Aluminum Spares- NHRA Legal? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 7 Old 02-07-2012, 07:50 AM Thread Starter
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Aluminum Spares- NHRA Legal?

I've seen threads about this that don't seem to come to any conclusion. According to what I read, you can't use the spare TIRE, but the wheel is okay. This is out of the 2011 rule book. I don't know if the 2012 is any different:

Tires will be visually checked for condition, pressure, etc. and must
be considered free of defects by the technical inspector prior to any
run. All street tires must have a minimum of 1/16-inch tread depth.
Temporary spares, space saver spares, farm implement or trailer
tires prohibited. Metal, screw-in valve stems mandatory in tubeless
tires, front and rear, on vehicles running 11.99 or quicker.
5:2 WHEELS
Hubcaps must be
removed for
inspectors, who will
check for loose
lugs, cracked
wheels, worn or
oversize lug holes,
and condition of
spindles, axle nuts,
cotter pins, etc.
Snap-on hubcaps
are prohibited on
any class car. The
use of ‚Äúspinner‚ÄĚ style wheels or any wheel design that incorporates
movable pieces while vehicle is in motion or stationary are
prohibited. Each car in competition must be equipped with
automotive-type wheels with a minimum 12 inches of diameter
unless Class Requirements stipulate otherwise. Motorcycle wheels
or lightweight automotive wire wheels must be equipped with .100-
inch minimum diameter steel spokes, properly cross-laced to
provide maximum strength. All spoke holes in rim and hub must be
laced. Omissions to lighten wheels prohibited. The thread
engagement on all wheel studs to the lug nut, or lug bolts to wheel
hubs, must be equivalent to or greater than the diameter of the
stud/bolt. Length of the stud/bolt does not determine permissibility.
(Example: A 7/16-inch stud must be thoroughly engaged through
the threads in the hex portion of the lug a minimum of 7/16-inch.)
Wheel spacer permitted. Spacer to be either hub-centric or lug-centric
and must fit with minimal clearance to retain concentricity. The wheel
spacer must not reduce the minimum permitted thread engagement
below the limits established by fastener diameter. (See example as
stated above.) No stacking of wheel spacers allowed. Maximum rim
width on any car: 16 inches. No rear wheel discs or covers permitted
in any category. Top Fuel and Funny Car rear wheels must meet SFI
Spec 15.3. Pro Stock, Top Alcohol Dragster, Top Alcohol Funny Car,
and Pro Modified (Comp) must meet a minimum of SFI Spec 15.1

I have two, and I don't want to have any trouble with the tech guys when I go.

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post #2 of 7 Old 02-07-2012, 10:45 AM
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You are correct, You cant use the tires but you can use the rims. people have been using them for years. pretty sure the tire they use is a 165-15.


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post #3 of 7 Old 02-07-2012, 02:16 PM Thread Starter
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I sure hope so. I just spent MANY hours polishing them! I'm looking for something taller than a 165. I want to cheat the beams best I can. Hard to find a tall street radial. I have DR's on the rear. 185 would be nice, seems they're unavailable.
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post #4 of 7 Old 02-08-2012, 02:38 PM
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Find some used [email protected] front runners (tires)...........check racing junk, yellowbullet etc.......

'89 GT: STOCK shortblock 5spd./TW/TFS-R/[email protected]
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post #5 of 7 Old 02-08-2012, 06:20 PM Thread Starter
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Quote:
Originally Posted by Mr.Blue View Post
Find some used [email protected] front runners (tires)
Yeah, I'd like a 26 or 27. I've only been able to find bias-ply drag race-type tires. It's a street car with MT Drag Radials on it.
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post #6 of 7 Old 02-08-2012, 06:39 PM
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MT Sportsman S/R

Check out the Mickey Thompson Sportsman S/R DOT legal skinny. They have a 26x6.00R15 LT that will work well. A little heavy compared to a similar sized bias ply tire, but speed rated to 130 MPH. Totally street friendly. Here's the link Mickey Thompson Performance Tires & Wheels

Don

1970 Mustang Sportsroof
Aluminum 408C with ported CHI 3V heads
4R70W automatic with Baumann TCS controller (5600 RPM stall converter)

Last edited by oldskool70; 02-08-2012 at 06:40 PM. Reason: Spelling error.
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post #7 of 7 Old 02-09-2012, 09:20 AM Thread Starter
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I appreciate the link, Oldskool. I should've mentioned that I've seen them, but they're a bit pricey for me at $180 each, plus oversize shipping. I may have to compromise my desire to get the tall tire, which will help e.t., with how much I'm willing to spend. I know, "speed costs money, how fast do you want to go?" Ultimately, I should hold off and save my money for them, I hate to give up any e.t., even on a street car.
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