Performance Difference between 4 piston Wilwood & C5 conversion?
Thread Starter
Racer
Joined: Sep 2003
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From: Lompoc CA
Performance Difference between 4 piston Wilwood & C5 conversion?
Which is the better way to go? I was thinking about the VB&P C5 conversion kit...
http://www.vbandp.com/detail.aspx?ID=291
I will not be doing much auto cross, but I want the best brakes I can reasonably get.
Richard
http://www.vbandp.com/detail.aspx?ID=291
I will not be doing much auto cross, but I want the best brakes I can reasonably get.
Richard
Team Owner
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
What is your budget? The stock 84-87 brakes work quite well.
I'd recommend trying the DRM bias spring with hawk hps or hp+ pads, and get the rotors cut, and a good fluid flush. If you can manage to fade those, then get the C5 kit and bias spring. Don't buy it from those guys though, they're overpriced.
I'd recommend trying the DRM bias spring with hawk hps or hp+ pads, and get the rotors cut, and a good fluid flush. If you can manage to fade those, then get the C5 kit and bias spring. Don't buy it from those guys though, they're overpriced.
Last edited by CentralCoaster; Jan 23, 2006 at 02:31 AM.
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From: Manassas VA
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St. Jude Donor '14
Go MOVIT or Brembo. Wilwood requires Cutting.
www.movitusa.com
www.brembo.com
Here is the 4 piston setup. Around $2200 to $2300.00 from MOVIT
Pic of the 6 piston billet setup.
www.movitusa.com
www.brembo.com
Here is the 4 piston setup. Around $2200 to $2300.00 from MOVIT
Pic of the 6 piston billet setup.
Last edited by Bluewasp; Jan 23, 2006 at 07:25 AM.
Team Owner
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
He has an 85. You can install C5 wilwood bolt-on front kit to your 85 without cutting. It requires either a C5 upgrade adapter or a custom caliper bracket. Ed's bracket won't work though. Check my corvette photos.
Race Director
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St. Jude Donor '14
The larger 6 piston billet setup costs ~$3200
The 4 piston monoblock setup is a little more then $2k....
He also sells a 4 piston rear caliper with a small parking brake caliper.
NO cutting required....
The 4 piston monoblock setup is a little more then $2k....
He also sells a 4 piston rear caliper with a small parking brake caliper.
NO cutting required....
Last edited by Bluewasp; Jan 23, 2006 at 12:03 PM.
Race Director
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From: Manassas VA
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St. Jude Donor '14
Originally Posted by CentralCoaster
He has an 85. You can install C5 wilwood bolt-on front kit to your 85 without cutting. It requires either a C5 upgrade adapter or a custom caliper bracket. Ed's bracket won't work though. Check my corvette photos.
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Thread Starter
Racer
Joined: Sep 2003
Posts: 454
Likes: 1
From: Lompoc CA
I can get the VB&P C5 kit for approx $800 which I would think is a pretty good deal for the larger surface area of braking and also do a DRM bias spring, new hoses, and better fluid. I would think this would be at least close to the wilwood kit.
If I went with the wilwood kit from precision brakes has anyone tried out that kit? Adapter included? Where would I get it otherwise?
I would like to stay under $1.2K
Richard
If I went with the wilwood kit from precision brakes has anyone tried out that kit? Adapter included? Where would I get it otherwise?
I would like to stay under $1.2K
Richard
Last edited by nonetooclose; Jan 23, 2006 at 12:28 PM.
Thread Starter
Racer
Joined: Sep 2003
Posts: 454
Likes: 1
From: Lompoc CA
Originally Posted by CentralCoaster
He has an 85. You can install C5 wilwood bolt-on front kit to your 85 without cutting. It requires either a C5 upgrade adapter or a custom caliper bracket. Ed's bracket won't work though. Check my corvette photos.
I took a look at your photos! Wow! Nice setup... I should be able to fit that in my wheels since I have 2002 Z06 rims. Did you have to buy an adapter braket? Where? Also where did you get the wilwood kit from?
Richard
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From: Manassas VA
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St. Jude Donor '14
Originally Posted by BrianCunningham
The C5 rotor, which are as big as the ones on my friends GT1 car, are actually cheaper than C4 rotors 
So if you can get a kit that uses those.
So if you can get a kit that uses those.
While living in Germany I visited the hockenheimring several times and drove on the autobahn almost on a daily basis. I never swapped rotors, no issues with cracking (drilled / slotted) or brake fade.
Of course everyone doesn’t replace rotors after every weekend event but I seriously doubt I could have driven the autobahn and the Ring for two years on one set of C5 rotors… I was able to on a set of Brembos
If you going to spend $1500 or more on a big brake package why use Stock C5 rotors?
Thanks
Robert
Last edited by Bluewasp; Jan 23, 2006 at 04:41 PM.
Racer
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From: Germany
Brian, Maybe you can explain to me why someone would want a kit that uses stock C5 rotors.
That's cheaper than Movit and better than any stock C5 rotor. I'll try this as soon as available ...
e.
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From: Boston, Dallas, Detroit, SoCal, back to Boston MA
If want to keep the stock wheels, you can't go to a 14in rotor.
C5 rotors aren't the best, but they're better than the C4's, and they're cheaper to boot. Aggresive pads make the rotors as disposable as the pads.
Me, since I have 18in wheels and the J55's already, I'm not upgrading till I can get 14in rotors.
C5 rotors aren't the best, but they're better than the C4's, and they're cheaper to boot. Aggresive pads make the rotors as disposable as the pads.
Me, since I have 18in wheels and the J55's already, I'm not upgrading till I can get 14in rotors.
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St. Jude Donor '14
Originally Posted by Eike
A friend of mine is going to adapt Brembo rotors which will fit the C5 Calipers. These rotors are used on the Porsche 993 TT / C4S.
That's cheaper than Movit and better than any stock C5 rotor. I'll try this as soon as available ...
e.
That's cheaper than Movit and better than any stock C5 rotor. I'll try this as soon as available ...
e.
The wilwood kit that works with C5 rotors costs ?? $1500? Then you add a brembo rotor, 250 each. NOw you need the hat?? Cost 250 each to 300 each? So you are talking about a system that now costs over $2k???
Stillen used to sell Brembo C4 hats for F40 calipers, $300.00 each.
Last edited by Bluewasp; Jan 23, 2006 at 05:54 PM.
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From: Manassas VA
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St. Jude Donor '14
Originally Posted by BrianCunningham
If want to keep the stock wheels, you can't go to a 14in rotor.
C5 rotors aren't the best, but they're better than the C4's, and they're cheaper to boot. Aggresive pads make the rotors as disposable as the pads.
Me, since I have 18in wheels and the J55's already, I'm not upgrading till I can get 14in rotors.
C5 rotors aren't the best, but they're better than the C4's, and they're cheaper to boot. Aggresive pads make the rotors as disposable as the pads.
Me, since I have 18in wheels and the J55's already, I'm not upgrading till I can get 14in rotors.
I own a brembo C4 kit and a MOVIT kit btw.
Last edited by Bluewasp; Jan 23, 2006 at 05:51 PM.
Racer
Joined: Sep 2005
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From: Germany
Whats the cost?
In Germany, the rotors cost $250 each and the hat will cost $120 each and can be reused. Assembled and balanced, the kit will cost $780
It will only be a small series production, perhaps a hand full. But anyone who has the CAD-drawing can make the hats ...
Last edited by Eike; Jan 23, 2006 at 06:16 PM.
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A lot of companies make aftermarket rotors for the C5, which is yet another reason to utilize a kit the uses them. It's a cost thing.
If I had $$$ to burn I'd run StopTech's or Alcons, the Wilwoods are a good compromise, and most speed shops carry their rotors.
If I had $$$ to burn I'd run StopTech's or Alcons, the Wilwoods are a good compromise, and most speed shops carry their rotors.
Team Owner
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
My wilwood kit, from summit is $1900. Add in brake adapters for $100-$200. Electrodynamics sells some that'd work with at most very very minor touch up with the grinder, but he's expensive.
Then you need brake lines for $50 (using earl's fittings). The calipers are excellent, 6 SS pistons, billet, but do not have dust boots. Quick change pads, same as all the other expensive kits. There was a forum member on here selling a Camaro 12.9" wilwood kit with custom brackets for the C4.
The kit I have will upset your bias so much that you'll need a super stiff bias spring (about $5) or pressure reducers on both front lines. The drm spring isn't strong enough for anything more than a C5 upgrade in my opinion.
Replacement wilwood pads are cheap and readily available, but the rotors are $220-240 each.
I'm almost tempted to go back to the stock 85 brakes with better pads just so I can show all the naysayers what they're capable of. I couldnt turn down the deal on the wilwoods though.
Then you need brake lines for $50 (using earl's fittings). The calipers are excellent, 6 SS pistons, billet, but do not have dust boots. Quick change pads, same as all the other expensive kits. There was a forum member on here selling a Camaro 12.9" wilwood kit with custom brackets for the C4.
The kit I have will upset your bias so much that you'll need a super stiff bias spring (about $5) or pressure reducers on both front lines. The drm spring isn't strong enough for anything more than a C5 upgrade in my opinion.
Replacement wilwood pads are cheap and readily available, but the rotors are $220-240 each.
I'm almost tempted to go back to the stock 85 brakes with better pads just so I can show all the naysayers what they're capable of. I couldnt turn down the deal on the wilwoods though.
Team Owner
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by BrianCunningham
A lot of companies make aftermarket rotors for the C5, which is yet another reason to utilize a kit the uses them. It's a cost thing.
If I had $$$ to burn I'd run StopTech's or Alcons, the Wilwoods are a good compromise, and most speed shops carry their rotors.
If I had $$$ to burn I'd run StopTech's or Alcons, the Wilwoods are a good compromise, and most speed shops carry their rotors.
This kit uses 13.1x1.25" rotors, but I don't know if the offset matches up with the C5 units... the wilwood hats are very shallow, they only come off the rotor face by about 5/8"