I would like to upgrade the brakes/rotors on my 1990 Si. I was told to use 90-93 Integra rotors/brakes for a bigger, but oem(cheaper) rotor upgrade. I was then told those were not bigger but the same size. Does anyone know if I can upgrade my rotor size with out going to aftermarket units and if not what are some you would reccomend thanks.

 

We are still using the stock size rotors on our ITA race car (required for the class) with no problems. I did elect to use Brembo blanks and AEM/Nissin pads for track days. Race pads will be more agressive. The brakes work fine on high speed circuits such as Watkins Glen and Pocono's Long Course. This has been my experience with 2 different cars (the CRX and Prelude). They also performed well at BeaveRun.
There are other options and I'm sure someone will offer one.

 

i agree with jc, but cheap autozone rotors are going to do you fine, works for racing too.

 

Just get brembo blanks and upgrade your pads, i like my hawp hps made a big difference. You could also upgrade your master cylinder and booster.

 

best thing I ever did was upgrade to a 90-93 integra master cylinder and booster, even with everything else stock there was a huge difference and I never locked em up during hard braking.

 

MAKE SURE THE STOCK ROTORS HAVE A SMOOTH SURFACE AND UPGRADE THE PADS, HAWK BLUE COMPOUND, GOOD STUFF

 

a god pad should make the biggest difference, but ive already done everything else- im going with 90 civic EX rotors in the front so i dont tear up rotors so fast

 

For more braking power, upgrade these items in this order:

1. Tires
2. Pads
3. Fluid

For a better pedal feel, try replacing or upgrading your master cylinder, and using braided stainless steel lines.

Larger rotors won't do much of anything unless you're still having problems with fade after upgrading all of the above. Sticking with your stock rotor size - which is sufficient for your car under all but the most extreme circumstances - will not only save you time and money in many ways, but will also keep your unsprung weight down.

And stick with blank rotors. Fancy cross-drilled and/or slotted rotors do absolutely nothing other than crack sooner - not to mention they cost more. But I guess they "look cool."

 

I just replaced my oem rubber brake lines with SS Braided lines and Ford heavy duty dot 3 fluid and the improvements were very substantial. Everything else in the brakes are stock.

90si