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  #1 (permalink)  
Old 10-30-2006, 04:49 PM
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15x15 Centerlines

OK all, especially all you T-bucket guys.
I started on the now infamous "Altered to street rod" project today, pulling off a wheel to start on the rear end conversion.
That's when I discovered that my rear wheels are 15x15's!!
Not a problem when making passes down the strip with 32x 14.5x 15 Firestones, but some issues for use on the street.
Now, I could mount a 31x18.5x15 Mickey T street tire, at $250 each, but they are bias tires. Do you T-bucket guys run bias tires on all four corners? Are they OK at city speeds? Are any of you running bias on the back and radials on the front? What difference does it make? Am I making this too difficult?
I could always sell the 15x15's, and replace them with 15x8's, or 10's, but we all know that selling what you have and buying something to take it's place almost always costs more than working with what you have. Add to that the thought that with a set of those monsters on the back the car would retain some of it's race car ambience.
I see plenty of buckets going down the road with those steam rollers on the back, and sometimes even wires with motorcycle tires on the front.
I've never driven a bucket, so I don't have a clue if that works well or not.
Thoughts??....M

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Old 10-30-2006, 05:02 PM
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why not a M/T DOT legal tire? or even a BF goodrich radial T/A. Summit racing sells them that wide I belive.
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Old 10-30-2006, 05:37 PM
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Hoosier makes a street radial that big:

https://www.hoosiertire.com/strttire.htm
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Old 10-30-2006, 05:42 PM
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Thanks, not sure I want to sell my house so I can buy tires, tho.....


Quote:
Originally Posted by home brew
Hoosier makes a street radial that big:

https://www.hoosiertire.com/strttire.htm
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Old 10-30-2006, 06:29 PM
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I have run the bias and the radial, MT bias and the Hooser radial, the radials are hands down nice and tame a car nicely. MT also has a radial (fyi) but the one thing I would caution you on is mixing bias and radial, that is a combo for deserter. In the wet it will turn you around so quick you will not know what hit you.
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Old 10-30-2006, 06:54 PM
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Bias and radial

Thanks,
The only other experience I've had with a solid axle car was a 3 window '32 (yeah, I know,) that I had as a teenager. That was decades before radials even existed! m
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Old 10-30-2006, 07:36 PM
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15in on the wide is a big $$ tire, mine are 10 and the Hs are 250 a pop
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Old 10-30-2006, 08:15 PM
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lotsomoney

Yeah, that was why I was debating selling the 15x15's, and buying the 15x8's.
I never do well selling used speed equipment tho,so I'm still looking for a tire that will fit the 15 that I can live with......And, I have to admit, I really like the looks of the big meats on the back......
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Old 10-31-2006, 08:12 AM
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I used to run big bias tires on the back of my T (Cokers on a 15 x 12 Weld Draglite wheel). Couldn't keep them from flatspotting if they sat more than overnight - the ride was lumpy until you got about 20 miles into your trip. Bought Hoosier Pro Street Radials 31x16.5x15 and the ride got considerably better but there was still some vibration at highway speeds.

I have since bought 15x8 wheels and put appropriately-sized Cooper-made tires on those rims - these tires have a lower load rating. These run smooth and vibration free at all speeds, and they are the same circumference as the Hoosiers (no speedometer error).

In my opinion, T-Buckets are just not heavy enough in the rear to get large diameter tires with higher load ratings to roll smoothly. If they are slightly out of round or out of balance, the effect is exagerated in these cars. It seemed like one day they would be fine, they next day you thought you were in a Huey. I still have the 15x12 Draglites and the Hoosiers and occasionally put them on the car when I want to burn some rubber (again that light rear end), but now mostly run the 15x8s and the 275R15 narrower tires - most of my driving in this car is at 50-60 mph and they are smooth as glass. They give the car a slightly old school look and that works well for me.

By the way, I never had any handling issues running the bias-ply Cokers on the back and radials on the front but never had it rain either. Throughout this whole ordeal, I ran Cooper Sportmaster GLT 165R15 on the front using Draglite 15x3.5 wheels.
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Old 10-31-2006, 08:21 AM
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15x15's

Thanks!
That's the kind of real world information I was looking for.
I'm starting to lean more towards A 15x8 wheel, and the 285/70/15 radial T/A. Centerlines are real popular in the Dallas area, it should be relatively easy to find a used set of 15x8's.
If I'm lucky, I can find a T-bucket guy that wants a set of 15x15 centerlines....m
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Old 10-31-2006, 12:11 PM
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Quote:
Originally Posted by Mike Britton
Thanks!
That's the kind of real world information I was looking for.
I'm starting to lean more towards A 15x8 wheel, and the 285/70/15 radial T/A. Centerlines are real popular in the Dallas area, it should be relatively easy to find a used set of 15x8's.
If I'm lucky, I can find a T-bucket guy that wants a set of 15x15 centerlines....m
I ran a wire 15x10 then after I got tired of cleaning them went to a billet 15x10 with MT Sportsman 29x12.5 -15LT's - which I felt were a perfect size for my '23 T. These were tubeless and didn't flat spot unless it was sitting for several weeks - and then they rounded out within a couple of miles.

Dave
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Old 10-31-2006, 12:54 PM
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15x15's

Thanks, I've been reserching the tire sizes, and it looks like I'm probably going to move down to either 15x8's or 15x10's.
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Old 10-31-2006, 03:10 PM
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[QUOTE=cucumber1949]I used to run big bias tires on the back of my T (Cokers on a 15 x 12 Weld Draglite wheel). Couldn't keep them from flatspotting if they sat more than overnight -

That is very typical of the bias they all do that
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Old 10-31-2006, 03:16 PM
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How’s that hopey-changey thing
 
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.

By the way, I never had any handling issues running the bias-ply Cokers on the back and radials on the front but never had it rain either. [/QUOTE]

Never make a bet on this cause it is a looser, I had a 427 vett that I put right into a wall for this very reason, bias and radial are not a very worthy combo
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Old 10-31-2006, 03:35 PM
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15x15's

OK, I just got back from my local Discount Tire. Mike and I understand each other, and what I'm trying to get.
Here's the deal. If I sell the 15x15's, and replace them with a pair of 15x8 Centerlines just like them, (an easy task in the metroplex) I can mount a 275/60/15 radial T/A in the back, and a matching 195/65/15 on the front.
The 275/60's are 28" in dia. BUT they are 9.5 wide. That means if I mount them on an 8" rim they will be pulled up some, and their diameter will be a bit greater. Given that, I may only loose an inch of diameter.
Sounds like the best compromise to me, I get to run a set of radial tires on my rod which really helps with the bump steer and all the funny things that solid axle cars are prone to. m
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