Willwood brake upgrade. Anygood?


^^ Cool! ^^ post-up some pics of some custom work you have already done?
I find this type of work extreamly interesting and valuable.

For those who don't know already, sorry for those how already know,
proper upgraded brake setups [calipers, disks and pads] are instrumental
to lowering track times and stopping distances.

Seems like we all focus on whp/tq when in fact brakes are just as, if not more, important.

Mine, well for now this is what I have on the hatchback [NA k20 S] DBA disks custom hats.
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Looking for some new discs 298.5x32. Done over 6 hours of Racing on them cracks on discs . Was looking for some AP ones but AP will not sell them to me in the uk . US can only have them for there prostock car . $160 each can any1 help . I know Rally design sell them . Freaky parts can u help.
 
FreakyParts said:
Depends on budget really.
We can supply Brembo, AP Racing, Wilwood and custom kits if you have a set of calipers lying around.
We're currently doing a kit for a customer (member on here) who acquired a set of radial mount Brembo calipers which appear to be of the Aston Martin/Ferrari 360 variety to bolt to his EK9 with a set of 300x25mm 2 piece rotors.
I'll post up some pictures when it's completed in the next week or 2.
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Be interested in prices for AP brake set up for the ek9?
 
Bigskank said:
Looking for some new discs 298.5x32. Done over 6 hours of Racing on them cracks on discs . Was looking for some AP ones but AP will not sell them to me in the uk . US can only have them for there prostock car . $160 each can any1 help . I know Rally design sell them . Freaky parts can u help.
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If you'd had said this morning I could have tagged them on the order. I can sort them but as one offs they're no cheaper than going direct to RD.
You've got a Superlite setup yes?
 
The Midilite calipers are drop forged billet aluminium, so offer a decent weight saving compared to the cast OEM caliper. The weight of the Wilwood caliper is 4lb (1.8kg) compared to the OEM 282mm caliper which weighs 3.5kg
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Actually that's the OEM 262mm front caliper from a DC2, I expect the 282 to be a little heavier.
 
went for spoon twinbloc 4pots in the end
oem sized discs & pads ftw.
 
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Concerning pad surface, with wilwood calipers it's 33% smaller than ITR/EK9 OEM pads wouldn't this be a bit problematic particularly with endurance on track?

I used Kozy link (Black Art Dynamics - Threshold Braking Bias Calculator (Honda)) to get an idea compared to OEM setup. At the end it seems there is no much difference except a lot less unsprung weight and a bit higher rotor temprature ...

Is there anybody who went for OEM 282 to these wilwood midilite ?
 
The pad surface wouldn't really have that much of an effect, it will just wear a bit quicker than the larger OEM sized pads. But given a set of DS2500s are roughly 1/2 the price for the Wilwoods compared to OEM it easily balances itself out, as I'd expect them to last longer than the 1/2 way mark.
3-4kg of unsprung weight is not to be sniffed at!
 
Yes, a gain of 3-4kg unsprung weight per knuckle is really a lot that's why I'm thinking about changing calipers but spoon ones are a bit hard to find used, in quite good condition and finaly are very expensive.

How is the pedal feeling with this kit compared to OEM 282 calipers ?

Do you also have 2 parts discs OEM size to fit with calipers ?
 
The pedal is very similar when the 1.5" pistons are used.
We can do a 2 piece disc, but they're around £450 a pair...!
 
FreakyParts said:
The pad surface wouldn't really have that much of an effect, it will just wear a bit quicker than the larger OEM sized pads.
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Well, they'll get hotter, that's for sure.

Standard pads are 2.25" deep, Wilwoods are 2". On a 282mm (11") disc that's a difference in surface area of 10%. Same energy, less area = more heat.

If you are trying to combat fade, putting Wilwoods on a standard sized disc isn't going to help much. You need a 300mm disc to get the same swept area as the standard pads on 282mm discs.
 
Kozy said:
If you are trying to combat fade, putting Wilwoods on a standard sized disc isn't going to help much. You need a 300mm disc to get the same swept area as the standard pads on 282mm discs.
Click to expand...

What i would like is reduce unsprung weight of my drivetrain without killing my braking performance. I currently use ek9 282mm setup with porterfield pads and don't want to regress by swapping calipers for wilwoold ones.
 
If fade isn't the issue you are addressing and you could deal with the brakes potentially running a bit hotter, then go for it.
 
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