I don't see a problem. When I bought my Mark VIII, it had Kumhos on it rated H. Your Mark VIII will never go over 130 mph anyways unless it has a tune. When are you going to go 130mph anyways? My skinny Firestones up front are rated 112mph. Good enough for me considering I never trap that speed even at the end of the track.I was thinking of getting a set of tires at he next lower rating below V which is 130MPH and was wondering if I will notice it is a lesser tire.
that is incase you do go the "rated" speed. the tires tend to heat cycle out and get hardAnother interesting tidbit is that the V rated tires always have a lower milage warranty within the same product.
IMHO the load rating is more important then the speed. From what I saw on a show on this a long time ago, to get the speed rating the tire is placed on a machine like a road force balancer. The tire is spun and must not fly apart (from centrifugal force that causes heat build up internally) at the desired speed rating for a set time period. It does not measure any other characteristic.OK, I thought we've discussed this many times before - as it came out with a manufacturer requirement of V, there's more to it than speed. Wouldn't tire construction and the weight of our cars, etc. have something to do with not using a touring tire?
Really? I got my tires i used for HPDEs for my Vette heat cycled to increase their longevity.that is incase you do go the "rated" speed. the tires tend to heat cycle out and get hard
And again, Mark VIIIs will NOT go 150mph in the stock condition that they were when they rolled off the assembly line. The governor is set at 130 for 3.08 geared Mark VIIIs and 124 for 3.27 geared Mark VIIIs. I see no problem with a tire shop selling H rated tires for a car that will go no faster than H (130mph). On the other hand, if you get an H-rated tire on a Mark VIII that is tuned and the tire blows out at 150 mph(only achievable with a tune), then it is your fault IMO for not relaying the information on the "extras" that were added to the vehicle.I would think that from a liability standpoint if you sell a car that goes 150 you would not put a lower rated tire on the car.
I agree.You are reading too much.
The speed rating comes with better tire construction, period.
Of course you can run a lower speed rated tire, but it will not be as high of quality tire and as susceptible the Mark VIII is to NVH issues, you get what you pay for.
in general on performance tires you want the initial heat cycle done right as to not cause hard spots (fresh tires and a fast heat cycle can cause this) but a Tire only has a certain number of cycles before it starts to change the consistency of the rubber.Really? I got my tires i used for HPDEs for my Vette heat cycled to increase their longevity.
http://www.discounttiredirect.com/direct/brochure/info/tmpInfoHeatCycling.jsp