Rims size question
Pro
Joined: Mar 2009
Posts: 594
Likes: 3
From: El Paso Texas
for while i ran 18''s in the rear with 275/45's on them and they were kinda tight, when hitting a bump or watever the tire would rub the well. no idea on the 19'' tho. i think someones put new ZR1 19's on thier C4.
Safety Car
Joined: Jun 2009
Posts: 4,738
Likes: 15
From: OC Calif
St. Jude Donor '10
The fronts fit no problem- need to change tires to 245/40/18 to maintain same tire diameter
Rears you need a 1" adapter- and run 285/30/19 tires
Safety Car
Joined: Jun 2009
Posts: 4,738
Likes: 15
From: OC Calif
St. Jude Donor '10
that was way too large of a tire- stock is 275/40 and you needed to go with 275/35 when upsizing to an 18" tire
Safety Car
Joined: Jun 2009
Posts: 4,738
Likes: 15
From: OC Calif
St. Jude Donor '10
Fronts are 18x9.5 w/40mm offset- wheel will come out 3/4" of an inch from stock- will fit but may not like the look of the tire outside of the fender
Rears are 59mm offsets, but on a 12" wide rim, not a 9.5 rim as C4 stock- this wheel will rub the inner fender without spacers- and will stick out with spacers. Spacers needed are 2" which to me are not safe to run.
C6 Z06 work good on a ZR1 only
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Safety Car
Joined: Jun 2009
Posts: 4,738
Likes: 15
From: OC Calif
St. Jude Donor '10
you are correct on the 19" tire- can run 275/30 to 295/30. Preferably 295, as the 275 looks like too small of a tire on that big rim, unless you go 275/35.