Hey, i was wondering if anyone knows what the largest diameter rotor that will fit stock calipers. I want some more braking power.

 

You might check for better brake pads first. The pad material is what is going to help with improving brake response.

Generally it is not easy to change the diameter of the rotor without changing to a larger brake caliper. Stock calipers are designed to fit stock rotors. Changing rotors doesn't do that much if the diameter (mass) remains the same.

While a big brake kit would be noticably better than stock you can also upgrade to stainless steel brake lines, change to upgraded brake fluid (higher boiling point) and change the pads to something that can handle a little more heat- good for street and light track use.

 

you can fit 286mm rotors with a caliper relocator kit. A bigger rotor sets the caliper farther from the center of the rotor which increases its "grasping" powers

 

Problem with the "Bigger Rotor" is that you will add Unsprung Weight. Unsprung weight is the weight that the engine has to move. if you are thinking of weight reduction, one pound loss on each wheel may benefit you more than 10 pounds on a CF Hood. The reason being is the engine has to move the flywheel.. then the axles, then the wheels. Why do people get lighter flywheels and axles is the same reason why you should get lighter wheels and brakes: More power to the wheels.

The others are right, go for brake lines, fluid, and pads before you mess with the rotor. Bigger, Slotted, and Drilled Rotors does not mean that you will stop "faster". Infact in most cases you will stop slower. The main reason why people do this is because they drive on a Track where they have to brake hard repeatedly. Thus your brake rotors get very hot.

the Drilled and Slotted are meant to dissapate the heat. So unless your brakes are at that heat range, you will not stop "faster". infact if its a cold morning and you got those big/slotted/drilled rotors, you'll actually stop slower.

 

Check out fastbrakes.com ive seen that they have a lot of options for the fit.

 

MiniFit is absolutely correct. Larger rotors don't necessarily add braking power. Better pads, such as Hawk or Performance Friction higher grades.
With a little backplate grinding - not on length - the pads for 91 CRX si work wonders on the street and on track.

 

you can also use any base rsx pads. they are the same caliper