C5 front rotor offset? (paging toddlsf)
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From: State College, PA
Car: '89 Formula
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C5 front rotor offset? (paging toddlsf)
Would anyone happen to know the exact offset of a C5 front rotor? (Distance from the inboard face of the disc to the inboard face of the surface that sits against the hub)
Also, what is the exact diameter of the rotor? Is is 12.6" or 13"?
Thanks,
Tom
Also, what is the exact diameter of the rotor? Is is 12.6" or 13"?
Thanks,
Tom
Last edited by Colt; Mar 21, 2004 at 01:03 AM.
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
"I have no idea on the offset, but it's a true 13" rotor."
EDIT: I'm wrong, sorry.
Ed
EDIT: I'm wrong, sorry.
Ed
Last edited by ebmiller88; Mar 22, 2004 at 05:53 AM.
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Joined: Jul 1999
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From: State College, PA
Car: '89 Formula
Engine: 383 Megasquirt
Transmission: T-56
Axle/Gears: 7.625
Thanks Ed.
Maybe someone will chime in with the offset. If the offset is withing my usable range I may be using C5 rotors with my front Wilwood caliper setup. C5 rotors are slightly cheaper and easier to get then a two piece rotor. Especially if the C5 rotors are lightly used.
Tom
Maybe someone will chime in with the offset. If the offset is withing my usable range I may be using C5 rotors with my front Wilwood caliper setup. C5 rotors are slightly cheaper and easier to get then a two piece rotor. Especially if the C5 rotors are lightly used.
Tom
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From: Another world, some other time
Car: 86 LG4 & 92 TBI Firebird
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Originally posted by ebmiller88
I have no idea on the offset, but it's a true 13" rotor.
Ed
I have no idea on the offset, but it's a true 13" rotor.
Ed
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From: Another world, some other time
Car: 86 LG4 & 92 TBI Firebird
Engine: The Mighty 305!
Transmission: 700R4
Axle/Gears: 3.42
Originally posted by Colt
Justin,
Do you have a link to that comparison on the corvette forum? I couldn't find it.
Tom
Justin,
Do you have a link to that comparison on the corvette forum? I couldn't find it.
Tom
http://www.superchevyperformance.com/misc/c5brakes.asp
Here's a good comparo for C4 calipers
http://www.superchevyperformance.com...4calipers.html
Last edited by Justins86bird; Mar 21, 2004 at 02:29 PM.
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Member
Joined: Jul 1999
Posts: 373
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From: State College, PA
Car: '89 Formula
Engine: 383 Megasquirt
Transmission: T-56
Axle/Gears: 7.625
Thanks Justin.
Too bad they didn't list an exact diameter or offset on that page. I'm looking for someone who can mic the dimensions so they can be pretty close to exact. I need to know them so I can set my caliper distances.
Tom
Too bad they didn't list an exact diameter or offset on that page. I'm looking for someone who can mic the dimensions so they can be pretty close to exact. I need to know them so I can set my caliper distances.
Tom
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From: Atlanta, GA/ Clemson, SC
Car: 1991 Camaro Z28
Transmission: T56
I just measured my PowerSlot C5 rotors that I have sitting here until the rest of my parts get in. The diameter is 12.75" and the offset is 1.5" Let me know if you need any other dimensions.
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Joined: Jul 1999
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From: State College, PA
Car: '89 Formula
Engine: 383 Megasquirt
Transmission: T-56
Axle/Gears: 7.625
Steve, thanks for the measurements. You're absolutely sure the 1.5" offset is the same distance as in the picture below??
...
If that's the case then that means the built in hat has a .250" offset. Wow, that is small.
Tom
...
If that's the case then that means the built in hat has a .250" offset. Wow, that is small.
Tom
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From: Sulphur Springs, IN
Yep, the distance in your picture is 1.5 inches. Sorry that I didn't see this post earlier. I went on vacation for about a week and a half and am now just catching up. FYI, you can get the C5 rotors really cheap at NAPA. I think they are only like $20 - $25.
Todd
Todd
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From: In the Garage
Car: Camaro
Engine: 6.2L
Transmission: T56
Hey guys,
I have just bought the calipers and rotors from NAPA $23ea ( man thats so cheap I can nery beliv it ) off ebay to do this swap and have heard conflicting opinions on the thickness of steel required for the adapter plates. Did you use 1/2" or 5/8"? Thanks
I have just bought the calipers and rotors from NAPA $23ea ( man thats so cheap I can nery beliv it ) off ebay to do this swap and have heard conflicting opinions on the thickness of steel required for the adapter plates. Did you use 1/2" or 5/8"? Thanks
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