how big ? - Team Camaro Tech
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post #1 of 33 (permalink) Old Apr 8th, 11, 10:27 PM Thread Starter
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Chris
 
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how big ?

How big of a tire can I fit in my 68 if its mini tubed and the leafs are still in stock location? Im wanting to try and run a 15x10 wheel and as much rubber as possible.Thanks
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post #2 of 33 (permalink) Old Apr 10th, 11, 01:35 PM Thread Starter
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Re: how big ?

Anyone?
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post #3 of 33 (permalink) Old Apr 10th, 11, 05:49 PM
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Re: how big ?

What about your shocks? Inboard or original location?
How wide are your tubs?
Is the leaf the hard limit factor?
Big sidewall tires flex a lot, and you cannot get as close to the leaf with a doughnut tire like you can with a low profile tire.

You will probably have to mock it up and take measurements to be safe.
I don't know anyone that has tubbed a car and not followed through with moving springs, since that is the easiest part of the project.

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post #4 of 33 (permalink) Old Apr 10th, 11, 06:59 PM Thread Starter
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Re: how big ?

shocks will be inboard
tubs are the dynacorn pieces stated as 2" wider than stock but i think more than that
yes leaf is hard limit factor but im pretty sure im gonna go ahead and move them if i can figure out what kind of tank setup i can run,dont realy want to put a cell in the trunk but dont want to spend 1k on a tank either
I will be running 28" tall drag radial tires
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post #5 of 33 (permalink) Old Apr 11th, 11, 12:57 PM
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Re: how big ?

I made my own offset shackles, and they are @ 1.25" offset. That is the limit that you can go and still use a stock tank with no mods.
I did not notch my frame rails, and now the rails are my hard limit.

I'm running 18 x 10 wheels, a 315 series tire is about it for my application.
I stayed with 10" rims (11" would easily fit) but the extra cost for the non standard, upsize 1" just did not make sense.

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post #6 of 33 (permalink) Old Apr 11th, 11, 01:22 PM
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Re: how big ?

I have the same set up. 10'' rim with shocks inbound. The most I could get on the rear was a 28"od with a 12" section width on a 15". My car is lowered 1.5" in rear. If i go any wider the side wall will rub wheel lip. I also have less than a 1/2 clearance between sidewall and leaf spring. I think on a drag radial the most you will be able to fit is a 275/60 bfg or a mt 295/55. I tried a 325/50 bfg drag radial with a 13' section and the side wall was just to much. Btw my car is a 67. I do like the idea of moving springs in.
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post #7 of 33 (permalink) Old Apr 11th, 11, 04:36 PM Thread Starter
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Re: how big ?

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Originally Posted by chops View Post
I made my own offset shackles, and they are @ 1.25" offset. That is the limit that you can go and still use a stock tank with no mods.
I did not notch my frame rails, and now the rails are my hard limit.

I'm running 18 x 10 wheels, a 315 series tire is about it for my application.
I stayed with 10" rims (11" would easily fit) but the extra cost for the non standard, upsize 1" just did not make sense.
Do you have any pics of your offset shackles? That would work great to use a stock tank and I have alittle more room for tires as my car is now mini tubed,Thanks
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post #8 of 33 (permalink) Old Apr 11th, 11, 07:04 PM
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Re: how big ?

Here is a shot from metal stock to finish. I think I made the driver side first, and the last metal piece is turned around for the camera.

I wanted to emulate the relative size, thickness of the stock shackles, with additional support added. I have a '69 so use your own measurements to be sure this is what you want to do, but like I stated 1.25" is the extreme limit to offset and keep an unmodified fuel tank. Even then I used special bolts, with the heads to the tank side, to keep the hardware off the tank. I moved the spring perches inboard accordingly, and that was no big deal either.
I've put it through the acid test of speed bumps, street dips/holes and the like and it is solid with zero tank interference, but again you have to make that call. Good luck!


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post #9 of 33 (permalink) Old Apr 11th, 11, 08:12 PM Thread Starter
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Re: how big ?

Thanks for the pics Greg.
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post #10 of 33 (permalink) Old Apr 12th, 11, 02:34 AM
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Re: how big ?

I would put your wheel back on and measure everything...

I would "think" a 2" wider wheel with 1.5" more tire would fit ?
15 x 10 w/ 6.25"-6.5"BS
and a tire in the 300-315 range ?


Need others with the DSE's to respond

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #11 of 33 (permalink) Old Apr 12th, 11, 01:54 PM
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Re: how big ?

I would like to see some tire and rim picks along with size
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post #12 of 33 (permalink) Old Apr 12th, 11, 04:12 PM Thread Starter
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Re: how big ?

X2^^^^^^
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post #13 of 33 (permalink) Old Apr 12th, 11, 04:47 PM
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Re: how big ?

This is a 275/60/15 on a 10'' rim. my inners are up against my frame rails and as you can see I don't have much room left on wheel lip or springs with a 1.5'' drop. I did have a mt with a 12" section width that fit but the tire was way to short at 26'' od. I guess I really need to move springs??? Any feed back or pics

Last edited by JR67RS; Nov 13th, 11 at 04:26 PM.
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post #14 of 33 (permalink) Old Apr 12th, 11, 04:51 PM Thread Starter
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Re: how big ?

Yours is a stock wheel tub still right?
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post #15 of 33 (permalink) Old Apr 12th, 11, 05:00 PM
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Re: how big ?

Nope. The inners are against my frame rails.
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