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Old 03-12-2007, 05:26 PM   #1
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anybody out there knowledgeable from first hand experience with VHT.. specifically how well does it handle temperatures either hot or cold? is it worth puting down? once you start using it can you stop or does it get worse than when you started? any more advice is appreciated.. thanks..
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Old 03-12-2007, 05:30 PM   #2
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Are you going to run the new Xray shaft drive car on the VHT track??? Sorry couldn't resist.
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Old 03-12-2007, 05:33 PM   #3
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now that is pretty funny.. no hard feelings.. i still chuckle at all the folks hot on that shaft after all the bashing of the associateds for years..
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Old 03-12-2007, 06:26 PM   #4
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We used it for years for out door asphalt racing, mostly with gas cars and foam tires. It's probably going to be the best traction you can come up with compared to the sugar waters or pop syrups. Toledo has a good formula of vht, castor oil and I think Mountian Dew syrup, but I would go the gas thread and ask Ted Hammer. We thinned our vht 50/50 with methanol and applied with a sprayer. VHT does not like moister. A light sprinkle or some wet spots on the asphalt creates a very slick condition. Once dry, traction comes right back. Current blends of VHT is better then it's been in the past. As the track heats, you will loose a little bit of time/lap, but not that much. Some tracks slow more then others. If you had a track 75 x 150, expect to put down 3 gallons of vht, 3 gallons of methanol to get good grip. Blow the asphalt first. "DRY" is key. If you can not keep the asphalt dry, go with sugar water.
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Old 03-12-2007, 06:47 PM   #5
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what about with rubber tires? is it still worth it? also, are people using sp-162 sp-163 or sp-165 all different products.. thanks.
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Old 03-12-2007, 06:56 PM   #6
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from experience in drag racing,
vht is very sticky but form groves of grip so you will literally lose traction if u run wide also the 50/50 mix with methanol is only because u want it dry quickly, if u want maximum traction and dont mind waiting a couple hours use 100% vht thats what drag racers do for big events and cars that like load of grip off the starts.
be sensible only spray corners as straight dont really need it imo, u could save your self a lot of vht only spraying parts that need it.
good luck
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Old 03-12-2007, 07:00 PM   #7
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if we don't like it, will it just wear off and go away and be like it was? or is it great, then bad for a while till it's gone?
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Old 03-12-2007, 07:26 PM   #8
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our local club used to use the VHT, when it is first applied it is really tacky
you could hear your sneakers getting stuck in it like fly paper
as the day goes on it less tacky and you need to re-apply whatever cutting agent you are using, and it is pretty hard on the rubber tires

now we just use the cheapest grape soda we can find and it works just as well and it is much easier on the rubber tires
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Old 03-12-2007, 09:52 PM   #9
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VHT will quietly fade away after a few weeks (outdoors). If you plan on rubber tire only, VHT might be a bit aggressive. It might be better look into sugar/water solutions. The only pit fall is when the moister comes up (or falls from the sky), if you run right away... you will get candy coated tires that will need cleaning. I can't tell you what grade of VHT we used, it came in a 55 gal drum and came from a drag shop.
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Old 03-13-2007, 07:05 AM   #10
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we run rubber tires in touring, but we also have a pancar/ F1 class on foams... we can get "some" VHT for free, but i am worried about getting "addicted" and what happens if we have have to start buying it or decide to not use it any further.. thanks for all the great input guys... really appreciate it.. how far in advance before a race do we need to spray it down too?
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