Front and Rear Rotors?
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
Originally Posted by V Vette
Can someone tell me why the front rotors are larger then the rear ones? Why cant they be the same size? Thanks! V
Bob
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
Originally Posted by beezeye
Here are a couple of night photos from Sebring this year. It looks to me like the front brakes are doing a lot more of the braking.
Bob
Bob
Advanced
Joined: Jun 2006
Posts: 71
Likes: 0
From: Chandler AZ
because front brakes DO do all the work.
On my 3/4 ton suburban, its a 97, gig 13" dia x 3" wide rear drum brakes - never changed them yet in 130,000 miles. set 6 on the front.
even the piston in the master cylinder pushes more to the front.
By the way.. i just put Baer brakes on on my C6, and now my Rear are actually Larger than the front. Because the rear caliper is smaller, it can be pushed out further, and allow a larger rotor.
if i could figure how to post a pic... i would.
On my 3/4 ton suburban, its a 97, gig 13" dia x 3" wide rear drum brakes - never changed them yet in 130,000 miles. set 6 on the front.
even the piston in the master cylinder pushes more to the front.
By the way.. i just put Baer brakes on on my C6, and now my Rear are actually Larger than the front. Because the rear caliper is smaller, it can be pushed out further, and allow a larger rotor.
if i could figure how to post a pic... i would.
Pro
Joined: Apr 2006
Posts: 745
Likes: 1
From: Denver Colorado
Originally Posted by timd38
If you get the Baer two piece rotars, the rears are larger.
Last edited by Astronomer; Jul 16, 2006 at 11:30 AM.
Le Mans Master
Joined: Aug 2005
Posts: 6,709
Likes: 1
From: Pacific Northwest
St. Jude Donor '06
Originally Posted by ModsByMarc
if i could figure how to post a pic... i would.
Race Director
Joined: Oct 2004
Posts: 10,089
Likes: 14
Originally Posted by V Vette
Can someone tell me why the front rotors are larger then the rear ones? Why cant they be the same size? Thanks! V
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Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Originally Posted by shopdog
Because the fronts have to dissipate the most heat. When stopping, weight transfers forward, so the front brakes have to carry about 70% of the braking load while the rears contribute about 30%. Ideally, the fronts should be about twice as large as the rears. That would minimize unsprung rotating weight, which helps performance and handling, while still allowing the brakes to do their jobs. But there isn't room to make the fronts much bigger, and the rears have to be large enough to accomodate the parking brake drums. So they wind up closer to the same size than would be ideal from a performance standpoint.
Race Director
Joined: Oct 2004
Posts: 10,089
Likes: 14
Originally Posted by timd38
Good point. If you have to much brake on the rear, the "unloaded" rears will tend to lock up and then you lose control.
Burning Brakes
Joined: Oct 2005
Posts: 1,131
Likes: 0
From: Dallas Texas
Originally Posted by ModsByMarc
because front brakes DO do all the work.
On my 3/4 ton suburban, its a 97, gig 13" dia x 3" wide rear drum brakes - never changed them yet in 130,000 miles. set 6 on the front.
even the piston in the master cylinder pushes more to the front.
By the way.. i just put Baer brakes on on my C6, and now my Rear are actually Larger than the front. Because the rear caliper is smaller, it can be pushed out further, and allow a larger rotor.
if i could figure how to post a pic... i would.
On my 3/4 ton suburban, its a 97, gig 13" dia x 3" wide rear drum brakes - never changed them yet in 130,000 miles. set 6 on the front.
even the piston in the master cylinder pushes more to the front.
By the way.. i just put Baer brakes on on my C6, and now my Rear are actually Larger than the front. Because the rear caliper is smaller, it can be pushed out further, and allow a larger rotor.
if i could figure how to post a pic... i would.
Front
Rear
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
Originally Posted by timd38
My fronts are 13.4" and the rears are 14".
Here are before-n-after pix of my F55 rear wheels.
Bob
Original OE rotor:
Baer EradiSpeed +1 (14") rotor:
Pro
Joined: Apr 2006
Posts: 745
Likes: 1
From: Denver Colorado
Originally Posted by beezeye
Mine too, but of course that's purely for "bling"!
I push my Vette hard. With the stock brakes, I could smell em even inside the car. The difference after I changed em out (added ceramic pads as well) was pretty amazing. This thing stops much better.
(However, I wonder if it was the pads more than the the rotors)
