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Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2517548
07/04/18 04:04 PM
07/04/18 04:04 PM
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Replied to Mopar Mitch

Re: 15" tires with a v speed rating [Re: Mopar Mitch] #2517564
07/04/18 04:43 PM
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I tried a few different 17 inch tire combos and came to the conclusion that 235/55-17 is almost perfect for muscle cars. That size is tall enough to fill up the wheel wheels, it has a good combination of ride and handling and it is an easy size to find.

DSC_2394 (Large).jpeg
Last edited by AndyF; 07/04/18 04:45 PM.
Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2517670
07/04/18 09:09 PM
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That looks good Andy!


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Re: 15" tires with a v speed rating [Re: Mopar Mitch] #2517834
07/05/18 09:09 AM
07/05/18 09:09 AM
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Originally Posted By Mopar Mitch
IMO, the problem with 17"-18" etc is the short sidewall... intended for better cornering/steering/handling response. Cars with monster BB engines -- especially a heavy Hemi -- need more sidewall to carry the weight, as well as through the corners. Short sidewall tires are not forgiving to the weight demands of a front-end heavy BB car.

You could consider a 16" and run 255-50-16 tires an minimum 8" rims.

The 17x8 or 17x9 YearOne replica Mopar rims do look pretty good. You could run 275-40-17 up front (preferably on the 9" rim), as well as a 305 or 315 on the rear ( a little pinched but will fir.. I've seen it). the YearOne rims have the correct backspacing to fit front and rear... I suggest staying with their 9" rims front and rear.

As everyone knows, the choices of 15" are so limited. I run BFG T/A 255-60-15 front, 275-60-15 rear, both on 15x8 vintage minilite road race rims... these are my cruising tires... rides/handles just fine.

I also run BFG Comp 255-50-16 on vintage minilite road race rims, 16x8 front and rear... for track lapping events... handles fine.

Eventually, I'll be getting 18x10 (or 10.5-11 wide) rims and run 275-35-18 200 compound tires for track events.

Unless you're running track events, the choices of 15" tires are OK for cruising... even at 245-60-15 fronts as the smallest you'd want to go.


I don't think you're wrong on anything you've said here but I'd like to offer a couple of (hopefully helpful) counter points.

1) as for big block cars needing the extra sidewall...I get your point but the question comes down to the goals of the driver. Sidewall flex isn't always the preferred way to manage suspension compliance, especially in cornering as any sidewall deflection will come at the cost of contact patch. Yeah, the extra sidewall usually gives a more comfortable ride but it's very seldom going to help any car get through corners. Before buying tires/wheels, we need to check the load rating...then tune the rest of the suspension to taste.

2) I'd say NO to 16" wheels...they're a good compromise for looks and more modern sizes but they're also pretty un-loved in the performance car world. They were probably "in style" for an even shorter amount of time so market support for 16" wheels may not be as good as 15" just a few years from now.

3)YearOne replica Mopar rims- ehh...100% personal taste but they do not look great to me. I really wanted to like them but after seeing them in person, they were just "ok" IMO if you squint. Lots of folks do like them but I'd strongly urge the OP to see them in person before buying.

As for your choice of 15" Minilites on the 'Cuda... flawless taste, sir. If I had the money, that's exactly the route I'd go. laugh



Last edited by MRGTX; 07/05/18 09:20 AM.
Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2517837
07/05/18 09:16 AM
07/05/18 09:16 AM
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I don't know anyone in the US of A who is running these but they look AMAZING. Vintage style, sticky compound, street legal tires...slightly limited in sizes but they do offer some 60 series choices that could work (245/60/15)...yeah, 80 treadwear rating...but still laugh

http://www.avonmotorsport.com/historic/historic/cr6zz

CR6ZZ-side.jpg
Re: 15" tires with a v speed rating [Re: AndyF] #2517839
07/05/18 09:22 AM
07/05/18 09:22 AM
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Originally Posted By AndyF
I tried a few different 17 inch tire combos and came to the conclusion that 235/55-17 is almost perfect for muscle cars. That size is tall enough to fill up the wheel wheels, it has a good combination of ride and handling and it is an easy size to find.


That looks perfect, IMO. I like that they're not trying to look vintage to hide the fact that they're a modern size...yet they're super clean looking.

What make/model are they?

Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2517840
07/05/18 09:25 AM
07/05/18 09:25 AM
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Those are the unreasonably priced tires I mentioned above. $400 each in the size you mention.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: 15" tires with a v speed rating [Re: Supercuda] #2517857
07/05/18 10:29 AM
07/05/18 10:29 AM
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Originally Posted By Supercuda
Those are the unreasonably priced tires I mentioned above. $400 each in the size you mention.


Ouch. I figured they'd be pricey but that's just painful for a tire that will probably only last a few thousand street miles.

I wonder how much of that is import costs.

Re: 15" tires with a v speed rating [Re: MRGTX] #2518156
07/05/18 09:12 PM
07/05/18 09:12 PM
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Originally Posted By MRGTX
Originally Posted By AndyF
I tried a few different 17 inch tire combos and came to the conclusion that 235/55-17 is almost perfect for muscle cars. That size is tall enough to fill up the wheel wheels, it has a good combination of ride and handling and it is an easy size to find.


That looks perfect, IMO. I like that they're not trying to look vintage to hide the fact that they're a modern size...yet they're super clean looking.

What make/model are they?


The tires? I don't know, some random tire I picked up at the local tire store. That is the nice thing about the 235/55-17 tire size. They are so common that you can get a speed rated tire for discount prices.

Re: 15" tires with a v speed rating [Re: AndyF] #2518401
07/06/18 01:38 PM
07/06/18 01:38 PM
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Originally Posted By AndyF
...
The tires? I don't know, some random tire I picked up at the local tire store. That is the nice thing about the 235/55-17 tire size. They are so common that you can get a speed rated tire for discount prices.


Oh, I actually meant the wheels! smile

Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2518531
07/06/18 07:07 PM
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The wheels are a different issue. Those are custom built Fikse rims. They cost a small fortune....

Re: 15" tires with a v speed rating [Re: Supercuda] #2518743
07/07/18 10:43 AM
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Originally Posted By MRGTX
I don't know anyone in the US of A who is running these but they look AMAZING. Vintage style, sticky compound, street legal tires...slightly limited in sizes but they do offer some 60 series choices that could work (245/60/15)...yeah, 80 treadwear rating...but still laugh

http://www.avonmotorsport.com/historic/historic/cr6zz

Originally Posted By Supercuda
Those are the unreasonably priced tires I mentioned above. $400 each in the size you mention.


That is because these are the Z rated racing tires that just happen to have a d.o.t. rating that I mentioned earlier.

They are popular for the kit Cobra crowd for period correct look and ultimate grip. You can find them state side at Roger Kraus Enterprises on the west coast or Frisby Preformance Tire in the mid west.

Re: 15" tires with a v speed rating [Re: AndyF] #2518915
07/07/18 05:38 PM
07/07/18 05:38 PM
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Originally Posted By AndyF
The wheels are a different issue. Those are custom built Fikse rims. They cost a small fortune....


While that’s a bit disappointing, I’m glad that it looks like you got what you paid for. They’re probably the best looking 17” wheels I’ve ever seen on a Mopar!

At least it will be extremely unlikely that anyone will be able to copy you. smile

Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2518946
07/07/18 07:27 PM
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Fikse strong, light and a work of art. you see them on high dollar cars. $1200 to $2000 each, do I need to say more but I want a set.


07 Porsche C2 997.1 6spd DD and SCCA Solo II SS
68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam
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Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2518963
07/07/18 08:16 PM
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Fikse FM5 wheels. Kind of a classic wheel design. I bought these back in the early 90's so they are about 25 years old.

DSC_1169 (Large).JPG
Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2521803
07/14/18 01:43 PM
07/14/18 01:43 PM
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Just been busy enough to read not reply . The Hemi challenger isn’t mine it a project I have been working on for a few years . Things change in the original build but one thing I bought early on were 4 no’s 15x7 ralley wheels and although we upgraded the brakes to larger frt and rear disk they fit the 15 Ralleys .

I don’t care so much about white letters but the car owner has some strange ideas about top speed runs .... I just want the car to somewhat safe at speed . It has dynoed at 750 hp and is an all aluminum fho hemi 727 with a gear vendors and 3:23 gears it is still a 70 challenger but the real top end will be limited to the driver . If it was my car I’d go to the 17” ralleys

Last edited by SANDYinNS Canada; 07/14/18 01:44 PM.

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Re: 15" tires with a v speed rating [Re: TC@HP2] #2521809
07/14/18 02:09 PM
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Originally Posted By TC@HP2
Originally Posted By MRGTX
I don't know anyone in the US of A who is running these but they look AMAZING. Vintage style, sticky compound, street legal tires...slightly limited in sizes but they do offer some 60 series choices that could work (245/60/15)...yeah, 80 treadwear rating...but still laugh

http://www.avonmotorsport.com/historic/historic/cr6zz

Originally Posted By Supercuda
Those are the unreasonably priced tires I mentioned above. $400 each in the size you mention.


That is because these are the Z rated racing tires that just happen to have a d.o.t. rating that I mentioned earlier.

They are popular for the kit Cobra crowd for period correct look and ultimate grip. You can find them state side at Roger Kraus Enterprises on the west coast or Frisby Preformance Tire in the mid west.


I duuno if I'd call an all weather tire a "racing tire that just happen to have a d.o.t. rating" but whatever. thing is, it is there and if someone wants to do stupid speeds with a 15" tire well, you gotta pay the man.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: 15" tires with a v speed rating [Re: Supercuda] #2522129
07/15/18 02:02 PM
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Originally Posted By SANDYinNS Canada
Just been busy enough to read not reply . The Hemi challenger isn’t mine it a project I have been working on for a few years . Things change in the original build but one thing I bought early on were 4 no’s 15x7 ralley wheels and although we upgraded the brakes to larger frt and rear disk they fit the 15 Ralleys .

I don’t care so much about white letters but the car owner has some strange ideas about top speed runs .... I just want the car to somewhat safe at speed . It has dynoed at 750 hp and is an all aluminum fho hemi 727 with a gear vendors and 3:23 gears it is still a 70 challenger but the real top end will be limited to the driver . If it was my car I’d go to the 17” ralleys


In triple digits speeds these things get to be a handful for any sustained amount time. A 150 blast down a strip is for a few seconds at top speed is entirely different than 120 for 5 minutes. I would think that H rated tires may be fine. SAE speed rating tests the tire at the target speed for an hour at 100*. That's more than I'd imagine the driver, and the car, would be up to. Maxxis, MT SR, and Hoosier Pro Street can do this. If skinnier tires are okay, the V rated ones higher up in the thread may be okay. The Avons can take him into Z rated territory. He also could look at Hoosier Circuit Racing wet tires that have a street appearing tread. However, these may not have a d.o.t. stamp which could be a problem if he has street inspections to meet. IMO, if he has sprung for a 750 hp Hemi, then $400 each for Z rated tires is chump change. Tires and brakes are consumables. He can't cheap out on them because they are.

Originally Posted By Supercuda
Originally Posted By TC@HP2
Originally Posted By MRGTX
I don't know anyone in the US of A who is running these but they look AMAZING. Vintage style, sticky compound, street legal tires...slightly limited in sizes but they do offer some 60 series choices that could work (245/60/15)...yeah, 80 treadwear rating...but still laugh

http://www.avonmotorsport.com/historic/historic/cr6zz

Originally Posted By Supercuda
Those are the unreasonably priced tires I mentioned above. $400 each in the size you mention.


That is because these are the Z rated racing tires that just happen to have a d.o.t. rating that I mentioned earlier.

They are popular for the kit Cobra crowd for period correct look and ultimate grip. You can find them state side at Roger Kraus Enterprises on the west coast or Frisby Preformance Tire in the mid west.


I duuno if I'd call an all weather tire a "racing tire that just happen to have a d.o.t. rating" but whatever. thing is, it is there and if someone wants to do stupid speeds with a 15" tire well, you gotta pay the man.


If you read into the description far enough to see that they call this an "all weather" tire than you also read that they are a "road legal competition" tire and that they use "competition compounds". You may have also noticed that these tires are listed as an "approved 1B permitted race" tire in the UK, which means it is the equivilent of a Hoosier d.o.t. compliant SCCA competition tire. Maybe your cherry picking your points, maybe you're just a lazy reader and stopped once you found your point, but, as you say...whatever.

Re: 15" tires with a v speed rating [Re: TC@HP2] #2522183
07/15/18 04:08 PM
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Originally Posted By TC@HP2



If you read into the description far enough to see that they call this an "all weather" tire than you also read that they are a "road legal competition" tire and that they use "competition compounds". You may have also noticed that these tires are listed as an "approved 1B permitted race" tire in the UK, which means it is the equivilent of a Hoosier d.o.t. compliant SCCA competition tire. Maybe your cherry picking your points, maybe you're just a lazy reader and stopped once you found your point, but, as you say...whatever.


Pot kettle

If I was only reading enough to prove my point I would have read that is it not DOT compliant. The equivalent is not the same as having DOT compliance on the sidewall.

Point I was trying to make, which I apparently didn't make to you, was that if you want to run stupid speeds with a 255/60R15ish tire this is what you have to pay and what you have to run.

If you are a bit more flexible in your sizing you can get more reasonably priced tires that meets the speed rating and are genuine street tires not pseudo ones.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: 15" tires with a v speed rating [Re: SANDYinNS Canada] #2523016
07/17/18 11:41 AM
07/17/18 11:41 AM
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Great reading!
Anyone admit to running 15" hoosier DOT marked tires on the street?
I'm thinking of the autocross, and road race tires, but I think there are oval-track DOTs also.
Many racing slicks don't hold air for long periods, do these?
I know we don't plan to drive our classics in the rain, but stuff happens!
So how are the hoosiers?
Any greater tendency to pick up road debris that can cause punctures?

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