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Unread 02-02-2004, 12:55 PM   #1
Lane
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Biggest tire on a Fox body?

Without sticking out of course... What size tire and wheel, with what backspacing of wheels you guys(or have seen) running? Does it take massaging of the wheel wells? Mini tubs a good idea? M-tubs sure would be easy to do right now with the car stripped. I don't need or want 31x14's or anything - just would like to know what fits well in a 28" tall slick and 325-50 DR.

Andrew - didn't we mount 28x10's or 10.5's for you?

Manny?

Anyone?

Thanks!
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Unread 02-02-2004, 12:57 PM   #2
Andrew
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Re: Biggest tire on a Fox body?

I've got 28 x 10.5's on a 5.5" BS 15x8 weld draglite. I had to hammer on the wheel well, roll the fender, and cut a bit of the front and back ground effects. You could use a 6.5" Bs on a 15x10" draglite.

Quote:
Originally posted by Lane
Without sticking out of course... What size tire and wheel, with what backspacing of wheels you guys(or have seen) running? Does it take massaging of the wheel wells? Mini tubs a good idea? M-tubs sure would be easy to do right now with the car stripped. I don't need or want 31x14's or anything - just would like to know what fits well in a 28" tall slick and 325-50 DR.

Andrew - didn't we mount 28x10's or 10.5's for you?

Manny?

Anyone?

Thanks!
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Unread 02-02-2004, 12:59 PM   #3
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Re: Re: Biggest tire on a Fox body?

Quote:
Originally posted by Andrew
You could use a 6.5" Bs on a 15x10" draglite.



thats what I'm using, with the 28 x 10.5 slick


here a pic of it
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Unread 02-02-2004, 01:01 PM   #4
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15x10 w/ 6.5 bs
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Unread 02-02-2004, 01:05 PM   #5
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i run 15x8 with 5.5bs with 28x10,5's...didnt have to cut or pound anything...
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Unread 02-02-2004, 01:05 PM   #6
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Re: Re: Re: Biggest tire on a Fox body?

Quote:
Originally posted by musclestang89
thats what I'm using, with the 28 x 10.5 slick


here a pic of it
15x10 with 6.5" BS?

Thanks guys!
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Unread 02-02-2004, 01:06 PM   #7
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I had a 15x10 wheel (6.5" BS) with a Goodyear 28x11 slick on my old car. I had to use a 1/4" spacer as well. It was tight in there. Lots of wheel well beating.
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Unread 02-02-2004, 01:07 PM   #8
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Re: Re: Re: Re: Biggest tire on a Fox body?

Quote:
Originally posted by Lane
15x10 with 6.5" BS?

Thanks guys!

yea
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Unread 02-02-2004, 02:02 PM   #9
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Quote:
Originally posted by 302_plus_a_few
I had a 15x10 wheel (6.5" BS) with a Goodyear 28x11 slick on my old car. I had to use a 1/4" spacer as well. It was tight in there. Lots of wheel well beating.
Looks good Kirk!

I think the section width on those Goodyear 11's is about 12.5". Big tire.

I'm thinking of mini-tubbing this car. A buddy of mine just did his Nova and said it was very easy... We'll see.

It would make fitting tires a lot easier!
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Unread 02-02-2004, 02:07 PM   #10
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Quote:
Originally posted by Lane
Looks good Kirk!

I think the section width on those Goodyear 11's is about 12.5". Big tire.

I'm thinking of mini-tubbing this car. A buddy of mine just did his Nova and said it was very easy... We'll see.

It would make fitting tires a lot easier!
If you figure out an easy way to mini tub a Mustang I'm going to copy you. Damn spring perches are too close to the wheel to get much of a mini tub. The best one I've ever seen done was a guy that cut the stock spring percchs out and welded a couple of Chassis engineering per-formed frame rails to the inside of the stock frame rails and then installed ladder bars. It was a home brew setup and it was on a coupe. He had a 30x12 Goodyear slick on it.
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Unread 02-02-2004, 02:16 PM   #11
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Quote:
Originally posted by 302_plus_a_few
If you figure out an easy way to mini tub a Mustang I'm going to copy you. Damn spring perches are too close to the wheel to get much of a mini tub. The best one I've ever seen done was a guy that cut the stock spring percchs out and welded a couple of Chassis engineering per-formed frame rails to the inside of the stock frame rails and then installed ladder bars. It was a home brew setup and it was on a coupe. He had a 30x12 Goodyear slick on it.
Coil overs are cool...
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Unread 02-02-2004, 02:20 PM   #12
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Quote:
Originally posted by STROKD
Coil overs are cool...
Where do they connect?
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Unread 02-02-2004, 02:22 PM   #13
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Quote:
Originally posted by 302_plus_a_few
Where do they connect?
to the shock?

My dad has c/o on his GR40, and he has lots of room from where the spring used to be... because the spring is about 1/3 the size...
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Unread 02-02-2004, 02:32 PM   #14
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Quote:
Originally posted by STROKD
to the shock?

My dad has c/o on his GR40, and he has lots of room from where the spring used to be... because the spring is about 1/3 the size...
Well, that might be an option worth looking into. Who makes the coilover conversion?
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Unread 02-02-2004, 02:38 PM   #15
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Quote:
Originally posted by 302_plus_a_few
Well, that might be an option worth looking into. Who makes the coilover conversion?
www.griggsracing.com
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Unread 02-02-2004, 03:15 PM   #16
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LOL - yeah, maybe I'll take a look at that spring perch! THAT might cause some problems...
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Unread 02-02-2004, 03:16 PM   #17
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Eh...

Honestly, a 28x10.5 (or in my case a 28x12.5 et street, virtually the same size tire..is about all you wanna do on a stock style suspension.

Mine are the same 15x10 with 6.5", and I have a 5/16" spacer on each wheel just in case.

ALso going from a 15x8 w 5.5 to a 15x10 with 6.5/spacer on the exact same tires knocked off about half a tenth consistently on the 60 foot times...
http://krylonracing.com/Stang/955.jpg
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Unread 02-02-2004, 03:22 PM   #18
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I run 15 x 9 Alumastars with a 6 3/8 backspace and 28 x 12.5 ET Streets and it's real tight!!! But it looks good
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Unread 02-02-2004, 03:26 PM   #19
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I still have those 15x10 draglites with 5.5 BS (and also a spacer that I can't remember how thick it is) if you'd like to try them.

I'd make ya a good deal on them
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Unread 02-02-2004, 03:31 PM   #20
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how big is a 325 50 15 drag radial??? Is it like a 28x10.5 or is it bigger
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Unread 02-02-2004, 04:26 PM   #21
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Mathematically a 325/50-15 should be 27.25"x12.25"...however given that its a radial I'd figure the tread would wrap a bit and be closer to a 28x10.5-11"

Also, with a radial type sidewall you should be fine....I'm looking to move to drag radial too probably...so I'll let ya know/you let me know...


-Sean
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Unread 02-02-2004, 05:25 PM   #22
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Quote:
Originally posted by 302_plus_a_few
Well, that might be an option worth looking into. Who makes the coilover conversion?
I wouldn't use the conversion on a drag car, all the cars I've seen when the springs are moved behind the axle on stock suspension have probs.
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Unread 02-02-2004, 07:30 PM   #23
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Quote:
Originally posted by GT40MkI
Mathematically a 325/50-15 should be 27.25"x12.25"...however given that its a radial I'd figure the tread would wrap a bit and be closer to a 28x10.5-11"

Also, with a radial type sidewall you should be fine....I'm looking to move to drag radial too probably...so I'll let ya know/you let me know...


-Sean
Is 12.25 the treadwidth or from sidewall to sidewall???
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Unread 02-02-2004, 09:42 PM   #24
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Quote:
Originally posted by spankustang
Is 12.25 the treadwidth or from sidewall to sidewall???
Technically speaking, the number 325 is the tread width in mm. Conversion to inches is 26.5mm/inch and you get ~12.26xxxx

The the 50 means that half of the tread width (50%) will be the sidewall..

From the MickeyThompsontires.com site:
3757R P325/50R15 (28x13.50R15)
3762R P295/65R15 (30x12.50R15)
3763R P315/60R15 (30x13.50R15)

And from Summit(BFG 325/50-15):
Specifications:
* Tire size: P325/50R-15
* Overall diameter: 27.9 in.
* Section width: 13 in.
* Tread width: 10.5 in.
* Recommended rim width: 9 in. to 12 in.
* Load rating: 2,447 lbs. at 44 psi

Looks like its going to be fun making em fit-I'll probably end up with a bit more (7/16") spacer and a big hammer inside the wheel well...if you get em first let me know how it works out...

I'll post pics if I happen to run across a set...at $320-350/pair I'm not going to be too keen on any rubbing going on back there...
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Unread 02-03-2004, 08:53 AM   #25
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While we're on the topic...anyone know when the MT Drag Rad's will be available?
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Unread 02-03-2004, 08:58 AM   #26
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I saw them on TV but haven't heard when they'll be out!!
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Unread 02-03-2004, 08:58 AM   #27
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Quote:
Originally posted by GT40MkI
While we're on the topic...anyone know when the MT Drag Rad's will be available?
At SEMA, they told me the 275-60r15's would be out in January and the other sizes would follow in the next few months...
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Unread 02-03-2004, 09:14 AM   #28
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what's the spec's on a 275 60 15???
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Unread 02-03-2004, 10:11 AM   #29
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3754R P275/60R15 (28x11.50R15)

According to MT again...

My old BFG 275/60s were not as tall tho, closer to a 27x10
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Unread 02-03-2004, 11:27 AM   #30
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15 by 10 6.5 BS with 1/4 inch spacer, fits perfect
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Unread 02-03-2004, 02:05 PM   #31
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Quote:
Originally posted by AnotherRedHead
15 by 10 6.5 BS with 1/4 inch spacer, fits perfect
Yup, here's mine with that setup.
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