Rim size question?
Sr.Random input generator
Joined: Jan 2008
Posts: 7,799
Likes: 2,229
From: Sammamish, WA
You should also consider suspension height, camber of wheels and height/width of tires as important parameters. For instance, my 19x11.5" ET83 wheels with 305/30/19 tires do not rub, while the taller and wider 325/30/19 did rub at the track (but not at the street). Actually, I'd not go any taller than those, since they also barely clear the bumper side of fender liners.
Melting Slicks
Joined: Apr 2009
Posts: 2,431
Likes: 77
From: Lake Charles Louisiana
thats not really apples to apples because a 325/30/19 is shorter than the factory tire. we just have problems trying to shove too wide of tires and it creates issues under load (The track guys that is) etc. 325/30 is about 1/2 tenth shorter than stock. I personally run a 295/30/20 on my street tires which is about 2/10s taller and I rubbed a very small amount (26.9x height) But on the flip side I can run a 305 pirelli at 27.33 tall with more camber and have very little issues.
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Burning Brakes
Joined: Jan 2014
Posts: 1,078
Likes: 262
From: swoyersville pa
take it from a guy ( me) that put wheels on my 2014 base car with the wrong offsets ! I busted out the rear inner fender lips and the quarters cracked all over , not much better luck in the front- it was cheaper to trade the car than fix it - not kidding, offsets mean a lot followed by tire size .
Racer
Joined: Aug 2016
Posts: 397
Likes: 39
So for those of us that plan to replace our stock wheels is there a range of offsets we can use or should be stick with the stock offset, whatever that is. For example, I plan to replace the Black OEM 18/19" wheels/tires off my '17 when it arrives with 19/20". I know the tires I select will come into play but my objective is going as big as I can with clearance issues.
Sr.Random input generator
Joined: Jan 2008
Posts: 7,799
Likes: 2,229
From: Sammamish, WA
So for those of us that plan to replace our stock wheels is there a range of offsets we can use or should be stick with the stock offset, whatever that is. For example, I plan to replace the Black OEM 18/19" wheels/tires off my '17 when it arrives with 19/20". I know the tires I select will come into play but my objective is going as big as I can with clearance issues.
Below is a great setup:
18x10.5 ET56 (same offset as OEM) front
19x11.5 ET83 (a little more tucked in than OEM) rear.
OEM offsets (from my notes)
Front: 19-inch x 8.5-inch 56mm offset (with Z51)
Rear: 20-inch x 10-inch 79mm offset (with Z51)
Last edited by X25; Nov 7, 2016 at 06:27 PM. Reason: x
Sr.Random input generator
Joined: Jan 2008
Posts: 7,799
Likes: 2,229
From: Sammamish, WA
Check it out:
http://www.craycorvettewheels.com/
Racer
Joined: Aug 2016
Posts: 397
Likes: 39
AFAIK, those Cray wheels are being manufactured specifically for Corvettes, so you need not fear.
Check it out:
http://www.craycorvettewheels.com/
Check it out:
http://www.craycorvettewheels.com/
Yeah, that is why I am leaning toward them; however, I guess I still need to consider the offset if I am going up, right? Again, my base Stingray comes with 18/19s and I want 19/20s and I see there are 2 Cray options: 19x9 or 19x9.5 / 20x10.5 or 20x11.
Sr.Random input generator
Joined: Jan 2008
Posts: 7,799
Likes: 2,229
From: Sammamish, WA
They show which ones are for front and rear in their fitment guide. Z51 and regular Stingray should be the same (which they indicate by C7 fitment).
Racer
Joined: Aug 2016
Posts: 397
Likes: 39
On a side note I looked up what the cost of my stock 18/19 Black OEM wheels cost (2017 Stingray) and it appears they are between $500 & $600 - really!? Add in the tires and it seems that a set new would be about close to $3k but based on what I saw in the classifieds I'd be lucky to get half that.