How Much Slick Clearance is Required?
#1066222
08/30/11 10:58 PM
08/30/11 10:58 PM
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Joined: Jan 2003
Posts: 4,270
Morrow, OH
markz528
OP
master
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OP
master
Joined: Jan 2003
Posts: 4,270
Morrow, OH
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Went with the M/T 31 x 10.5W slick. It is about an inch taller than my old Phoenix tire.
How much minimum clearance should I have to the front lip to feel comfortable? This is a ladder bar car.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: How Much Slick Clearance is Required?
[Re: markz528]
#1066223
08/30/11 11:01 PM
08/30/11 11:01 PM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
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Rock Springs
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1 1/2" or so Mark minimal.
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: How Much Slick Clearance is Required?
[Re: MR_P_BODY]
#1066227
08/31/11 09:18 AM
08/31/11 09:18 AM
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Joined: Nov 2009
Posts: 2,177
ill
dennismopar73
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,177
ill
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mr p ,,does radials 'grow' more over standarad slick?? i know in most cases, a tire will actually get more skinny' at speed, of course, but will the radial, or for that matter a stiff sidewall tire get bigger overall, ?? i runn a 33 /16.5 and i have around a 1-1 1/4 in the front, but i havent had car out yet, all new so i'm thinking to run a smaller tire 32/14.5 w radial to increase my clearance, sure dont want to take out new quarters tire and paint ,   
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Re: How Much Slick Clearance is Required?
[Re: dennismopar73]
#1066228
08/31/11 12:49 PM
08/31/11 12:49 PM
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Joined: Aug 2003
Posts: 43,159
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,159
Bend,OR USA
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Radials do not grow at speed like the bias plys do  It probally depends on how wide the rim is , how much MPH the car runs and some other things like how much downforce is on the rear of the car at speed  Does it raise the rear up at higher speed or does the downforce push it down at the finish line
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: How Much Slick Clearance is Required?
[Re: MR_P_BODY]
#1066230
08/31/11 02:08 PM
08/31/11 02:08 PM
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Joined: Jan 2003
Posts: 4,270
Morrow, OH
markz528
OP
master
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OP
master
Joined: Jan 2003
Posts: 4,270
Morrow, OH
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I don't know why, but I have 1 1/4 inch clearance on the passenger side and 1/2 inch on the driver side. I knew there was a difference, but I never had an issue with it.
M/T tells me the tires will grow 1 1/2 inches @ 150 mph. My car runs 140 mph.
I checked the squareness of my rear to the front crossmember, and it is dead square. I guess I need to cut my driver quater panel.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: How Much Slick Clearance is Required?
[Re: markz528]
#1066231
08/31/11 09:21 PM
08/31/11 09:21 PM
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Joined: Jan 2003
Posts: 16,925
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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Quote:
How much minimum clearance should I have to the front lip to feel comfortable?
M/T tells me the tires will grow 1 1/2 inches @ 150 mph. My car runs 140 mph.
Wow. 
Those tires grow a lot. I will have to actually measure, but my Pheonix slicks only have about 3/4" to the front lip and no problems. 14" wide rim with 13.6" tread, 143 mph.
Is M/T saying 1.5" radius or diameter change?
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