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Wilwwod Brake larger rotor fit 15" Rally Wheels?

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304-dude View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Nov/17/2017 at 5:51pm
Originally posted by 343sharpstick 343sharpstick wrote:

Curious how many AMCr's would step up for a serious big brake kit with a 12-inch (or larger) disc and a AP race caliper or similar?
My guess would be very few.


I chose the 13" Mustang GT in front and Explorer 4x4 12" in the rear. A bit big, but I intended for 17" wheels and street use. Though, I am going to 18 wheels for better tire choices.

One thing I am contemplating is dual Firebird T/A aluminum caliper setup, similar to Dononhue tests with the 71 T/A Javelin. Now these days, that we got some pad material that can handle heavy race conditions, no more brake fires.

Just an opinion, smaller pads (at a 180 spread) over a 6 or 8 piston race caliper pad, will allow more even cooling without a lot of duct and fan work.

Though many may say differently, but iron is iron. Bigger, thicker and heavier to compensate for high extremes takes a bit of cooling once they heat up.

For short durations the iron will take time to heat up, so brake pads may need to be selected properly for the heat range, if going with ceramics.

The key is not over heating 15" rims before any sign of brakes overheating. 12" brings the heat closer to the tire, thus changing tire pressure and possibly blowing out a tire bead.

Yep, I am the 1% that will over kill a street use car just to have something fun to take to the track when the itch happens.




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amxess View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote amxess Quote  Post ReplyReply Direct Link To This Post Posted: Nov/19/2017 at 10:05am
After looking at Wilwood's wheel specs diagram, I don't see the larger rotor kit being able to fit in the 15" AMC Rally Wheels. I guess the Machine Wheels are different inner dimension? From Wilwoods specs, the caliper would not fit in the rally wheel. Was hoping someone had tried it. 




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