Anyone know a good brand of lighter rotors and aluminum hats?

Thanks!

 

What are you trying to achieve? Lower unsprung mass? Typically rotors are a bad place to look for this sort of weight reduction, as you reduce your brakes cooling capacity... At least that's what I've always read.

 

Yes, but that's for fast track cars that are driven hard. He has a fast rear end busting turbo'ed S, so he does not need the heat dissipation capacity.

 

You have a valid point

 

So you're saying that he made his car faster, so he needs to reduce his braking ability?

 

seems there was a thread like this last week.

car peeps are negative for any rotor material other than cast iron. and then only universally accept the most heavy pickup truck setup's. in comparison to sportbike riders who go the other way. think of the vehicle weight differences in both situations.

thebrakeman.com
i am sure there are alternatives here, but to make any significant change is expensive.
the 18" wheels eat up any weight savings anyways so to cram a better brake system into a oem" wheel is a ponder

 

if he's just running 1/4 miles, I can see the application.

and with regards to bikes - it's definitely cheaper and there's a whole hell of a lot mass to stop.

 

Wilwood bbk is lighter than the oem system. I guess around 30lbs. I think they are a good option.

 

Yeah I know the Wilwood's are a good option - I actually posted this thread for a fellow s2katlanta club member. I remember there being a forged aluminum rotor that came out around a year ago and I couldn't remember the name.

 

No. Braking ability is the combination of pad surface area, coeficient of friction and rotor radius. The car's speed dissipates as heat produced by friction, which has to be handled by the rotor. More mass in the rotor equals more heat dissipation capacity and resistance.

Unless he road races the car, which requires constant braking for extended periods of time, he might be able to reduce the rotor mass and still keep good one-time braking capacity. A stop from 120 in the 1/4 mile with 10 minutes cool-down breaks is not constan braking.