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Track Days - Wilwood vs AP Racing

 
Old 06-16-2019, 11:12 AM
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Viking0728
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Default Track Days - Wilwood vs AP Racing

Has anyone tried both? How do they compare?

I'm looking at swapping out the Z07 CCBs and don't see much online about the Wilwoods. I run 19 inch track wheels, so clearance should be okay. Thanks.
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Old 06-16-2019, 12:46 PM
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Detroit_Bill
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Default Road Racing

Originally Posted by Viking0728 View Post
Has anyone tried both? How do they compare?

I'm looking at swapping out the Z07 CCBs and don't see much online about the Wilwoods. I run 19 inch track wheels, so clearance should be okay. Thanks.
You might want to try this question in the road racing section of the general area.
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Old 06-16-2019, 12:48 PM
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Bill Dearborn
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I had the Wilwoods on my C6Z and liked them. There was only one troublesome spot and that was with the hat used for the rear kit that placed the rotor too close to the tie rod end. I think that came about because they used standard parts to make a kit that fit. Wilwood's method of attaching the caliper to the knuckle provides the ability to shim it outward if required, however, the hat they chose only worked if no shims were used. I don't know whether the C7 rear kit changes that. I looked online at their website and saw the rear hat had a 0.73 offset which is greater than the 0.69 offset used on my C6Z kit. The C7 toe link is mounted differently than the C6 tie rod is so there might not be an issue but it is something that should be checked.

When I took the ceramic brakes off my 15 Z06/Z07 I decided to go with the Essex AP kit that had 1 inch thick front pads. The Wilwood calipers hold you to thinner pads although pad volume isn't too bad. However, I do know the 1 inch thick pads used with the AP kit seem to last forever while the 6617 Wilwood pad doesn't, although for a while Wilwood was offering a caliper that would accept a .8 inch thick pad (6620) and that pad also wore very well (I used the 7420 shape in the H compound that had the same .8 in thickness in SL6 calipers on my C5Z and could get 10 track days out of a set of those pads). The Wilwood slotted GT 72 rotors are excellent rotors and hold up as well as the AP racing rotors.

As for pad compounds they are more limited than the AP calipers will be. Wilwood has two great track compounds (their H and A pads, I preferred the H's Vs the A's because the A's were a little too aggressive for me).

For Wilwood info call Todd at TCE Performance in Arizona: http://www.tceperformanceproducts.co...te-c7/kits-52/ He is very knowledgeable of Wilwood's offerings and can help you with selection and better prices than Wilwood. He is sometimes able to find things that don't show on Wilwood's web page. Right now Wilwood's web page seems to be having some loading problems as I can only get a couple of things to load. Check them out later tonight or tomorrow.

For AP info call Jeff Ritter or Daniel at Essex Parts. https://www.essexparts.com/

You can send both Todd (Todd TCE) and Jeff ([email protected]) PM's through the forum as both are members.

Bill

Last edited by Bill Dearborn; 06-16-2019 at 12:49 PM.
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Old 06-16-2019, 01:03 PM
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Default We need an “Ask Bill Dearborn” section to the forum.

Bill you are a wealth of knowledge and so willing to share. Thank you I look forward to your help in the future, you have helped me quite a bit already, thanks.

Last edited by Detroit_Bill; 06-16-2019 at 07:23 PM.
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Old 06-16-2019, 01:26 PM
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Originally Posted by Detroit_Bill View Post
Bill you are a wealth of knowledge and so willing to share. Thank I look forward to your help in the future, you have helped me quite a bit already, thanks.
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Old 06-16-2019, 01:30 PM
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Originally Posted by Bill Dearborn View Post
I had the Wilwoods on my C6Z and liked them. There was only one troublesome spot and that was with the hat used for the rear kit that placed the rotor too close to the tie rod end. I think that came about because they used standard parts to make a kit that fit. Wilwood's method of attaching the caliper to the knuckle provides the ability to shim it outward if required, however, the hat they chose only worked if no shims were used. I don't know whether the C7 rear kit changes that. I looked online at their website and saw the rear hat had a 0.73 offset which is greater than the 0.69 offset used on my C6Z kit. The C7 toe link is mounted differently than the C6 tie rod is so there might not be an issue but it is something that should be checked.

When I took the ceramic brakes off my 15 Z06/Z07 I decided to go with the Essex AP kit that had 1 inch thick front pads. The Wilwood calipers hold you to thinner pads although pad volume isn't too bad. However, I do know the 1 inch thick pads used with the AP kit seem to last forever while the 6617 Wilwood pad doesn't, although for a while Wilwood was offering a caliper that would accept a .8 inch thick pad (6620) and that pad also wore very well (I used the 7420 shape in the H compound that had the same .8 in thickness in SL6 calipers on my C5Z and could get 10 track days out of a set of those pads). The Wilwood slotted GT 72 rotors are excellent rotors and hold up as well as the AP racing rotors.

As for pad compounds they are more limited than the AP calipers will be. Wilwood has two great track compounds (their H and A pads, I preferred the H's Vs the A's because the A's were a little too aggressive for me).

For Wilwood info call Todd at TCE Performance in Arizona: http://www.tceperformanceproducts.co...te-c7/kits-52/ He is very knowledgeable of Wilwood's offerings and can help you with selection and better prices than Wilwood. He is sometimes able to find things that don't show on Wilwood's web page. Right now Wilwood's web page seems to be having some loading problems as I can only get a couple of things to load. Check them out later tonight or tomorrow.

For AP info call Jeff Ritter or Daniel at Essex Parts. https://www.essexparts.com/

You can send both Todd (Todd TCE) and Jeff ([email protected]) PM's through the forum as both are members.

Bill
Thanks! I'll give TCE Performance a call.
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Old 06-16-2019, 02:22 PM
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+1 for AP Racing. I have Girodisc rotors with Ferodo DS1.11 pads. My dad and good friend have the AP Racing kits with DS1.11 pads. The Girodisc rotors with stock calipers are fine, but the stopping power and endless solid pedal feel of the AP kit is certainly superior. If you’re willing to spend the money, I do not think there is a better braking solution on the market than the AP kit.

Talk to Ken at KNS Brakes. He can get you set up at a great price with anything you need.

Last edited by BLK06ZO6; 06-16-2019 at 02:24 PM.
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