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Definitive CCW Classic Offset, Diameter, Lowering Thread

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Old May 12, 2014 | 01:29 AM
  #21  
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Mine is one of the cars shown in the original thread where the OP says my front wheels look too flat. Maybe so to him, but when I spoke to John when ordering, I specified the tire size I wanted to run and he provided the maximum width I could fit that would sit at the edge front & rear. The fronts are less dished than the rear but I expected that. I also did not want to cut my rear brake ductwork and they fit without having to do so. So I've got 10" wide fronts and 11" rears. The front tires are 265's because they match the diameter of the stock 17" tires, my wheels are 18" front and rear. So maybe I don't know the backspacing of my wheels but it was never a problem since everything fits right. The OP seems to have a problem with people not knowing every spec. That's the good thing about dealing with John at CCW. You tell him what you want to accomplish and he provides the right solution. Not like when I ordered Boyd wheels for my street rod. Every car is different and I must have measured everything about 18 times before I placed my order. It was a lot of work but it came out right. Also, when at a later date I called John to find out about putting on larger front brakes, I was advised that with Classics you'd need spacers which will put the wheels outside the front fenders. BTW, I'm perfectly happy with the size wheels i purchased.
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Old May 12, 2014 | 06:40 AM
  #22  
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Originally Posted by striper
Mine is one of the cars shown in the original thread where the OP says my front wheels look too flat. Maybe so to him, but when I spoke to John when ordering, I specified the tire size I wanted to run and he provided the maximum width I could fit that would sit at the edge front & rear. The fronts are less dished than the rear but I expected that. I also did not want to cut my rear brake ductwork and they fit without having to do so. So I've got 10" wide fronts and 11" rears. The front tires are 265's because they match the diameter of the stock 17" tires, my wheels are 18" front and rear. So maybe I don't know the backspacing of my wheels but it was never a problem since everything fits right. The OP seems to have a problem with people not knowing every spec. That's the good thing about dealing with John at CCW. You tell him what you want to accomplish and he provides the right solution. Not like when I ordered Boyd wheels for my street rod. Every car is different and I must have measured everything about 18 times before I placed my order. It was a lot of work but it came out right. Also, when at a later date I called John to find out about putting on larger front brakes, I was advised that with Classics you'd need spacers which will put the wheels outside the front fenders. BTW, I'm perfectly happy with the size wheels i purchased.
That's exactly the point I was trying to make. What's so hard to understand that these wheels are CUSTOM and made to order the way the original owner wants them.
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Old May 12, 2014 | 08:17 AM
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Originally Posted by chassed
That's exactly the point I was trying to make. What's so hard to understand that these wheels are CUSTOM and made to order the way the original owner wants them.
That may be the case....but many people like to see and know what sizes they are ordering will look like on the car.
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Old May 12, 2014 | 11:27 AM
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Originally Posted by 93civEJ1
That may be the case....but many people like to see and know what sizes they are ordering will look like on the car.
Understandable. I saw this car and said, I want those lips!
Only info we were able to extract from the owner at the time was lips sizes lol

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Old May 12, 2014 | 11:31 AM
  #25  
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That car is sexy.
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Old May 12, 2014 | 02:32 PM
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Originally Posted by 93civEJ1
That car is sexy.
Yeah it is and it's funny how that car got nothing but positive comments and he has a 285 on the 12" rear lol
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Old May 12, 2014 | 02:57 PM
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How does one stretch a tire? I have a 315 Sumitomo on an 11.5" wheel and there is too much lip showing for my liking. It looks like the tire isn't wide enough for the wheel. What do I tell the tire shop??
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Old May 12, 2014 | 04:07 PM
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If you are the type to specify what you want and prefer to put your trust in the vendor without concerning yourself with technical details, more power to you.

On the flip side, I'm an engineer by trade and I always like to have the specs myself for my own peace of mind, my own analysis.

As the OP mentioned, there seem to be a lot of custom combinations out there when it comes to rim diameter, width, backspacing, lip size, tire size, & ride height. Sometimes I see a CCW combo that looks incredible/aggressive and other times I see a CCW combo that just doesn't look right or doesn't really "pop." The majority of the time, Vette owners haven't the slightest clue as to what the wheel specs are. I've been in the Mustang world, BMW world, Lexus world, and have not yet seen quite this prevalence of people not knowing something as basic as backspacing of their $3000-4000 custom wheels. Is this a Vette thing? The common reply is, "just tell John @ CCW what you want and he'll set you up"

The challenge is that it's not easy to describe what you want with something as technical as wheel fitment without getting into technical specs! If you aren't talking numbers, then there's a lot of room for interpretation and you risk not getting what you expect.

When I pick out wheels, I usually reference the specs to something someone else already done so I know exactly what I'm getting. I see how it looks and I get all the numbers before I place the order. But I'm probably pickier than most.

Just my picky 2 cents.

Last edited by luke87gt; May 12, 2014 at 04:33 PM.
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Old May 12, 2014 | 04:10 PM
  #29  
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Originally Posted by lxcoupe
How does one stretch a tire? I have a 315 Sumitomo on an 11.5" wheel and there is too much lip showing for my liking. It looks like the tire isn't wide enough for the wheel. What do I tell the tire shop??
Chris, there's absolutely nothing you can do...

"stretching a tire" simply means running a tire with tread width narrower than the rim. There's nothing that can be done by a tire shop to physically "stretch" a tire any more or less on any given rim.

In the import world, I've seen guys run 245/35 on 19x11 rims, lol. You just mount them normally and hit them with the compressed air. If the bead contacts the rim lip, more often than not it'll fill up with air. That's definitely not safe however. Another interesting thing is that in extreme "stretched" set-ups, the overall height of the tire shrinks because the sidewall is no longer vertical but rather at an angle bringing the tread closer to the rim.

Do you have a pic of the 315mm Sumis on the 11x.5?

Last edited by luke87gt; May 12, 2014 at 04:22 PM.
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Old May 12, 2014 | 07:38 PM
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315 sumitomos run narrow for being a 315. That's why you're getting a stretch. Get a different/better tire.....


And for the interest of this thread

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Old May 12, 2014 | 07:44 PM
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I found 2 good used inner shells so I'm gonna convert all 4 wheels to 10.5" when it's tire time (still looking for 2 more shells).

If there's one thing that's really interesting about this CCW thread, it's this: there is no 1 formula that works for everyone. Some guys want the wheels flush with the fenders, others want 3" lips in the rear and are willing to have the wheels stick out a bit. Others want to run a narrower tire for that "stretched" look. Others like the race versions with extra holes, some like polished, others like black centers, other's like 17's, most like 18's, etc etc
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Old May 12, 2014 | 08:27 PM
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You're exactly right! If they were all the same, how boring would that be...

I just love classics so I'll keep chiming in lol
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Old May 12, 2014 | 10:30 PM
  #33  
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Originally Posted by chassed
315 sumitomos run narrow for being a 315. That's why you're getting a stretch. Get a different/better tire.....


And for the interest of this thread

Wait, which car has those wheels? I'd expect them to stick out quite a bit. Very interested to see these on a c5

Last edited by luke87gt; May 12, 2014 at 10:41 PM.
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Old May 12, 2014 | 10:54 PM
  #34  
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Those specs are for My old silver coupe posted in the OP and the yellow Z06 vette I just posted.
I ordered an identical set but with a different center finish.
That build sheet I posted is the current set I just ordered for my black Z06.
Should look killer...

Last edited by chassed; May 12, 2014 at 10:59 PM.
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Old May 12, 2014 | 10:57 PM
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Old May 12, 2014 | 10:58 PM
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You ran a 285/35 rear?

What size front?

That stretched look isn't common outside of the import world but I have to say, it's growing in my after seeing the yellow car!
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Old May 12, 2014 | 11:02 PM
  #37  
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For a street application, ccw recommended:

18x10 7.75"
18x11.5 8.75"

You have:
18x10 7.125"
18x12 8.50"

I think if I were ordering new I'd split the difference and do something like

18x10 7.5"
18x11.5 8.25"
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To Definitive CCW Classic Offset, Diameter, Lowering Thread

Old May 12, 2014 | 11:06 PM
  #38  
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Originally Posted by luke87gt
You ran a 285/35 rear?

What size front?

That stretched look isn't common outside of the import world but I have to say, it's growing in my after seeing the yellow car!
The Yellow Z06 has a 285/35/18 rear and 255/35/18 front....

My old silver coupe has 295/30/18 rear and 265/35/18
Ive found that the brand of the tire and how wide or narrow it runs makes a huge difference as far as the way the stretch looks goes.
That's why I went with a 30 serious tire so that the side wall didn't bulge upward as much.

Last edited by chassed; May 12, 2014 at 11:09 PM.
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Old May 12, 2014 | 11:08 PM
  #39  
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Yes, tire brand/model can play a huge role
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Old May 12, 2014 | 11:08 PM
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Originally Posted by luke87gt
For a street application, ccw recommended:

18x10 7.75"
18x11.5 8.75"

You have:
18x10 7.125"
18x12 8.50"

I think if I were ordering new I'd split the difference and do something like

18x10 7.5"
18x11.5 8.25"

I get what you're saying and I did consider that, BUT I didn't want to comprimse lip size lol so I went ahead and just went with the same specs I had previously had.
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