C4 Brake upgrade
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
That's beautiful man. Maybe now I can go back to autocrossing in stock class.
FELNGR8, sounds like you're inside front wheel may be trying to lock up on corner entry. You lose some braking ability while turning in. I'm thinking due to the master cylinder design, that the ABS can't modulate the front brakes seperately, although it might be benefitial for racing if it doesn't spin you out first.
FELNGR8, sounds like you're inside front wheel may be trying to lock up on corner entry. You lose some braking ability while turning in. I'm thinking due to the master cylinder design, that the ABS can't modulate the front brakes seperately, although it might be benefitial for racing if it doesn't spin you out first.
Melting Slicks
Joined: May 2002
Posts: 2,670
Likes: 4
From: Severna Park MD
Originally Posted by CentralCoaster
That's beautiful man. Maybe now I can go back to autocrossing in stock class.
FELNGR8, sounds like you're inside front wheel may be trying to lock up on corner entry. You lose some braking ability while turning in. I'm thinking due to the master cylinder design, that the ABS can't modulate the front brakes seperately, although it might be benefitial for racing if it doesn't spin you out first.
FELNGR8, sounds like you're inside front wheel may be trying to lock up on corner entry. You lose some braking ability while turning in. I'm thinking due to the master cylinder design, that the ABS can't modulate the front brakes seperately, although it might be benefitial for racing if it doesn't spin you out first.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
The DRM will absolutely help. Otherwise your brake upgrade will give you premature ABS activation. I seriously doubt the differing wheel speeds is a factor.
Le Mans Master
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
Originally Posted by gringoray
One more thing, some of you guys don't know sh*t from shiola, now get with the program and start advising your fellow vette brother correctly.
More importantly, why would you assume the 1/8" required spacer needed for later Vette's wouldn't apply to your TT2's, just because AFS knock off ZR1s work?
Thats apples to oranges, I don't think you can blame the forum for this. But feel free to prove me wrong.
Point being, you should double check everything.
Pro
Joined: Feb 2004
Posts: 534
Likes: 0
From: was Brookline MA but now San Antonio TX
Had a C5 front brake kit from VBP with Hawk HP+ pads on my ex-'92 with the stock sized rears and they worked 
Compared to some others, it was reasonably priced at about $1000. Ran several track days with them no problem, and it'd outstop the factory brakes on my C5 Z06 (probably due to the pads). I'd suggest going with slotted only rotors as the drilled ones do tend to crack. Still don't understand the hate for the C5 brake upgrade on the C4, except that some 17" wheels will not clear. C5 factory 17" wheels will clear, since that's what I used on the track. I went with the "as delivered" VBP package with just a pad upgrade, installed them myself in about 3 hours one afternoon and they were on my car for about 3 years with no problems before I sold it.
Compared to some others, it was reasonably priced at about $1000. Ran several track days with them no problem, and it'd outstop the factory brakes on my C5 Z06 (probably due to the pads). I'd suggest going with slotted only rotors as the drilled ones do tend to crack. Still don't understand the hate for the C5 brake upgrade on the C4, except that some 17" wheels will not clear. C5 factory 17" wheels will clear, since that's what I used on the track. I went with the "as delivered" VBP package with just a pad upgrade, installed them myself in about 3 hours one afternoon and they were on my car for about 3 years with no problems before I sold it.
Last edited by eschantra; May 14, 2006 at 03:23 PM.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by red_johnny
I am still in the air about going with drilled, drilled/slotted or just slotted. Definately sure on the ceramic pads though
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,217
Likes: 0
From: Augusta GA
Huh? Should I go with the green stuff instead? I heard they had good pads. I really want a pad that does not creat a huge ammount of dust and that performs well and does not wear fast. Would not ceramics be the best choice for this?
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Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by red_johnny
Huh? Should I go with the green stuff instead? I heard they had good pads. I really want a pad that does not creat a huge ammount of dust and that performs well and does not wear fast. Would not ceramics be the best choice for this?
And btw, nobody makes ceramic pads for your rear brakes.
Last edited by CentralCoaster; May 16, 2006 at 09:41 PM.
Racer
Joined: Jan 2005
Posts: 476
Likes: 0
From: Tucson, AZ. L98-85 AUTO COUPE: 120k MILES: daily driver. SOUND OFF IF YOU'VE BEEN THERE. Ex-Jumpin' Junky-82nd Airborne-2/505 PIR: 1st ID-1/16th Inf: Recon Marine Retread. GOD BLESS GRUNTS.
if you don't like dust, paint the majority of the rims black. that's what i'm going to do, and it will gave a face lift and modernize the look of my old-style, gotti, three piece rims.
Racer
Joined: Sep 2005
Posts: 484
Likes: 0
From: Germany
Now I have C5 brakes, too ... Brembo rotors purchased at Porsche (the price is the half compared to buying direct from Brembo 
) with custom 7075 Aluminum hats and black painted calipers.
Don't care about the right rotor on the left side ... it is not finaly mounted. I have to wait for the tires and this was only a test if all parts would fit together. I'll use Hawk HPS Pads ...
Btw, thanks to Sixxcat1 for this as good as new wheels
Best wishes from Germany
Eike
) with custom 7075 Aluminum hats and black painted calipers.Don't care about the right rotor on the left side ... it is not finaly mounted. I have to wait for the tires and this was only a test if all parts would fit together. I'll use Hawk HPS Pads ...
Btw, thanks to Sixxcat1 for this as good as new wheels
Best wishes from Germany
Eike
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,217
Likes: 0
From: Augusta GA
Originally Posted by CentralCoaster
Yeah, ceramics fit your needs. I'm just bustin your ***** for not using the dustiest stickiest racing brakes that sound like an African elephant in heat when you use em.
And btw, nobody makes ceramic pads for your rear brakes.
And btw, nobody makes ceramic pads for your rear brakes.
Le Mans Master
Joined: Jun 2005
Posts: 5,037
Likes: 520
From: Texas
5 pages... wow.
I guess I am back in this boat with the same question as the original poster. I got the C5 calipers in my garage right now. I intended to use the car for street/track but since plans have now changed, I am wondering if C5 calipers are what I should go with. Going back to this post, I am wondering if they still stack up with my "modified" criteria.
3 & 4 are pretty much at the top (both are pretty darn important) and the answer to 7 would be pretty much track/auto-x exclusively. 2, 5, and 6 dont mean much since it wont be a show car or daily driver and I would be lying if I said 1 didnt matter (if it didnt, Movit kit would be in my garage, not C5 calipers).
Centralcoaster brought up some damn good points about pads and rotors, which is why I think the C5 calipers may still work with some good Hawk race pads (Blue 9012's?) and slotted rotors as far as absolute stopping power. Fade resistance... good race brake fluid?
Originally Posted by ScaryFast
So...please rank the following items in a rough order of what's most important:
1. Cost
2. Appearance
3. Absolute stopping power
4. Fade resistance
5. Dust emittance
6. Noise or squeal
7. Street or track / Auto-X use
This will help us narrow your answer down immensely.
1. Cost
2. Appearance
3. Absolute stopping power
4. Fade resistance
5. Dust emittance
6. Noise or squeal
7. Street or track / Auto-X use
This will help us narrow your answer down immensely.
Centralcoaster brought up some damn good points about pads and rotors, which is why I think the C5 calipers may still work with some good Hawk race pads (Blue 9012's?) and slotted rotors as far as absolute stopping power. Fade resistance... good race brake fluid?
Racer
Joined: Jan 2005
Posts: 476
Likes: 0
From: Tucson, AZ. L98-85 AUTO COUPE: 120k MILES: daily driver. SOUND OFF IF YOU'VE BEEN THERE. Ex-Jumpin' Junky-82nd Airborne-2/505 PIR: 1st ID-1/16th Inf: Recon Marine Retread. GOD BLESS GRUNTS.
EEK, i lika you rims.
your brake things fit the hole real good.
no matter who fast you spin, you still see corvette.
almost cool.
wow.
this is my fifth language. still fu*king up the first.
your brake things fit the hole real good.
no matter who fast you spin, you still see corvette.
almost cool.
wow.
this is my fifth language. still fu*king up the first.
Last edited by parafrog; May 19, 2006 at 09:37 AM.
Burning Brakes
Joined: Apr 2003
Posts: 1,071
Likes: 2
Some good information in this thread, but mostly at a higher level. The details of brake systems include the piston diameters in the master cylinder and brake calipers.
Grabbing a caliper off the shelf that "looks good" may have a dramatic effect on the braking ability of the car. I have some software tools that compute the brake clamping forces, line pressures, CG change, etc, etc. for designing a brake system for a race car. I'm currently working on the suspension design for my 1969 Prepared AutoX car - ground up suspension development.
Ryan
Grabbing a caliper off the shelf that "looks good" may have a dramatic effect on the braking ability of the car. I have some software tools that compute the brake clamping forces, line pressures, CG change, etc, etc. for designing a brake system for a race car. I'm currently working on the suspension design for my 1969 Prepared AutoX car - ground up suspension development.
Ryan
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,217
Likes: 0
From: Augusta GA
Originally Posted by reidry
I have some software tools that compute the brake clamping forces, line pressures, CG change, etc, etc. for designing a brake system for a race car.
Ryan
Ryan
