Brake rotor sizes?
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Originally posted by TheHeadFL
Incorrect
hehe
The LS1 F-Body has the same brakes as the C4 Vette.
The LS1 Vette (C5) has pressure cast PBR calipers. The F-Body has the gravity cast C4 style. Z06 is the same as the regular C5.
Incorrect
heheThe LS1 F-Body has the same brakes as the C4 Vette.
The LS1 Vette (C5) has pressure cast PBR calipers. The F-Body has the gravity cast C4 style. Z06 is the same as the regular C5.
The LS1 F-Body does not use the same calipers as the C4 Corvette! The LS1 F-Body and the C5's calipers are very similar. The C5's calipers has ribs that run the entire width of the top of the caliper for increased strength. Both are PBR calipers.93-97 F-Body front rotor: 10.8
98-02 F-Body front rotor: 11.9
ZR-1 front rotor 13.1
97-04 Corvette front rotor: 12.6
1996 Corvette front rotor: 12.0
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Joined: Sep 2002
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From: Orlando, FL
The rotor diameter has nothing to do with the type of caliper used.
I already explained the difference was between PRESSURE CAST and GRAVITY CAST. Lots of OEMs use PBR and lots of aftermarket too... You can get your "LS1 brake upgrade" from Baer as the "Track" kit in a 13" rotor if you want. The C4 used gravity cast PBR calipers.
I already explained the difference was between PRESSURE CAST and GRAVITY CAST. Lots of OEMs use PBR and lots of aftermarket too... You can get your "LS1 brake upgrade" from Baer as the "Track" kit in a 13" rotor if you want. The C4 used gravity cast PBR calipers.
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Originally posted by TheHeadFL
The rotor diameter has nothing to do with the type of caliper used.
I already explained the difference was between PRESSURE CAST and GRAVITY CAST. Lots of OEMs use PBR and lots of aftermarket too... You can get your "LS1 brake upgrade" from Baer as the "Track" kit in a 13" rotor if you want. The C4 used gravity cast PBR calipers.
The rotor diameter has nothing to do with the type of caliper used.
I already explained the difference was between PRESSURE CAST and GRAVITY CAST. Lots of OEMs use PBR and lots of aftermarket too... You can get your "LS1 brake upgrade" from Baer as the "Track" kit in a 13" rotor if you want. The C4 used gravity cast PBR calipers.
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Joined: Sep 2002
Posts: 464
From: Orlando, FL
Yes, however, I was actually correcting somebody's information.
By the way, in case you were interested, blip about C4 brakes:
http://www.vetteweb.com/tech/vet_0310_baer/
By the way, in case you were interested, blip about C4 brakes:
When the first C4 was introduced in early 1983, the new Vette came with a new four-wheel-disc braking system, complete with single-piston aluminum calipers manufactured by Girlock of Australia. The new binders were very capable--reviews from that time show 60-0 stopping distances of 133 and 144 feet (two different Road & Track tests), while Motor Trend hauled the '84 down in 120 feet. The PBR two-piston front calipers that were added to the '88 Corvette were used, with slight variations, right up until the end of the C4 line in 1996.
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From: Las Vegas
i dont know bro. the casting methods may be the same with the c4 and the 98 style brake systems, but the look and the dual vs single piston styles are totally different. the 98 style brakes look like c5 brakes minus and inch.
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Joined: Sep 2002
Posts: 464
From: Orlando, FL
Originally posted by DrewHMS97SS
i dont know bro. the casting methods may be the same with the c4 and the 98 style brake systems, but the look and the dual vs single piston styles are totally different. the 98 style brakes look like c5 brakes minus and inch.
i dont know bro. the casting methods may be the same with the c4 and the 98 style brake systems, but the look and the dual vs single piston styles are totally different. the 98 style brakes look like c5 brakes minus and inch.
GM was using the gravity cast dual piston PBR caliper for the 88-96 Vettes. In 97, GM switched to the ever so slightly different in apperance pressure cast caliper with vanes along the edge for strength. They are both still dual piston PBR calipers, the C5 caliper being marginally better than the C4. (More resistant to spreading) I have no idea what GM decided to use on the LT1 F-Body, lol. That is the off the shelf crap single piston caliper on a lot of GM cars of those years.
Anyway, the point was that the LS1 F-Body brakes are just the C4 brakes with a slightly different rotor. The C5 brakes are "better" in that the caliper is more rigid and the rotor is larger in diameter (which is just a function of the caliper mounting bracket) for more swept area. They are both good braking setups. I suspect the main improvement going from LS1 to C5 brakes are just the more rigid caliper and more resistance to fade due to more mass, etc. I would expect the Baer Track kit to perform almost as well (with a gravity cast caliper) as the C5 kit due to the 13" rotor. The Baer GT+ kit actually uses the pressure cast caliper, a la C5, and probably is the better of the bunch, with a 14" rotor, but I think its overpriced. For the same cost (almost) as the Baer GT+ kit I went with Wilwood and I guarantee it stops much better.
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Ummm TheHeadFL...the LS1 F-Body calipers are not 88-96 Corvette calipers. The only F-Body that used the dual piston 88-96 Corvette calipers were 3rd generation F-Body's that were optioned with the very rare 1LE package.
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From: Orlando, FL
Originally posted by carlos64030
Ummm TheHeadFL...the LS1 F-Body calipers are not 88-96 Corvette calipers. The only F-Body that used the dual piston 88-96 Corvette calipers were 3rd generation F-Body's that were optioned with the very rare 1LE package.
Ummm TheHeadFL...the LS1 F-Body calipers are not 88-96 Corvette calipers. The only F-Body that used the dual piston 88-96 Corvette calipers were 3rd generation F-Body's that were optioned with the very rare 1LE package.
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Joined: Sep 2002
Posts: 464
From: Orlando, FL
Here is how they work on a Vette with the milder pads:
http://www.vetteweb.com/tech/vet_0310_breaking/
And thats compared to the already good C5 brakes.
http://www.vetteweb.com/tech/vet_0310_breaking/
According to the G-Tech, all six stops from 60 mph were accomplished in 122 feet, which is right in line with the published road test results on standard C5s in magazines like Motor Trend and Road & Track. While the stops were all in the same distance, in my purely subjective opinion, it seemed to take more effort or push on the pedal in each successive stop to accomplish maximum braking, and that brake fade was accompanied by a hot and stinky aroma wafting off the front discs.
...
Meanwhile, we can report that the Wilwoods work quite well. Even with the limitations imposed by the stock run-flats, the double-ought coupe pulled down a series of 60-0 stops ranging from 111 to a best of 109 feet. And it did so without any sensation of fade or the stench of overworked and overheating brakes.
...
Meanwhile, we can report that the Wilwoods work quite well. Even with the limitations imposed by the stock run-flats, the double-ought coupe pulled down a series of 60-0 stops ranging from 111 to a best of 109 feet. And it did so without any sensation of fade or the stench of overworked and overheating brakes.