We did a little brake upgrade on the Evo last week...
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3 comments:
You dont need more surface.... the pads are only so big and the new rotor is 2 piece. The slots dont matter which way they go. Its the internal veins that matter which are going the correct way. Yes it has a larger diameter however it has cut the weight by 13lbs, I think; can't find the link. So actually it will be BETTER than stock. The best part of these brakes is that they are 2 piece!
Darryl,
Two non-techie questions:
1. Can you notice the difference?
2. How difficult was the work?
Thanks!
dildo: I think your total surface area theory is a misconception...or optical illusion. While it's true there is a shorter distance ACROSS the swept area, it is now located further away from the center, so the circuference is greater, adding area and making up for the shorter distance across. PLUS, the working area is now concentrated out near the edge, where the calipers have more leverage. PLUS the 6 piston units spread the load out along the surface more than before, utilizing longer pads, giving it even more gripping force out near that high-leverage edge. Hope that makes sense.
Didn't do it so much for looks, as performance. I had done everything I could to help the stockers work their best, (pads, fluid, SS lines) but went through 2 sets of rotors in less than a year, first being the smooth stockers, second being slotted, and I wasn't going to just keep buying rotors so I could screw them up.
The aluminum hats reduce the overall weight to less than the stock one-piece rotors, so it actually helps acceleration.
And yes the Brembos had dibs on 'em before I even got these on.
Jeff: Yeah they do hold up a lot better across a full run. Before the stock size brakes would start to fade about halfway across on a hard run, and I had to kinda babysit them to make it through without losing the brakes. These don't necessarily brake stronger, but they're equal or better in that area. (hard to say since the stockers would lock up the tires until the brakes overheated) But these are just more consistent over a long run.
They were pretty easy to install, just 4 bolts once you get the wheels off, then an extensive air bleed. (the calipers are empty at first, so full of air) The bleed screws leaked a little at first, but I worked them down now and I think they're not leaking anymore.
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