C6 rims
Instructor
Joined: Sep 2008
Posts: 152
Likes: 0
From: O'Fallon Missouri
2008 C6 Z06 replica 10 spokes for NON Z06.... 18X9.5 56mm offset. 19X10 63mm offset.
Fronts bolt up anywhere on 84-87 C4. Rears require spacer, no way around it.need a 1/2 more clearance to clear the LCA's
Fronts bolt up anywhere on 84-87 C4. Rears require spacer, no way around it.need a 1/2 more clearance to clear the LCA's
Safety Car
Joined: Jun 2009
Posts: 4,738
Likes: 15
From: OC Calif
St. Jude Donor '10
Stock C6 is 8.5" fronts at 54mm and will fit almost perfect. You might want a 1/2" spacer to bring em out a hair.
The rears are 63mm on 10s, so you will need a 1" adapter
(adapters bolt to the hub and then have their own studs to mount the rim to- spacers have no studs, which means you will want longer studs in the hub to accomodate).
offset is the difference between the center of the wheel to the hub mount.
example- a 10" rim- center is 5". If the 10" wheel had a 'zero' offset, there would be a 5" backspace.
With a 63mm offset, it's aprox 2-1/2" further back from center, so you would add the 5" (center of the wheel) plus the 2-1/2", plus another 1/2" rim lip, for a total of 8" backspace.
Thread Starter
Instructor
Joined: Feb 2010
Posts: 108
Likes: 0
From: Bay Area California
can i trouble you guy's once more,
i would like to put P325/30ZR18 on the back of my "86 coupe
will it fit ? if not, what will, i've heard 315's will
what size rim 10" or 11" and what back spacing will i need 38MM or 50MM
or something custom or a spacer / rim combo so they will not rub.
Thanks for the help !
i would like to put P325/30ZR18 on the back of my "86 coupe
will it fit ? if not, what will, i've heard 315's will
what size rim 10" or 11" and what back spacing will i need 38MM or 50MM
or something custom or a spacer / rim combo so they will not rub.
Thanks for the help !
Race Director
Joined: Oct 2005
Posts: 11,770
Likes: 175
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
can i trouble you guy's once more,
i would like to put P325/30ZR18 on the back of my "86 coupe
will it fit ? if not, what will, i've heard 315's will
what size rim 10" or 11" and what back spacing will i need 38MM or 50MM
or something custom or a spacer / rim combo so they will not rub.
Thanks for the help !
i would like to put P325/30ZR18 on the back of my "86 coupe
will it fit ? if not, what will, i've heard 315's will
what size rim 10" or 11" and what back spacing will i need 38MM or 50MM
or something custom or a spacer / rim combo so they will not rub.
Thanks for the help !
I've searched at Tire Rack and Discount Tire, and neither of them show a tire in that size.
They have a 335/30-18 tire
The recommended rim width is 11.5" - 12.5" though.
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Intermediate
Joined: Jun 2010
Posts: 29
Likes: 0
From: st clair Michigan
sorry guys im a bit confused about off set and back space, i have a 85 and im looking at putting c5 rims (17 in) with 7 in backspacing and i believe the backspacing on a stock c4 85 is 6, so will i need a one in spacer? thanks guys
oh and roughly what does a spacer cost
oh and roughly what does a spacer cost
Safety Car
Joined: Jun 2009
Posts: 4,738
Likes: 15
From: OC Calif
St. Jude Donor '10
sorry guys im a bit confused about off set and back space, i have a 85 and im looking at putting c5 rims (17 in) with 7 in backspacing and i believe the backspacing on a stock c4 85 is 6, so will i need a one in spacer? thanks guys
oh and roughly what does a spacer cost
oh and roughly what does a spacer cost