Wheels and tires
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Pro
Joined: Apr 2009
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From: God's Country Wisconsin
Wheels and tires
I just completed my rear wide body conversion a couple of weeks ago and now I'm in the market for new tires and wheels. Although the car is stored and put away for the winter, I feel I should start looking at what I'm going to put on this car before spring. What I need to know is what size tires and wheel will work? I did not, nor do I plan on doing the front conversion. I have heard that I can go up to a 345 tire on a 19 x 12 wheel for the back, but I'm not sure what size I can go with on the front? I also have heard that I must try and go with the largest tire and wheel upfront to help with the handling because of the larger rear wheels and tires? I do not want anything protruding past the wheels wells. I also do not know much about wheel offsets. I have PM'd several of our members on this and everyone seems to be doing something different. For wheels, I plan on getting black Z06's.
Thanks,
Mike
Thanks,
Mike
Burning Brakes
Joined: Jan 2005
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From: Frankfort Illinois
I have the widebody rear with chrome 19X12's. Currently have 325/30/19 on rear & I plan on purchasing the new Nitto NT05R drag radial when they are released in 345/30/19. The front end is stock C6 so I will keep the 275/35/18 Goodyear F1's up there.
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From: God's Country Wisconsin
What size wheel do you have up front?
Thread Starter
Pro
Joined: Apr 2009
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From: God's Country Wisconsin
I also want to stick with a run flat tire. I have been told through a tire dealer that the largest tire made in a run flat is 325 and nothing larger than that? Not sure if that is true?
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From: God's Country Wisconsin
I know some of these guy's are running 18 x 9.5 with 275's on the front. 'm just not sure how this would look and if these tires stick past the wheel wells? I guess to simplify my question, what is the largest tire I can run on an 18 x 8.5 wheel without sticking past the wheel well? Or can I run an 18 x 9.5 wheel with a 265 and stick past the wheel? I just want to run a larger tire upfront to help with compensating the larger tire in back?
Mike
Mike
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Safety Car
Joined: Sep 2007
Posts: 4,359
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From: Los Alamitos California
St. Jude Donor '09
I know some of these guy's are running 18 x 9.5 with 275's on the front. 'm just not sure how this would look and if these tires stick past the wheel wells? I guess to simplify my question, what is the largest tire I can run on an 18 x 8.5 wheel without sticking past the wheel well? Or can I run an 18 x 9.5 wheel with a 265 and stick past the wheel? I just want to run a larger tire upfront to help with compensating the larger tire in back?
Mike
Mike
San
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From: God's Country Wisconsin
You can run a 275 in the front easily. The key is you need a wheel with the right offset. I run an 18X10.5 in the front with 295/30/18 Toyo R888s. Here's a pic from the front of the car and the wheels haven't been aligned yet. 275 is a piece of cake under the stock front wheelwells.
San
San
Mike
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From: God's Country Wisconsin
[QUOTE=timd38;1572835091]Call CCW and tell them what you want to do and they will build you what you need.
Really nice people.[/QUOTE
Hey Tim. CCW? What do you think I'm made of money?
Really nice people.[/QUOTE
Hey Tim. CCW? What do you think I'm made of money?
Safety Car
Joined: Sep 2007
Posts: 4,359
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From: Los Alamitos California
St. Jude Donor '09
Thanks San. So I could run 18 x 10.5's in the front with 295's with my stock C6 quarter panels? The rear I could run 19 x 12's with 325's and the match in tire size, front and back wouldn't affect the handling? Are you Nitto's runflats? I really want to stay with runflats. Also, what are you front and rear offsets on your set up. I'm writing all of this stuff down and keeping a record to help me better understand all of this offset stuff. I good friend of mine has an offset gauge, but hasn't been over to look at the car yet.
Mike
Mike
I would recommend going with a wheel that will accomodate the largest tires and brakes that you intend to use. If you're not going to run a big brake kit you don't need the 10.5 in the front. But you have to insure you get the offset right. I run CCWs myself and John at CCW is the master at building you a wheelset to fit your particular needs. I personally think you'd be fine with an 18X9.5 front and 19X12 rear (stock Z06 widths) to accomodate 275s and 325s. You'll also be able to find runflats in those sizes more readily. If you have more questions let me know.
San
Last edited by oldmansan; Jan 21, 2010 at 09:12 PM.
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From: God's Country Wisconsin
I personally would try to keep the stagger close to stock. For example, the stock tires are 245 and 285 respectively. I went up five sizes in the front and rear with 295 and 335 respectively. If you're only going to 327s in the rear, you might be better off with the 275s in the front. My Toyos are not runflats. You also need to keep the difference in circumference between the front and rear to ~1 inch, with the rear being taller. Otherwise the active handling will think that there is wheelspin and can kick in.
I would recommend going with a wheel that will accomodate the largest tires and brakes that you intend to use. If you're not going to run a big brake kit you don't need the 10.5 in the front. But you have to insure you get the offset right. I run CCWs myself and John at CCW is the master at building you a wheelset to fit your particular needs. I personally think you'd be fine with an 18X9.5 front and 19X12 rear (stock Z06 widths) to accomodate 275s and 325s. You'll also be able to find runflats in those sizes more readily. If you have more questions let me know.
San
I would recommend going with a wheel that will accomodate the largest tires and brakes that you intend to use. If you're not going to run a big brake kit you don't need the 10.5 in the front. But you have to insure you get the offset right. I run CCWs myself and John at CCW is the master at building you a wheelset to fit your particular needs. I personally think you'd be fine with an 18X9.5 front and 19X12 rear (stock Z06 widths) to accomodate 275s and 325s. You'll also be able to find runflats in those sizes more readily. If you have more questions let me know.
San
This might be the best response I've heard yet. Straight answers and to the point. I guess I'll eat crow and go ahead and spend a little bit of money and do this right way. Thanks everyones help. I guess I have my answer and put this to bed.
Tim.
I'll get up one of these weekends and check out the garage.
Mike
Race Director
Joined: Oct 2007
Posts: 11,367
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From: Edgewood Washington
St. Jude Donor '11-'12-'13-'14-'15
According to CCW, the widest 18" wheel you can run in the front and not extend past the stock C6 fender, and clear Z06 Brakes is 9.5". You can run 10"+ but not with the big brakes.
You can get a 345/19 Runflat Tire from Michelin, PS ZP (not PS2) and it will fit on a 12" or 13" wide rear wheel if you have the widebody rear end.
Personally I have CCW T10 wheels, 18X9.5 with 275/35 fronts and 19X13 with 345/30 rears. Michelin PS ZP's. Z06 rear fenders, stock C6 fronts. Z06 Brakes.
So I'm not making this up........... Probably more money than you are looking to spend though.
Good Luck.
You can get a 345/19 Runflat Tire from Michelin, PS ZP (not PS2) and it will fit on a 12" or 13" wide rear wheel if you have the widebody rear end.
Personally I have CCW T10 wheels, 18X9.5 with 275/35 fronts and 19X13 with 345/30 rears. Michelin PS ZP's. Z06 rear fenders, stock C6 fronts. Z06 Brakes.
So I'm not making this up........... Probably more money than you are looking to spend though.
Good Luck.
Thread Starter
Pro
Joined: Apr 2009
Posts: 622
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From: God's Country Wisconsin
According to CCW, the widest 18" wheel you can run in the front and not extend past the stock C6 fender, and clear Z06 Brakes is 9.5". You can run 10"+ but not with the big brakes.
You can get a 345/19 Runflat Tire from Michelin, PS ZP (not PS2) and it will fit on a 12" or 13" wide rear wheel if you have the widebody rear end.
Personally I have CCW T10 wheels, 18X9.5 with 275/35 fronts and 19X13 with 345/30 rears. Michelin PS ZP's. Z06 rear fenders, stock C6 fronts. Z06 Brakes.
So I'm not making this up........... Probably more money than you are looking to spend though.
Good Luck.
You can get a 345/19 Runflat Tire from Michelin, PS ZP (not PS2) and it will fit on a 12" or 13" wide rear wheel if you have the widebody rear end.
Personally I have CCW T10 wheels, 18X9.5 with 275/35 fronts and 19X13 with 345/30 rears. Michelin PS ZP's. Z06 rear fenders, stock C6 fronts. Z06 Brakes.
So I'm not making this up........... Probably more money than you are looking to spend though.
Good Luck.
I was looking at the CCW website after San responded. The 505a wheels in black would be a good choice for me I think. Since I have a buyer for the wheels and tires I have now, it really wouldn't be that much more for me to spend? I have a Z51 with the standard brakes, so I don't think it would be an issue with clearance.
Can I run 345's on a 19 x 12 wheel? I do have the rear wide body and stock C6 front.
Safety Car
Joined: Sep 2007
Posts: 4,359
Likes: 6
From: Los Alamitos California
St. Jude Donor '09
According to CCW, the widest 18" wheel you can run in the front and not extend past the stock C6 fender, and clear Z06 Brakes is 9.5". You can run 10"+ but not with the big brakes.
You can get a 345/19 Runflat Tire from Michelin, PS ZP (not PS2) and it will fit on a 12" or 13" wide rear wheel if you have the widebody rear end.
Personally I have CCW T10 wheels, 18X9.5 with 275/35 fronts and 19X13 with 345/30 rears. Michelin PS ZP's. Z06 rear fenders, stock C6 fronts. Z06 Brakes.
So I'm not making this up........... Probably more money than you are looking to spend though.
Good Luck.
You can get a 345/19 Runflat Tire from Michelin, PS ZP (not PS2) and it will fit on a 12" or 13" wide rear wheel if you have the widebody rear end.
Personally I have CCW T10 wheels, 18X9.5 with 275/35 fronts and 19X13 with 345/30 rears. Michelin PS ZP's. Z06 rear fenders, stock C6 fronts. Z06 Brakes.
So I'm not making this up........... Probably more money than you are looking to spend though.
Good Luck.
From the front (stock alignment, will add negative camber soon)
Front brakes
Rear brakes
Front wheel
Rear wheel
Side shot (before coilover installation)
Obviously you can run wider than a 10" front wheel with big brakes and the right wheels. Research twice, purchase once.
San
Last edited by oldmansan; Jan 21, 2010 at 10:33 PM.