FreakyParts 4 pot brake conversions


Any news on this kit being able to fit 4x100 hubs with MG ZR 282mm discs?
 
There's no reason why the midilite kit bracket cant be made to fit the ZR disk, it'll only be 1-2mm different.
 
What wheels do you need to clear the 4 pots 298 disc or can you use spacers ????
 
It depends on your wheels. I know Team Dynamics 15" wheels clear the spokes, but if you wanted to check yours, there's a template here you can download and place behind your wheel to check the clearance.
 
Doesn't look like they clear the original design Buddy Club P1 Racing due to the reised section on the inner face of the wheel behind the spokes. I think you could get them on but you would need 10mm spacer.
I have noticed the RAYS TE37 does not have this lip so the set i have on the way should clear ok. Fingers crossed.
When i finally have brakes fitted i can start listing wheels that work with the "Ultimate Setup"

Dunx
Dunx
 
can vouch for freakyparts!, got my kit not long ago, fitment is spot on, not had a chance to try them out yet, but so far so good.
 
Thanks, that's alot cheaper than I thought they would be.

Duncan, how do you find the upgrade?

Edit: And which 15" wheels do they fit behind, if you've tried any?
 
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The kit is mental just trying to alter it slightly to able more wheels to fit. The team dynamics pro-race 15" ET35 go straight on, and 16" ENKEI race ET45 (I think) with 10mm spacer. Buddy Club 15's very close fit and I think 15" TE37's will go straight on but need to check.
Dunx
 
Any news on the 4 pot caliper for the ek9? If it fits behind oem wheel?

What kits did you boys above buy? Any more review on fitment? Performance?pics?
 
I have the ultimate setup. Perfect fit but the only issue is wheel fitment. This is being worked on as we speak. 15" Team Dynamics Pro Race fit fine or most 16" wheels with an ET of about 38.
I think the other two kits may work with OEM wheels.
Dunx
 
What kind of surface area difference is there between pads for the Superlites and the OEM pads and are these the forged billet calipers?

Edit: And what are the piston sizes?
 
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Yes, well i actually ordered all the bits myself so i could claim the VAT back.
Dunx
 
I measured my old pads and it looks like Superlite pad = 12x6 (cm) and it seems that OEM pads are 13x5.5 (cm). I was hoping the Superlite pads would be much larger.
 
I've got the measurements on my laptop for the pad sizes which I'll post up later. The pad area is slightly smaller than an oem pad, but because the pad is in contact with a larger diameter disk, the actual area covered by the pad on each rotation is more. I've also got the total piston area coverage comparison between the superlite 4 pot and the standard single piston caliper
 
Ok then, I hope you're sitting comfortably.

EK9 standard:
Pad spec - 148.7x57.7x18mm
Total pad area - 8579.99mm^2
Disk diameter - 282mm
Total sweep area per rotation - 40658.8377mm^2

Wilwood Superlite and 298.5mm disk:
Pad spec - 120.4x61.7x20.3mm
Total pad area - 7428.68mm^2
Disk diameter - 298.5mm
Total sweep area per rotation - 45513.82357mm^2

Difference - 4854.985871mm^2

So for each rotation of the disk when the brakes are being used, you're covering nearly 5000mm^2 more than the standard single piston caliper with the Wilwood Superlites and the larger diameter disks. With the pad being slightly smaller in area, it will wear quicker as it's travelling further per rotation, but to compensate that, the pads are 2mm thicker each side, so you're getting an extra 4mm of pad material.

Also something to bear in mind is the piston area you've got applying pressure to that pad.
Assuming the single piston is the same diameter as the DC2 (57.2mm) you have a total piston area of 2569.6971mm^2. With the Superlite caliper using 4x 44.5mm pistons, you have a total piston area of 3110.5694mm^2, a difference of 540.8723mm^2.

Pad size isn't the be all and end all of brakes. You really need a complete package to complement the pads. If you can apply more force to the pads, more evenly and have the pads travel further per rotation, you're going to achieve better modulation meaning you have the ability to find the point just before the brakes lock up easier (which is the point you want to get to - a locked wheel will slow you down slower than one just before the limit). Also with the pads travelling further per rotation, and the disks being 32mm thick instead of 23mm the disks have more time to cool down before the pad comes into contact with that section of the disk so you're not going to cook your brakes.
 
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