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Topic: What do I have?

in Forum: C3 Handling Components


What do I have?

Posted: 8/19/13 5:42am Message 1 of 12
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Equinunk, PA - USA
Joined: 10/31/2007
Posts: 2470
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
Confused I cleaned and painted all of my wheels. On two of them just inside the outer lip near the bead, on inside and outside of wheel, some one has drilled 8  3/16 holes. The holes do not affect the air holding ability and are somewhat exposed after the tire is mounted. They are GM facory wheels as far as I know. They are 15x8, and have a JJ code and stamped GM. Stamped both inside on center and outside near the valve stem. THANKS


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Re: What do I have?

Posted: 8/19/13 6:03am Message 2 of 12
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Holland Patent, NY - USA
Joined: 6/3/2008
Posts: 4422
Vette(s): #1 *1980 White, Red interior 14,000 mile #2 *1980 Red, Oyster interior 93,000 miles Resto project car, rebuilt to 383 stroker
Holy Cow Batman!
 
I know here at work when we need to remove weight for inbalance on our Aircraft Driveshafts they some times drill holes.
Other options are to mill or grind off material.
My uneducated guess would be it's a balance removal.
Evil Smileebo




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Re: What do I have?

Posted: 8/19/13 8:19am Message 3 of 12
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Rockland, MA - USA
Joined: 1/30/2003
Posts: 584
Vette(s): 76, L48, 4spd & 09, LS3, 6spd
Hmmm, 2 wheels only, 8 holes ea - sounds like someone was trying to hold a tire / slick on those wheels to me.


 

 

Re: What do I have?

Posted: 8/19/13 8:31am Message 4 of 12
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Wichita, KS - USA
Joined: 11/10/2003
Posts: 6859
Vette(s): 2005 Daytona Sunset Orange Metallic Coupe --------------------- Sold 1974 T-top, 4 spd to BillKS
Willis76 said: Hmmm, 2 wheels only, 8 holes ea - sounds like someone was trying to hold a tire / slick on those wheels to me.

I agree with Dennis, sounds like screw holes for drag slicks to me.  I did that many years ago with my 57 Chevy. 
 
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Re: What do I have?

Posted: 8/19/13 9:45am Message 5 of 12
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Flanders, NJ - USA
Joined: 1/27/2004
Posts: 2556
Vette(s): 1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.
They would have to be tapped holes for that, right?
Dave



 

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Re: What do I have?

Posted: 8/19/13 10:09am Message 6 of 12
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20218
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Willis76 said: Hmmm, 2 wheels only, 8 holes ea - sounds like someone was trying to hold a tire / slick on those wheels to me.


Ding Ding Ding!!! We have a WINNAH!!! Thumbs Up Clap
Yup...holes were drilled, and sheet metal screws would have been screwed into the bead of the tire to help hold the bead tight on the rim. This is done when running really low air pressure in slicks....without them, one good high rpm burnout would suck the beads of the tires right off of the rim. It also helps keep the tires from spinning on the rims...
It's an old trick, and still used today, tho the screws have gotten better....LOL
If ya wanna make the rims look a little less goofy, just get some short sheet metal screws and screw them in. That way, it's not just a bunch of empty holes in the rims. Plus...you'll get lotsa questions about why they are there...and you can tell them it's to keep the tire from spinning in the rims when you blast off....LOL

Then again....are these steel Rally rims? If they are, then the trim rings will cover the holes anyway....











|UPDATED|8/19/2013 10:09:44 AM (AZT)|/UPDATED|



Joel Adams
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Re: What do I have?

Posted: 8/20/13 4:30am Message 7 of 12
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Equinunk, PA - USA
Joined: 10/31/2007
Posts: 2470
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
Cool My low horsepower (165) 75' could indeed be a sleeper.LOL Maybe wheels are from some B.B. supercar!  Well as of now they are just wheels with new tires on them. Did not think of some of the possibilities you suggested. THANKS! The trim rings WILL cover the holes and no screws will occupy the holes. I'll NEVER spin them in the road, let alone spin them inside the wheel.Wink   Preciate the input. 


Re: What do I have?

Posted: 8/20/13 8:49am Message 8 of 12
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Grapevine, TX - USA
Joined: 8/26/2006
Posts: 1528
Vette(s): 1972 LT-1 convertible with factory air. 2017 Black Rose Grand Sport convertible.
My spare tire rim has holes drill in it too.  


   

Re: What do I have?

Posted: 8/21/13 5:06am Message 9 of 12
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Equinunk, PA - USA
Joined: 10/31/2007
Posts: 2470
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
 Mine are machined in and not some week-end driller with slicks in mind. Very symetrical and VERY well placed. No variance in spacing. Not tapped either. I plan to have the ride at Carlisle if someone wants to peek.


Re: What do I have?

Posted: 8/21/13 9:27am Message 10 of 12
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Holland Patent, NY - USA
Joined: 6/3/2008
Posts: 4422
Vette(s): #1 *1980 White, Red interior 14,000 mile #2 *1980 Red, Oyster interior 93,000 miles Resto project car, rebuilt to 383 stroker
Pack wisely you have a few things comming to you that will need to return home with you ....Wink
Evil Smileebo




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Evil Smileebo

in Forum: C3 Handling Components


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