My car will mostly be a street car but it will see some road racing events as well. I'd like to hear from anybody who has switched over from the 1 piece rotors to the 2 piece rotors. Did you feel a SOTP difference? Performance is going to be the biggest thing for me. I do know they look sweet and offer much more eye appeal over the cast 1 piece, but I don't want to drop $200 per rotor just for that, when I have 1 pieces right now that work fine.

I have the 13" Baer brakes Track kit in the front, and the 12" Baer Touring kit for the rear.

Thanks

 

I'm looking at getting the same front/rear setup in the next few weeks, and running with a set of 5-spoke 17" SS wheels. How do you like 'em? would you get the Baer's again or go with one of the cheaper alternatives some of these guys are using? This will be a mostly track car.

thanks for the opinion

 

From first hand knowledge on them, I can tell you definately that there is not stopping power difference between 1pc rotors and 2pc rotors. Diameter increase-Yes, caliper increase-Yes, 1c compared to 2pc- No.

Fade on the other hand will "slightly" be reduced due to better heat distribution of the aluminum hats.

The main benefit to 2pc rotors is less unsprung weight for better ride quality and handling. I dropped 4 #'s off each side of the car with my entire setup (1POT iron calipers,10.5"x1" 1pc rotors-to- 6POT aluminum calipers. alum hubs, 2pc 13x1.25" rotors)

The picture below shows weight comparison of a worn out lightweight aftermarket 10.5 setup. New stock componants are minimum .5lbs heavier. Those rotors are turned to min tolerances and the pads are completely worn- plus the rotors are drilled for lightness.

 

Thanks a lot for that reply, that was what I was looking for.

Since you say that the benefit from 2pc rotors comes from unsprung weight, is this somthing I will notice a SOTP difference from? or one of the every little bit helps mods? I just want to figure out if this is a good place to spend $800 doing this on all 4 corners, or maybe do a carbon fiber driveshaft before this.

In the end it will all get the best but I just want to go with the parts that will give me the best SOTP difference first.