Discussion in 'The Garage' started by 1979jimmy350, Jan 19, 2007.
look at this link, brake rotors made of aluminum
Ah, they are steel clad. No doubt remainder aluminum to save rotational and unsprung weight, and perhaps heat dissipation.
Pretty sure these hve been in development for a long time but they cant keep them from warping
Auminum rotors and drums were optional on several HP cars. Alpha Romeo's had aluminum drums in 59 I believe it was. Just for less rotating weight as well as overall weight.
I had a '63 Alpha coupe. Yep, huge Aly drums, front and back, and steel lined. Bitchen brakes too. Three shoes, fins; filled-up the whole backside of the 15" wheels. The car weighed only 1600 lbs. too.
Yeah when I first pulled the wheels on one I couldn't believe how big those drums where.
Those same years, the Lotus Elan had 4 wheel discs with vaccuum boost under a 1300 lbs. car. You could plant your fillings on the windshield.
As did various GM cars in the late 70's/80's
Both my '66 Buick Wildcat and '66 Electra 225 I had years ago,were factory equipped with finned aluminum brake drums ,with cast iron inserts inside where the brake shoes ride,on all 4 wheels..they warped real easy--one good puddle after a long downhill grade,and you could warp the drums!..
I must have turned them on both cars at least twice..a few days later,they still felt like eggs!...I think GM gave up on them,never saw any on later years..
Nah, I have a couple sets for my 80's Cutlass. Assume it was all about CAFE at that point, as they were the same 7.5" used in the small trucks, and those didn't get aluminum drums.
A bit off topic,...steel clad brake rotors don't sound like they'd stand up to much more than about one race. They've done the same thing with flywheels obviously, but the larger surface area is probably a large factor in how well they hold up.
"This website has been cancelled."
The thing about aluminum rotors is that there is no Thermal Mass there. W/o that the brakes will not work as good. A big part of why those A-R alum drums were so big was b/c of this. Same with the fabled "Alfin" brakes of old. Aluminum is a great thermal conductor, but w/o the mass you loose part of the braking equation.
Some Sprint Cars use an aluminum rotor. The rules require a front brake.
Try carbon fiber rotors on an 8000 HP dragster.
lol thats funny, the school must have found out the the kid was using his school email address to make money and using a desgine the the school holds the pattent for
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