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15 inch drag slicks rim fitment

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Old 11-02-2012, 08:59 PM   #1
slickman
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Default 15 inch drag slicks rim fitment

will a 15x8.5 with a 5.5 BS fit a s197? If so, is there anything that needs to be modified. It looks like it would be close but not sure.
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Old 11-02-2012, 09:07 PM   #2
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Depending on the brand, that size will clear without having to relocate the rear sway. However, if you run a very wide and tall tire on that rim, it may rub the fender on hard launches. I have 2 sets of rear 15"s, one for street and one for strip. My street wheels are 15x10 with a 7.5" BS and required a rear sway bar relocation. My strip wheels are 15x8 with a 5.5" BS and did not require any modification. All of my wheels are racestars.
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Old 11-02-2012, 09:36 PM   #3
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What size tire are you running on the strip rims?

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Originally Posted by Diabolical! View Post
Depending on the brand, that size will clear without having to relocate the rear sway. However, if you run a very wide and tall tire on that rim, it may rub the fender on hard launches. I have 2 sets of rear 15"s, one for street and one for strip. My street wheels are 15x10 with a 7.5" BS and required a rear sway bar relocation. My strip wheels are 15x8 with a 5.5" BS and did not require any modification. All of my wheels are racestars.
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Old 11-02-2012, 11:00 PM   #4
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Hoosier QTP 27x11.5x15. They lay down a nice contact path and hook excellent. My street tires are 28x12x15. They are strictly for looks and hook like crap, lol.
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Old 11-02-2012, 11:57 PM   #5
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Well, this is what I'm looking at used. From what your telling me, they should be fine? Mickey Thompson ET Drag Slicks 28x10.5x15 on Jegs Sportstar Wheels 5 lug 5.5 BS
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Old 11-03-2012, 12:52 AM   #6
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That combo should work, but the height and width of the tire will be cutting it close. Those rims would stick out 1/2" farther than mine, and mine are VERY close, but I also have a wider tire. I really think you'll be OK, but I'd test fit them to see if the tire clears and the rear brake caliper clears if possible. I'm not familiar with the jegs wheels, but some drag wheels need a small spacer on S197s to clear the caliper.
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Old 11-03-2012, 12:58 AM   #7
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Quote:
Originally Posted by Diabolical! View Post
That combo should work, but the height and width of the tire will be cutting it close. Those rims would stick out 1/2" farther than mine, and mine are VERY close, but I also have a wider tire. I really think you'll be OK, but I'd test fit them to see if the tire clears and the rear brake caliper clears if possible. I'm not familiar with the jegs wheels, but some drag wheels need a small spacer on S197s to clear the caliper.

So when guys are talking about wheels clearing the caliper, they are talking about the space between the inside face of the rim and the outside face of the caliper?
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Old 11-03-2012, 01:08 AM   #8
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Correction, the wheels are 15x8 with a 5.5 BS
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Old 11-03-2012, 08:55 AM   #9
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Well, I purchased them. Got the set (50% tread left) for $480 shipped. If they don't fit, I'll just resell them. Comes with Mickey Thompson ET Drag Slicks 28x10.5
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Old 11-03-2012, 12:36 PM   #10
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Quote:
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Correction, the wheels are 15x8 with a 5.5 BS
That's the perfect size for these cars and should fit without any modification.
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Old 11-04-2012, 06:45 PM   #11
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Quote:
Originally Posted by Diabolical! View Post
That's the perfect size for these cars and should fit without any modification.
Great, I should have them in about a week. I now have my (Brand new) MT ET Street's for sale. 245-40/18's.
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Old 11-20-2012, 02:03 PM   #12
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Well, checked everything out. I need a .120 (I should have it Friday) spacer to clear the caliper face. I have about a 1 inch space between the top of the tire and the bottom of the fender lip. Should be okay but, I'm going to add a set of air bags (just to use for the track) I have to make sure the travel on a launch is not going to rub. I don't think it will, going to test it in my driveway (wife will love that) as soon as my spacers get here. Turned out I only spent $380 for the slicks and wheels delivered.!
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Old 11-21-2012, 07:23 AM   #13
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Good deal. I run an air bag in the passenger side spring only. When you launch these cars, that's the side that wants to squat.
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Old 11-21-2012, 07:28 AM   #14
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Quote:
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Good deal. I run an air bag in the passenger side spring only. When you launch these cars, that's the side that wants to squat.
How many pounds of air to you normally run in air bag?
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Old 11-21-2012, 07:28 AM   #15
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Quote:
Originally Posted by Diabolical! View Post
Good deal. I run an air bag in the passenger side spring only. When you launch these cars, that's the side that wants to squat.

Also, are your front runners 15's? I'm looking into what to run on the fronts. Bias ply, radial, size and so on for just the track.
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Old 11-21-2012, 03:10 PM   #16
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Quote:
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How many pounds of air to you normally run in air bag?
12psi, but you can't go by that because I have a full suspension and, most importantly, a BMR extreme antiroll. Before installing the antiroll, I ran as much as 30psi and set my rear shocks differently.My recommendation is start high and drop psi until you find the sweet spot.

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Also, are your front runners 15's? I'm looking into what to run on the fronts. Bias ply, radial, size and so on for just the track.
Yes, my front runners are 15x3.75" with 26x6x15" Mickey Thompson Sportsman S/R radials. I run the skinnies on the street and on the track. If they were drag-strip only wheels, I would run a 26x4.5" bias ply.

My track rears are 27x11.5x15" Hoosier QTP bias plys on 15x8" rims.

My street rears are 28x12x15" Mickey Thompson Sportsman S/R radials on 15x10" rims. (Swaybar had to be relocated to fit these.)

Lots of people will say you should never mix bias ply and radials, but I know a TON of racers who run street radials on the front and bias plys on the rear at the track.
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Old 11-24-2012, 10:57 AM   #17
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I tested the new slicks out in my driveway, launching it at 4k no rubbing at all. The slicks sticks out about an inch or so past the fender lip but I'm not worried about it, it would hit the bump stop before the tires (my car is lowered 1.5 inches). I may try and get a set of air bags just to be safe for the track only. I ordered the front skinnies from Summit and tires too with a 3/8 spacer. Should be here next week.

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Old 11-24-2012, 05:29 PM   #18
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VERY NICE! That's about how mine sits on the slicks. My advice is to get rid of the bump stops and get some good adjustable schocks. Landing hard on the bump stops can kill 60' times. That was the first issue that made me start building my suspension. God damn this gets expensive, and it never ends... lol
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Old 11-24-2012, 05:34 PM   #19
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Quote:
Originally Posted by Diabolical! View Post
VERY NICE! That's about how mine sits on the slicks. My advice is to get rid of the bump stops and get some good adjustable schocks. Landing hard on the bump stops can kill 60' times. That was the first issue that made me start building my suspension. God damn this gets expensive, and it never ends... lol
The adj shocks I have, Tekico D.. The cost? I know, you have to make a decision to stop at a level and just have fun. Hard to do, I know.. lol
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Old 11-24-2012, 07:30 PM   #20
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Good deal. Those shocks will come in handy when you start dialing her in.
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Old 11-24-2012, 07:30 PM
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