i discovered a H rated 130mph 255 60 15 tire
#1
Safety Car
Thread Starter
i discovered a H rated 130mph 255 60 15 tire
i think these are my next set price is amazing
hmmm sp 7 only 29 pounds.... looks beefy
https://www.google.com/search?q=nank...pj8Jts0UvCM%3A
http://www.ebay.com/itm/NANKANG-Perf...9XxaUb&vxp=mtr
https://www.amazon.com/Nankang-SP-7-.../dp/B00PBW45OE
hmmm sp 7 only 29 pounds.... looks beefy
https://www.google.com/search?q=nank...pj8Jts0UvCM%3A
http://www.ebay.com/itm/NANKANG-Perf...9XxaUb&vxp=mtr
https://www.amazon.com/Nankang-SP-7-.../dp/B00PBW45OE
Last edited by slickfx3; 09-11-2016 at 11:02 PM.
#3
Safety Car
Thread Starter
new in nov 2014 bfg new in 1976??
it's 2 pounds lighter than the bfg same size and goes 20mph more
besides my c3 is a truck wannbe
and since that technology comes in 16,17,18,to22 inches.... perhaps it's new technology not rooted in the 80's
Last edited by slickfx3; 09-12-2016 at 12:56 AM.
#4
Le Mans Master
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I assume that if a tire is rated at 130 mph that its safe to drive on at that speed for some minutes at least. If you had a tire rated at 100 mph would it be safe to drive it up to 130 mph for 5 or 10 seconds?
#5
Team Owner
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St. Jude Donor '05
10 ply truck tire
dont think anyone would know better look fine to me
To take a 100mph tire 20mph above that for a few sec no big deal done it many times, sure theres an unlisted safety margin built it like if GM says a block is rated for say 400hp more like close to 500.
dont think anyone would know better look fine to me
To take a 100mph tire 20mph above that for a few sec no big deal done it many times, sure theres an unlisted safety margin built it like if GM says a block is rated for say 400hp more like close to 500.
Last edited by cv67; 09-12-2016 at 11:33 AM.
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Priya (09-12-2016)
#6
Drifting
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C3 of Year Finalist (track prepared) 2019
There's the Maxxis Marauder MA-S1 is also available and H rated, and personally I'd lean towards the Maxxis, having owned both Maxxis and Nankangs on cars of mine in the past (not this size or model though). The Maxxis Marauders were what I was going to buy for my car if I stayed with 15"s.
#7
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2023 C5 of the Year Finalist - Modified
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St. Jude Donor '09-'10-'11
Tires are speed tested to about 2.5 steps above where they are rated. Each step has a certain amount of time it must spend at that speed, ie 15min at 135mph, and then it moves to the next one. For blasting down the highway at 130 for a short time should be fine.
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Priya (09-12-2016)
#8
Drifting
Generally speaking, a tire's speed rating is a measure of it's ability to dissipate heat. Every revolution of a tire, causes a flex in the sidewall as it bears the weight of the vehicle. A tire goes through about 30 revolutions a second at 130 mph, that's a lot of heat. You can reduce the heat generated by stiffening the sidewall to reduce the flex, lightening the sidewall to dissipate the heat faster, or add air pressure to reduce the flex. A plain old T rated tire is still good for 112 mph, and can easily tolerate more than that for short periods. That speed rating is based on consistent running at that speed, performed in a lab, with the tires spinning on a roller. Engineering speak aside, I'll never drive my Vette 100 mph, much less 130, and the tires will need to be replaced due to age, long before the tread wears out. Buy what you want, but don't waste your money on hype. I like my BFG TA's'cause they look good to me and sound good when I light 'em up. Those Chinese tires seem like a deal on price alone, and be advised, many name brand tires like BFG and Bridgestone are made in Asia as well. Sorry, I'm an engineer and spend 15 years in tires so I had to speak up.
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#9
Safety Car
Thread Starter
10 ply truck tire
dont think anyone would know better look fine to me
To take a 100mph tire 20mph above that for a few sec no big deal done it many times, sure theres an unlisted safety margin built it like if GM says a block is rated for say 400hp more like close to 500.
dont think anyone would know better look fine to me
To take a 100mph tire 20mph above that for a few sec no big deal done it many times, sure theres an unlisted safety margin built it like if GM says a block is rated for say 400hp more like close to 500.
stupid but they all go a lot faster than whats on the books
but some enthusiasts are hung up on v w and z ratings
#10
Safety Car
Thread Starter
Generally speaking, a tire's speed rating is a measure of it's ability to dissipate heat. Every revolution of a tire, causes a flex in the sidewall as it bears the weight of the vehicle. A tire goes through about 30 revolutions a second at 130 mph, that's a lot of heat. You can reduce the heat generated by stiffening the sidewall to reduce the flex, lightening the sidewall to dissipate the heat faster, or add air pressure to reduce the flex. A plain old T rated tire is still good for 112 mph, and can easily tolerate more than that for short periods. That speed rating is based on consistent running at that speed, performed in a lab, with the tires spinning on a roller. Engineering speak aside, I'll never drive my Vette 100 mph, much less 130, and the tires will need to be replaced due to age, long before the tread wears out. Buy what you want, but don't waste your money on hype. I like my BFG TA's'cause they look good to me and sound good when I light 'em up. Those Chinese tires seem like a deal on price alone, and be advised, many name brand tires like BFG and Bridgestone are made in Asia as well. Sorry, I'm an engineer and spend 15 years in tires so I had to speak up.
#11
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There are some differences in construction of tires in the different speed ratings. Cap plies are usually not used in the cheap s and t rated tires usually used on our old cars. H and above speed rated tires usually have a single, or multiple cap plies which make these much safer and more resistant to blow out, especially if driven at higher speed. To most of us it doesn't matter, but given the choice, the h rated tire is a much more well constructed tire, whether Chinese or not.
Almost all tire failures are in the s and t rated type tires, where h and above are almost immune, especially in the multiple cap ply speed ratings. This is a quote I found from an engineer from a tire company when I was researching this:
"So an S rating would - on the surface - seem to be adequate for use in the US where there are speed limits everywhere.
But, in order to pass an H speed rating, a tire more or less has to have a cap ply. This change has a profound effect on failure rates, way beyond what the increase in speed rating suggests. The failures rates are so low for tires with cap plies that court room "experts" claim that tire manufacturers are negligent for not using cap plies even in their S rated products. (My response to that is that these "experts" must also be saying that tires ought to have a minimum of an H speed rating - and if that is true, the "experts" ought to be lobbying NHTSA to specify H rated tires for any tire sold in the US.)
But the point I want to make is that the step between T and H is enormous from a tire durability point of view. And I don't recommend anyone use anything less than an H rated tire. Considering that the risk of a tire failure includes fatality, the cost / benefit seems to be there."
Almost all tire failures are in the s and t rated type tires, where h and above are almost immune, especially in the multiple cap ply speed ratings. This is a quote I found from an engineer from a tire company when I was researching this:
"So an S rating would - on the surface - seem to be adequate for use in the US where there are speed limits everywhere.
But, in order to pass an H speed rating, a tire more or less has to have a cap ply. This change has a profound effect on failure rates, way beyond what the increase in speed rating suggests. The failures rates are so low for tires with cap plies that court room "experts" claim that tire manufacturers are negligent for not using cap plies even in their S rated products. (My response to that is that these "experts" must also be saying that tires ought to have a minimum of an H speed rating - and if that is true, the "experts" ought to be lobbying NHTSA to specify H rated tires for any tire sold in the US.)
But the point I want to make is that the step between T and H is enormous from a tire durability point of view. And I don't recommend anyone use anything less than an H rated tire. Considering that the risk of a tire failure includes fatality, the cost / benefit seems to be there."
Last edited by 69ttop502; 09-13-2016 at 08:24 AM.
#12
Melting Slicks
Interesting stuff about the H rated tires. As far as 130 MPH, how often will you really drive that fast? Hell, that's damn near double the speed limit on most of the fastest highways. A traffic ticket at that speed is WAY more than the cost of a whole set of tires, if not a trip to jail.
#13
Safety Car
Thread Starter
Interesting stuff about the H rated tires. As far as 130 MPH, how often will you really drive that fast? Hell, that's damn near double the speed limit on most of the fastest highways. A traffic ticket at that speed is WAY more than the cost of a whole set of tires, if not a trip to jail.
it's like HP and TQ,no one really needs ( unless racing) more than XXX, but it's good to know you have it....call it piece of mind
and besides the technology may be superior in handling than our low rated bf goodriches
Last edited by slickfx3; 09-13-2016 at 11:54 AM.
#14
Team Owner
I bought BFG T/A H-rated back in 2001 or so. I was very happy to find these tires in 225/70 15 size, although they were only available in blackwall (no RWL). They no longer make these tires with H rating! I am very reluctant to give them up, even though they are a bit old at this point. It is hard to find ANY tires in 225/70 15 these days, let alone an H-rated specimen. I researched it a while back and came up with Hankook, but I am having a hard time accepting the word "Hankook" spelled out (on the tires) on my 69 Corvette.
#15
Safety Car
Thread Starter
I bought BFG T/A H-rated back in 2001 or so. I was very happy to find these tires in 225/70 15 size, although they were only available in blackwall (no RWL). They no longer make these tires with H rating! I am very reluctant to give them up, even though they are a bit old at this point. It is hard to find ANY tires in 225/70 15 these days, let alone an H-rated specimen. I researched it a while back and came up with Hankook, but I am having a hard time accepting the word "Hankook" spelled out (on the tires) on my 69 Corvette.
i agree that is lame hankooky, they want to sell more tires, consult with an publicity agency and get with the program, perhaps something Italian sounding
you can kinda hide nangkang since it;s blackwall LOL
Last edited by slickfx3; 09-13-2016 at 01:07 PM.
#17
Drifting
A couple of interesting facts. If you've seen the (true story) movie "the world's fastest Indian", you may recall how he used ancient motorcycle tires with the tread shaved off to go 200 mph. The lack of tread made the tire lighter and greatly reduced the centrifugal force and heat acting on it. If you've researched the latest "low rolling resistance" tires, you'll find that they are specially designed to be lightweight, to reduce rotating mass, and although a Prius doesn't need it, they come with H speed ratings. As explained to me by my Bridgestone rep. I ran a shop that mounted 300-500 tires per week and did this for 14 years. I've seen everything-at least twice... Any tire can blow, just knowing what to do if and when it happens can save your life and your ride. (and please, torque your lugnuts)
#18
Instructor
I have been using B F Goodrich radial T/As on both my C3s in 255/60x15, RWLs. Tire Rack has them for around $600 a set. I don't track either of those cars and they only get up to 100mph every now and then. I just like look, since was raised in Sebring, Fl, it brings back memories of the John Greenwood "stars and stripes" Corvettes of the early 70's. They raced on them back then, shaved down of course.
#19
Safety Car
Thread Starter
I have been using B F Goodrich radial T/As on both my C3s in 255/60x15, RWLs. Tire Rack has them for around $600 a set. I don't track either of those cars and they only get up to 100mph every now and then. I just like look, since was raised in Sebring, Fl, it brings back memories of the John Greenwood "stars and stripes" Corvettes of the early 70's. They raced on them back then, shaved down of course.
http://nankangtyres.com.au/tyre/sp-7/
#20
Melting Slicks
There's the Maxxis Marauder MA-S1 is also available and H rated, and personally I'd lean towards the Maxxis, having owned both Maxxis and Nankangs on cars of mine in the past (not this size or model though). The Maxxis Marauders were what I was going to buy for my car if I stayed with 15"s.