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Tire and Wheel dilemma

The wheels on my '78 are 16". The rears are 11" wide. I cannot find large enough tires to properly fit out the wheel width. I think my best avenue is to replace the rear "halves" with 17".

My question is: do any of you guys recognize the wheel or have an idea who might have built them? As you can see, they are very well done. They have kind of a unique head on the bolts that hold them together. There are about 12 points on the head of the bolt as opposed to 6 points on a standard bolt. (They are not allen head.) Maybe that will help.

If they are not recognizable to you guys, maybe you have a suggestion as to where I can send them to get some suggestions.

Thanks,
Drew




Last edited by Wolf300tt; 01-06-2008 at 02:19 PM..
Old 01-06-2008, 02:14 PM
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Quote:
Originally Posted by Wolf300tt View Post
The wheels on my '78 are 16". The rears are 11" wide. I cannot find large enough tires to properly fit out the wheel width. I think my best avenue is to replace the rear "halves" with 17".

My question is: do any of you guys recognize the wheel or have an idea who might have built them? As you can see, they are very well done. They have kind of a unique head on the bolts that hold them together. There are about 12 points on the head of the bolt as opposed to 6 points on a standard bolt. (They are not allen head.) Maybe that will help.

If they are not recognizable to you guys, maybe you have a suggestion as to where I can send them to get some suggestions.

Thanks,
Drew



Hi,
What tires are on the back now? Do you have a low angle Pic from the rear showing what you are talking about?

Les
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Old 01-06-2008, 02:31 PM
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They are 245-45-16. According to Tirerack, I should have close to 305's back there to fit the width.
Old 01-06-2008, 02:35 PM
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Might be some of Gary Stratton's wheels (Sonjay).
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Old 01-06-2008, 02:43 PM
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Quote:
Originally Posted by Wolf300tt View Post
They are 245-45-16. According to Tirerack, I should have close to 305's back there to fit the width.

Hi,
Yeah, that's pretty narrow. It would be a shame to "can" the wheels. They are color matched to your car. I usually don't like that effect, but it looks nice on your car. I agree, you should be over 275mm. You can't find any tires? What color, kinda a Candy Black Cherry? I like it!

Les
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Old 01-06-2008, 02:45 PM
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The car came from Fresno, CA. Most of the work was done out there. I can't say for sure about the wheels though. Obviously, since they are only 16", they were done some time ago. I'm hoping to use the centers with 17" halves just on the rears. The fronts are fine.

I have not been able to determine the actual color yet, but candy black cherry is a good guess. It looks REAL cool in person.
Old 01-06-2008, 03:24 PM
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Those look very similar in design to my wheels (pictured below).
Mine were made by Compomotive a little over 10 years ago.

The tires that went on 11x16 wheels in the day were 315/45-16. And as you know they are NLA.
You may try Koker or get some slicks grooved.


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Old 01-06-2008, 08:09 PM
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Quote:
Originally Posted by Wolf300tt View Post
I think my best avenue is to replace the rear "halves" with 17". My question is: do any of you guys recognize the wheel or have an idea who might have built them? As you can see, they are very well done. They have kind of a unique head on the bolts that hold them together. There are about 12 points on the head of the bolt as opposed to 6 points on a standard bolt. (They are not allen head.) Maybe that will help.


These are BBS motorsports halves (20 bolt). One distributer most often tossed around here is www.bobwoodmantires.com They can supply halves, but won't give advice.

Pelican classifieds and ebay are also sources for halves.

The 12pt bolts are metric BBS (or imperial aircraft) need a 5/16 or 8mm 12 point socket.
Old 01-06-2008, 08:38 PM
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RarlyL8, I called Coker tire a couple of weeks ago. I think the biggest they still had available were 275's. Not really that much better. I've pretty much given up on sourcing tires for the 16's.

Jim, the next question I will need to answer is whether I can still use my Fuchs centers on 17" BBS halves. I may just have to buy a pair and find out. I also wonder if Compomotive and BBS used a similar bolt pattern. (That would be toooooo convenient!)
Old 01-06-2008, 08:50 PM
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Yes, the 17" BBS motorsports halves (20 bolt series) interchange with your centers.

I have no clue if compomotive uses the same dimension, highly doubt it.
Old 01-06-2008, 09:38 PM
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There must not be a real hot rodder amongst the whole list here.

http://www.mickeythompsontires.com/strip.php?item=ETStreetRadial

Mickey Thompson, plus they would look coll as hell.

Les
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Old 01-06-2008, 10:32 PM
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www.kodiakracingwheels.com

or

www.bogartracingwheels.com
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Old 01-07-2008, 05:47 AM
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Les,
All those tires are too tall. This is for a Porsche not a truck.
The 315/45 from days gone by was also too tall. You really need a tire ~ 25.5" tall on a 16" wheel to look right and handle well.
Slicks are about your only option with wide 16s.
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Old 01-07-2008, 06:24 AM
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Quote:
Originally Posted by RarlyL8 View Post
Les,
All those tires are too tall. This is for a Porsche not a truck.
The 315/45 from days gone by was also too tall. You really need a tire ~ 25.5" tall on a 16" wheel to look right and handle well.
Slicks are about your only option with wide 16s.
Hi,
I thought 315/45 would all be the same height? There were 315/45's in the past that were 25.5 inches in diameter?

Les
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Old 01-07-2008, 06:53 AM
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Jim is right. RarlyL8's wheels have far more bolts around the perimeter than mine.

Les, you had my hopes up for a minute there. I think a 315/35/16 would be workable, but, I haven't stumbled across any yet.

Drew
Old 01-07-2008, 08:18 AM
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Interesting sizes here


https://www.hoosiertire.com/rrtire.htm

Les
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Last edited by les_garten; 01-07-2008 at 09:20 AM..
Old 01-07-2008, 09:18 AM
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You're right, my wheels have more bolts than yours. Hard to count them in the pictures.
HRE made Fuch 3-piece wheels as well a few years back.

A decent compromise of looks and performance would limit sidewall hieght to about 4.75" (120mm).
Working backward, and using a 315mm width, you end up with a 35% spect ratio giving a sidewall hieght of 4.34" (110mm) while a 40% aspect ratio gives a sidewall hieght of 5.0" (126mm).
So a 315/35-16 would be 12.4" wide and 24.7" tall while a 315/40-16 is 25.9" tall. HUGE difference and a real problem when searching for the right combination of hieght and width.
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Old 01-07-2008, 09:50 AM
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Another idea that I had is to reduce the size of the offset on the rear halves thereby reducing the overall tire width needed. Possibly go down to say 9" width instead of 11". Then even the 245/45's on the car will fit. I will give up the aggressive look of the 11" width, but, I would gain the availability of tires that fit.

Bob Woodman Tires has new and used 16" BBS wheel halves for around $125-175 each. I talked with them on the phone today, and they said they would take the wheel halves that I have on trade. I would probably just keep them, but it does give me another option.

Drew
Old 01-07-2008, 02:10 PM
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Hey 125Shifter, thanks for the input.

BTW my oldest son and I ran shifters a few years back. It was a blast. He retired from the sport back in 2002 after he flipped at Mid-Ohio. I continued for a couple more years until they eliminated the "Old-Man" classes.

Drew
Old 01-07-2008, 02:16 PM
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Originally Posted by Wolf300tt View Post
Hey 125Shifter, thanks for the input.

BTW my oldest son and I ran shifters a few years back. It was a blast. He retired from the sport back in 2002 after he flipped at Mid-Ohio. I continued for a couple more years until they eliminated the "Old-Man" classes.

Drew
I'm only running a couple races a year these days, but I still run with the kids . I'm certainly old enough to run the "old man class", but I've just gotten to where I can run light class with no ballast and I like not having to lift a ballasted kart. I'm trying to get my son into it now but he doesn't seem too thrilled . I'm going to buy a KT100 for him and an 80 for my wife from a friend for cheap and start out with some family practice days at the sprint track. I've been to Mid-Ohio as a motorcycle mechanic and I'd love to race there, but I haven't had the chance.

Those two companies can build you rim halves if you give them the ID and bolt pattern of the existing halves. Kodiak uses 6061 Al, but they're pretty slow and Bogart uses 5052 Al which is a little weaker.
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Old 01-07-2008, 04:24 PM
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