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Author
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Topic: biggest slick on a fox??????
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project_stangs88
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Member # 4599
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posted
 
 
whats the biggest slick you can fit on a 93 gt mustang, i bought some 28-10.5-15 mt drag slicks and just wondering if they will fit, they will be going on a 15 by 8 welds rims, thanks any info would be very appreciated
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got my 65 mustang back! (bonny)! roller...
Posts: 1518 | From: Sunnyvale | Registered: Jun 2004
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JohnB
Tech Moderator
Member # 969
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posted
What's the backspacing on the rim? What springs? Control arms? Wheelwell lip rolled or no?
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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93PONY
Mr. Valve Events
Member # 60
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posted
You can fit a 28" slick, but it's best to run adjustable length lower control arms to center the wheel in the well.
GT's ground effects are spaced 29" from front to rear of the wheel well so a 28" bias ply tire will probably end up rubbing the ground effects at high speed since those tires will grow ~an inch depending on rim width. This can be minimized with a wider wheel, but then you have to deal with backspacing issues.
LX's & 93 Cobra ground effects have an extra 1 inch of clearance & won't have problems with 28" tires. SN95's have another inch of clearance.
Also note that some tires labled as 28" are not really 28" tall. MT 28x9x15's measure 27.3" tall for instance. Also note that bias ply tires are not all the same size as marked. It's not uncomon to find 2 identical tire sized of the same brand/type that measre 1" different in roll-out. For this very reason Hoosier measures, marks, & pairs tires based on rollout measurments.
Before a Bias ply tire is heat cycled for the first time, you can 'stretch' the tire by inflating it with ~60+psi air pressure. Some tires you can expand by 1" roll-out. Once you heat cycle them (burnout), they stay that size for good.
I have a set of 26x8.5x15 MT ET drags & a set of Hoosier 26x10x15 slicks. On the same width rim, the Hoosiers are at least a full inch taller.
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www.advancedenginedevelopment.com
SCT dealer
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Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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BlowN67
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Member # 4229
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posted
quote:
Originally posted by JohnB:
What's the backspacing on the rim? What springs? Control arms? Wheelwell lip rolled or no?
shoot him in the right direction.. I think he's open to see if they will fit..
from the ? u ask him john i guees they must fit or u would of just said nah they wont fit. so i see some lite there for him.. hope it works out for ya.. good luck ![[patriot]](graemlins/patriot.gif)
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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JohnB
Tech Moderator
Member # 969
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posted
quote:
Originally posted by 93PONY:
I have a set of 26x8.5x15 MT ET drags & a set of Hoosier 26x10x15 slicks. On the same width rim, the Hoosiers are at least a full inch taller.
That's because the rim is better suited for tire #1 vs. tire #2. When a wider tire is put on a rim that's at the min width, you will decrease the contact patch and increase the active sidewall height.
As for the setup, it's completely dependent on the backspacing. MT's will work, stock control arms and springs will work, MM control arms and Eibach drag kit will work...I've used them all. If it's a standard Mustang backspacing (4.5"), the most he'll run up against is rubbing the inner well and needing to roll the lip.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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93PONY
Mr. Valve Events
Member # 60
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posted
quote:
Originally posted by JohnB:
quote:
Originally posted by 93PONY:
I have a set of 26x8.5x15 MT ET drags & a set of Hoosier 26x10x15 slicks. On the same width rim, the Hoosiers are at least a full inch taller.
That's because the rim is better suited for tire #1 vs. tire #2. When a wider tire is put on a rim that's at the min width, you will decrease the contact patch and increase the active sidewall height.
No, actually it's because the MT's have an advertised 82" rollout, but measured 81" off the rim & the Hoosiers are advertised at 83", but measured 84.5" off the rim. Both advertised at 26" tall.
81" rollout = 25.8" tall
84.5" rollout = 26.9" tall
You never know exactly what you're going to get till it shows up at your door.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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JohnB
Tech Moderator
Member # 969
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posted
Yup, different manufacturers do things differently.
Just like MT took those measurements on a 8" rim, Hoosier on a 9".
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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2stangs69-91
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Member # 1951
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posted
on my 91 28 X 10.5 X 15 mt drags rubbed in the front and rear of the wheel openings enough to rub the paint off.
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69 Mustang on hold
1991 LX hatch getting a make over
1994 F150 4X4 351
2006 Yamaha V-max 1200 Modded
Posts: 3711 | From: Redding | Registered: Oct 2002
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project_stangs88
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Member # 4599
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posted
they are going on a 4.5 back spacing rim , the car has ssm lift bars, what do i have to do to make them work????????
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got my 65 mustang back! (bonny)! roller...
Posts: 1518 | From: Sunnyvale | Registered: Jun 2004
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