C5 rear rotors on a C4?
Thread Starter
Safety Car
Joined: May 2003
Posts: 4,283
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From: Houston Texas
C5 rear rotors on a C4?
Any body ever try a set of C5 rotors on a C4? I know of the difference in the parking brakes, just want to know if they will fit. Got a great deal on some Baer Eradispeed +2 14inch rear rotors and caliper brackets. Won't have a chance till next weekend to see if they will even fit.
Melting Slicks
Joined: Oct 2006
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From: College Station TX
Race Director
Joined: Jun 2004
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From: WI
Any body ever try a set of C5 rotors on a C4? I know of the difference in the parking brakes, just want to know if they will fit. Got a great deal on some Baer Eradispeed +2 14inch rear rotors and caliper brackets. Won't have a chance till next weekend to see if they will even fit.
Instructor
Joined: Dec 2006
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From: Savannah Georgia
Melting Slicks
Joined: Oct 2006
Posts: 2,238
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From: College Station TX
Ah, ok, I re-read his original post. The C5 caliper brackets won't fit a C4 anyway, so all of this is a moot point.
Team Owner
Joined: Sep 2001
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From: Athens AL
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You have to use the expensive adapters if you dont have access to machines yourself, but I know they make them and have seen a couple here with them before.
I dont believe you will get the improvement in braking that you want to get though.
I dont believe you will get the improvement in braking that you want to get though.
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Thread Starter
Safety Car
Joined: May 2003
Posts: 4,283
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From: Houston Texas
The 14 inch rotors cam with the expensive Baer brackets to use with C5 stock rear calipers. Gonna see if I can make the stock C4 calipers work in its place so I can retain my E brake. I have 18x11 Mallett wheels. They make the 12 inch rotors look small. So it is an aesthetics thing. Plus, I am going to put the 06 Z06 calipers and some Baer 14 inch rotors on the front.
Team Owner
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I can't wait to see which one of us (C4) will attempt to install a LS9 in a C4.
I can't wait to see which one of us (C4) will attempt to install a LS9 in a C4.
Thread Starter
Safety Car
Joined: May 2003
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From: Houston Texas
Thread Starter
Safety Car
Joined: May 2003
Posts: 4,283
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From: Houston Texas
Well finally got around to trying these out. Rotors fit no problem even with the Ebrake drum on the inside. Problem is the thickness of C5/6 rotors on the rear is too wide for C4 rear calipers no matter what. The parking brake mechanism doesn't give enough with for the pads to clear. The caliper will bolt on to the C5/6 abutment brackets since the C4 bracket wont clear the rotor either. Then once again with either C4 or C5 pads, it won't clear. Only way to work is to use C5/6 caliper and abutment bracket and custom make a adaptor to mount to C4 spindle since there is a difference in bolt spacing and sizes. And like others have said above the pad difference is almost nill between the C4 and C5/6 making losing the ebrake not worth it. I just wanted the big 14" rotor back there since it looked damn impressive in my wheels. Oh well, I had to see for myself.
Drifting
Joined: Aug 2006
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From: Delray beach FL
when upgrading the front brakes it is very important to also upgrade the rear brakes to keep a correct balance.
For instance, a stock HD c4 brake system with good pads will be more efficient on a track than an unbalanced ( too much brake force in front) upgraded c5 or bear front brake wirh stock rear brakes.
Having too much front brakes is dangerous even if your upgraded front cools better etc...
Changing front only looking for improvnent is worth it and typicaly done by newbies.
Having c5 rear brakes is a good idea as it will keep the balance right. Understood you will need to equilibrate the system anyway.
For instance, a stock HD c4 brake system with good pads will be more efficient on a track than an unbalanced ( too much brake force in front) upgraded c5 or bear front brake wirh stock rear brakes.
Having too much front brakes is dangerous even if your upgraded front cools better etc...
Changing front only looking for improvnent is worth it and typicaly done by newbies.
Having c5 rear brakes is a good idea as it will keep the balance right. Understood you will need to equilibrate the system anyway.
