new wilwood brake kit
07-23-2010, 04:36 AM
#2
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Don't have them, but this is really making me feel the itch again. I'm starting my brake parts buying this weekend, and thinking about it, Trackspeed front kit is only $600, vs. $120 for the BBK brackets, then another $100+ for the lines. That makes the Wilwood kit seem so much cheaper than last time I looked at them. I may end up saving the extra $300 for the Wilwood. Not the rear though, since my car is a daily driver, need the e-brake. That also means I have to get the new master cylinder too, I don't want to cheap out and regret it like I usually do.
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07-23-2010, 08:38 AM
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I'm sure it is, but a recommended upgrade is a bigger MC, like the Wilwood unit. Trying to push that much more of a caliper with the same little puny stock MC pistons. Let Sav chime in. It's early, I'm out of my mind on my sleeping pills (couldn't go to sleep until I changed both of my front wheels out, damn flat)...
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07-23-2010, 09:32 AM
#6
I was wondering about the new piston ratio. The TSE kit doesn't mention anything about a new MC though.
If Sav comes back...is your BBK compatible with my 01 that has the sport brakes? I know it says 90-97, just wondering what about it would be different in terms of the caliper carrier mounting points.
If Sav comes back...is your BBK compatible with my 01 that has the sport brakes? I know it says 90-97, just wondering what about it would be different in terms of the caliper carrier mounting points.
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07-24-2010, 04:50 PM
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I was wondering about the new piston ratio. The TSE kit doesn't mention anything about a new MC though.
If Sav comes back...is your BBK compatible with my 01 that has the sport brakes? I know it says 90-97, just wondering what about it would be different in terms of the caliper carrier mounting points.
If Sav comes back...is your BBK compatible with my 01 that has the sport brakes? I know it says 90-97, just wondering what about it would be different in terms of the caliper carrier mounting points.
I don't recall the numbers off the top of my head, but the caliper we use is like 5% more piston area than stock. The DP6 caliper I use is like 3% more than stock. Not nearly enough to require a larger MC or any other consideration. The Sport MC is larger than the standard MC, which will provide a firmer pedal and better feel. The bias change comes from the larger front rotors.
The "upgrade" for the MC is the Sport MC. You need the booster as well and the lines don't quite match up, but you can make it work.
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07-24-2010, 07:08 PM
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if you know the stock MC piston size, pedal travel to MC piston travel (ratio), stock caliper piston size, stock caliper radius, and pad surface area/coeff of friction, you could calculate stock braking force vs pedal force then figure out how that compares to using the stock MC with the wilwood kit.
actually, if anyone wants to give me all the stock specs I would be glad to make a spreadsheet to help peeps out.
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07-25-2010, 12:00 AM
#13
Should be nothing, we just never bolted it up to a Sport spindle so we weren't 100% sure. I think JayL replaced his Sport fronts with our BBK.
I don't recall the numbers off the top of my head, but the caliper we use is like 5% more piston area than stock. The DP6 caliper I use is like 3% more than stock. Not nearly enough to require a larger MC or any other consideration. The Sport MC is larger than the standard MC, which will provide a firmer pedal and better feel. The bias change comes from the larger front rotors.
The "upgrade" for the MC is the Sport MC. You need the booster as well and the lines don't quite match up, but you can make it work.
I don't recall the numbers off the top of my head, but the caliper we use is like 5% more piston area than stock. The DP6 caliper I use is like 3% more than stock. Not nearly enough to require a larger MC or any other consideration. The Sport MC is larger than the standard MC, which will provide a firmer pedal and better feel. The bias change comes from the larger front rotors.
The "upgrade" for the MC is the Sport MC. You need the booster as well and the lines don't quite match up, but you can make it work.
With that combo and your BBK, my 2700+ pound pig stops in a real hurry.
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07-25-2010, 03:52 AM
#14
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Well overall quality between stock and a wilwood should be an improvement, but you really only need a new MC if you need a different piston size from stock.
if you know the stock MC piston size, pedal travel to MC piston travel (ratio), stock caliper piston size, stock caliper radius, and pad surface area/coeff of friction, you could calculate stock braking force vs pedal force then figure out how that compares to using the stock MC with the wilwood kit.
actually, if anyone wants to give me all the stock specs I would be glad to make a spreadsheet to help peeps out.
if you know the stock MC piston size, pedal travel to MC piston travel (ratio), stock caliper piston size, stock caliper radius, and pad surface area/coeff of friction, you could calculate stock braking force vs pedal force then figure out how that compares to using the stock MC with the wilwood kit.
actually, if anyone wants to give me all the stock specs I would be glad to make a spreadsheet to help peeps out.
Then again I guess it wouldn't hurt anything to get the Wilwood. I'll see if I feel like springing the extra $200 for the MC. Could always do it later if I needed to for whatever reason.
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07-25-2010, 02:23 PM
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But that should be offset some by the fact that the larger diameter rotors and larger pad surface area can create more braking torque vs piston force than stock.
So if I had to guess, expect a slightly longer brake pedal throw, but less effort will be needed on your part than the stock brakes (using the stock MC).
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07-25-2010, 05:35 PM
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Wouldn't longer pedal travel give you more distance for modulation? Though I also don't want to have to push the pedal half way down to get enough force to stop in a hurry.
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