Min. allowable tire clearances

ken robinson · 01-30-2012, 08:06 PM

Looking for some ideas on what the min. allowable rear tire clearance should not exceed . From the inside of the rear slick to the leaf spring . Its a 1969 dart stocker and the leaf spring is the only thing that limits how far in the tire can go . Your opinions / expearences please . Ken R . ..............

Jim Wahl · 01-31-2012, 01:12 AM

Is this a Stocker? On my Volare' (F Body) I have 3/8" from the widest part of the tire to the leaf spring. This is using a radial Hoosier. I would give at least 1/2" to 5/8" if bias tire is used. Jim

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terry1 · 01-31-2012, 10:24 AM

Jim,don't you think that a bias tire would only get narrower as the speed increases?
The reason I'm asking is that I have/will have a similar issue.

Phillip marvetz · 01-31-2012, 11:47 AM

Calvert has a narrower spring available for the Darts.

ken robinson · 01-31-2012, 08:56 PM

Thanks guys for the info/input what a great sport to be part of ! I was thinking 1/2 inch would be safe enough , with a hooser radial tire and the caltac set-up that the friend/racer has supplied us for his stocker c/sa dart .The goodyears seam to have alittle less side wall bubble compaired to the other tires , at least thats want I know from what I ran on my 67 camaro . I don't build alot of cars , but the once I'm apart of I want wright and mopars are not my back round . It would be nice to see some of my work go rounds .

Dinsdale · 02-01-2012, 12:01 AM

I have more piston to wall clearance than my Goodyears and the springs. It's annoying having to touch up the paint on the springs every year but the tires seem okay. I think they only contact making turns.

Ed Fernandez · 02-01-2012, 02:34 AM

Quote:

Originally Posted by ken robinson

Thanks guys for the info/input what a great sport to be part of ! I was thinking 1/2 inch would be safe enough , with a hooser radial tire and the caltac set-up that the friend/racer has supplied us for his stocker c/sa dart .The goodyears seam to have alittle less side wall bubble compaired to the other tires , at least thats want I know from what I ran on my 67 camaro . I don't build alot of cars , but the once I'm apart of I want wright and mopars are not my back round . It would be nice to see some of my work go rounds .

Kenny,you going over to the dark side?You in a Moopar?I gotta see it.

Jim Wahl · 02-01-2012, 03:46 AM

Quote:

Originally Posted by terry1

Jim,don't you think that a bias tire would only get narrower as the speed increases?
The reason I'm asking is that I have/will have a similar issue.

Sure, it gets taller but it flexes at the sidewall a bunch more. The radial holds its height and width much better than the bias. Jim

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01-30-2012, 08:06 PM	#1
ken robinson Member Join Date: Dec 2001 Location: tomsriver nj Posts: 474 Likes: 72 Liked 213 Times in 85 Posts	Min. allowable tire clearances Looking for some ideas on what the min. allowable rear tire clearance should not exceed . From the inside of the rear slick to the leaf spring . Its a 1969 dart stocker and the leaf spring is the only thing that limits how far in the tire can go . Your opinions / expearences please . Ken R . ..............

01-31-2012, 01:12 AM	#2
Jim Wahl Veteran Member Join Date: Jan 2002 Location: Central Florida Posts: 5,843 Likes: 665 Liked 682 Times in 128 Posts	Re: Min. allowable tire clearances Is this a Stocker? On my Volare' (F Body) I have 3/8" from the widest part of the tire to the leaf spring. This is using a radial Hoosier. I would give at least 1/2" to 5/8" if bias tire is used. Jim . __________________ Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 D2 National Open Stock Champion 1981 D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association.

01-31-2012, 10:24 AM	#3
terry1 Member Join Date: Sep 2006 Location: Moncton, N.B. Posts: 276 Likes: 24 Liked 24 Times in 13 Posts	Re: Min. allowable tire clearances Jim,don't you think that a bias tire would only get narrower as the speed increases? The reason I'm asking is that I have/will have a similar issue.

01-31-2012, 11:47 AM	#4
Phillip marvetz Senior Member Join Date: Oct 2008 Location: Lynden ,WA Posts: 820 Likes: 0 Liked 3 Times in 3 Posts	Re: Min. allowable tire clearances Calvert has a narrower spring available for the Darts. __________________ 2009 V/SA Record Holder

01-31-2012, 08:56 PM	#5
ken robinson Member Join Date: Dec 2001 Location: tomsriver nj Posts: 474 Likes: 72 Liked 213 Times in 85 Posts	Re: Min. allowable tire clearances Thanks guys for the info/input what a great sport to be part of ! I was thinking 1/2 inch would be safe enough , with a hooser radial tire and the caltac set-up that the friend/racer has supplied us for his stocker c/sa dart .The goodyears seam to have alittle less side wall bubble compaired to the other tires , at least thats want I know from what I ran on my 67 camaro . I don't build alot of cars , but the once I'm apart of I want wright and mopars are not my back round . It would be nice to see some of my work go rounds .

02-01-2012, 12:01 AM	#6
Dinsdale Member Join Date: Oct 2004 Location: Canada Posts: 313 Likes: 0 Liked 6 Times in 2 Posts	Re: Min. allowable tire clearances I have more piston to wall clearance than my Goodyears and the springs. It's annoying having to touch up the paint on the springs every year but the tires seem okay. I think they only contact making turns. __________________ Dale Posnick