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Tires, tires, tires???
Thread Starter
Instructor
Joined: Nov 2014
Posts: 114
Likes: 3
From: Mandeville Louisiana
Tires, tires, tires???
Hey everyone, I've searched and searched, and advanced searched some more. I have a '15 z51, the car came factory with 19/20's and the rear tire is a 285/30 which is a 26.5" tall tire, what's the tallest tire that can be used with a factory height vehicle as the only drag radials I've been able to find average 28.5" tall which seems to me as too tall for the car and could do some damage? I've even looked into 18" rims which I'm still not sure if they will even work with the brake cooling ducts, and all of those drag radials also range from between 28-28.5+ inch tires. Any input would be greatly appreciated.
Burning Brakes
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
Hey everyone, I've searched and searched, and advanced searched some more. I have a '15 z51, the car came factory with 19/20's and the rear tire is a 285/30 which is a 26.5" tall tire, what's the tallest tire that can be used with a factory height vehicle as the only drag radials I've been able to find average 28.5" tall which seems to me as too tall for the car and could do some damage? I've even looked into 18" rims which I'm still not sure if they will even work with the brake cooling ducts, and all of those drag radials also range from between 28-28.5+ inch tires. Any input would be greatly appreciated.
Burning Brakes
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
im running 18x11 inch wheels in the rear and 18x10 on the front, these are the rim sizes with factory offsets that i feel safe with. the new stingray is far from a widebody car. im very happy that even the z51 car fits 18's front and back. there are so many more tire sizes(choices) in 18's than 19's, 20's, 21's. also i have found offset means more on the c7 than c5's or c6's. on my 2002, 2008 it seemed that as long as the bolt pattern fit the tire/ wheel worked. on my c7 having the wrong offset by - 20mm on the rear even with a 315/30/18 tire destroyed my rear inner fender lips.this is why i spent the money on wheels with the right offset with my 2015 on the way. thanks
Racer
Joined: Sep 2014
Posts: 387
Likes: 56
So, am I to assume that even with the perfect offset I couldn't fit a larger tire under my car? I recently ordered some rims and I was planning to put 255/40/19 fronts and 315/35/20 rears. I was gonna stick with the Michelin Super Sport tires. This would in essence run into the same issue as others have with drag radials correct? Thanks!
Thread Starter
Instructor
Joined: Nov 2014
Posts: 114
Likes: 3
From: Mandeville Louisiana
So, am I to assume that even with the perfect offset I couldn't fit a larger tire under my car? I recently ordered some rims and I was planning to put 255/40/19 fronts and 315/35/20 rears. I was gonna stick with the Michelin Super Sport tires. This would in essence run into the same issue as others have with drag radials correct? Thanks!
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
another vote for Ben at Whippin Ex
18x11 or 18x12 with a high offset and a, IMO, 305 drag radial will hook just as good as a 315 or 325 without the extra weight and resistance. 26.5 or 27 inch height.
18x11 or 18x12 with a high offset and a, IMO, 305 drag radial will hook just as good as a 315 or 325 without the extra weight and resistance. 26.5 or 27 inch height.
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Burning Brakes
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
i have posted a few times of the nightmare i had with my rear inner fender lips( they are not there anymore) and the car is traded. i talked to ben x about what would be SAFE for inner lips and work well, i went with the 18x11 because the hoosier i run is rated for a rim size 11 to 12, 315/30/18. the next size is 335/30/18 that would need the 12 inch but is never going to be SAFE to car. my thinking was even with all the neg. camber i plan to run autocross with might protect rear lips. but then the 12 inch might rub hard on the inside of wheel. there is only so much room back there. 315/30/18 on a 18x11 +78 offset is for me a safe way to go.
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
i have posted a few times of the nightmare i had with my rear inner fender lips( they are not there anymore) and the car is traded. i talked to ben x about what would be SAFE for inner lips and work well, i went with the 18x11 because the hoosier i run is rated for a rim size 11 to 12, 315/30/18. the next size is 335/30/18 that would need the 12 inch but is never going to be SAFE to car. my thinking was even with all the neg. camber i plan to run autocross with might protect rear lips. but then the 12 inch might rub hard on the inside of wheel. there is only so much room back there. 315/30/18 on a 18x11 +78 offset is for me a safe way to go.
Dazed Confused & Verklemp
Joined: May 2008
Posts: 1,400
Likes: 110
From: Naples, FL & Clear Lake, IA
I have a Z51 on order.
Wondering if TSW Cray Hawks in 19" x 11" 73 offset on C7 would work with Michelin Pilot Super Sports in size 325 -30-19"????? They are 26.7" tall. Where might they rub? They should have more rear clearance than 78 offset 11" wheels. From TireRack specs, this tire is about 2" wider than stock 285, both in girth and tread.
This is a nice looking wheel with some dish.
Would like to install the widest tire possible without cracking a fender or experiencing inside rubbing issues.
Wondering if TSW Cray Hawks in 19" x 11" 73 offset on C7 would work with Michelin Pilot Super Sports in size 325 -30-19"????? They are 26.7" tall. Where might they rub? They should have more rear clearance than 78 offset 11" wheels. From TireRack specs, this tire is about 2" wider than stock 285, both in girth and tread.
This is a nice looking wheel with some dish.
Would like to install the widest tire possible without cracking a fender or experiencing inside rubbing issues.
Burning Brakes
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
I have a Z51 on order.
Wondering if TSW Cray Hawks in 19" x 11" 73 offset on C7 would work with Michelin Pilot Super Sports in size 325 -30-19"????? They are 26.7" tall. Where might they rub? They should have more rear clearance than 78 offset 11" wheels. From TireRack specs, this tire is about 2" wider than stock 285, both in girth and tread.
This is a nice looking wheel with some dish.
Would like to install the widest tire possible without cracking a fender or experiencing inside rubbing issues.
Wondering if TSW Cray Hawks in 19" x 11" 73 offset on C7 would work with Michelin Pilot Super Sports in size 325 -30-19"????? They are 26.7" tall. Where might they rub? They should have more rear clearance than 78 offset 11" wheels. From TireRack specs, this tire is about 2" wider than stock 285, both in girth and tread.
This is a nice looking wheel with some dish.
Would like to install the widest tire possible without cracking a fender or experiencing inside rubbing issues.