first, even with bigger calipers, rotors and so on.

 

Is not that easy, you should talk with a mechanic before do something by yourself.

 

which car is is? the stock front brakes that are 4 piston will sustain a lot more power then you think...

but if youre looking for a big brake kit i know endless makes one but not sure about which others

 

You should wait til you achieve this horsepower gain and then see if/how the brakes are deficient.

 

Talk to a mechanic, a machinist and an engineer to name a few. You don't want to screw around with brakes like this without knowing for sure that it's been designed properly to work with your car and won't break, won't completely ruin the balance and so on. In the end it's likely cheaper just to buy a kit. If you insist on upgrading, look into the EVO brakes conversion for the front and the Corksport kit for the rear.

 

DO NOT upgrade the braking system yet.

instead make sure the stock system is working fine.... new pads (hawk makes great street pads) and make sure the discs are in good order ie; not warped or too thin from excessive machining.

at the very least; new discs front and rear, pads front and rear, fluid, stainless brake lines and spend a good deal bleeding the system.

once everything is ok.... make all the power you want until you feel the brakes are becoming inefficient at stopping.

also.... your tires have a major role in your braking system as well..

im sure you will never exceed the limits of the stock 4-piston brakes for the street and most autocross/track-day events.

if you have 2-piston calipers in the front, then the best upgrade is the GXL/Turbo II front brakes.

 

No, there are no 2 piston calipers, it's single piston or 4 piston.

 

I have replaced ALL break parts, down too the bolts....

 

fix your radiator first

 

We use stock 4 piston brakes with good fluid, good pads, and braided flex lines and cooling hoses to the rotors on race cars. They regularly see stops from 150mph down to about 60mph for 30-45 min sessions. The stock brakes are great with the right pads.

 

+1^. Your brakes don't care how much horsepower you have. Unless you are making the car heavier, other than speed there will be no difference in your braking performance. Follow the previous advice and you'll be fine. I just ran at Pocono with my E Production 2nd gen and was entering the braking zone on the main straight at 150 mph plus. No fade no fuss, no problems.

 

The brakes only care about the amount of energy they're asked to dissipate. In a race type situation more power inputs more energy, so you have to dissipate more energy in order to get to the same corner speeds. So in a race type situation the brakes do care about how much power you have. On the street you'll be going the same speeds anyway because that's dictated by speed limits, so there they won't care.