Top End Speed

L

lhviper

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Joined
Mar 24, 2004
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77
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PA
How much top end speed will I gain if I go to a 1" studded track with 9 tooth drivers compared to a 1.25" studded with 8 tooth drivers? The sled is a Viper S.
 
i really like my 1.5 inch, but i found i am ripping lugs off very easily (it is the 1.5 inch polaris/camoplast soft lug), and it KILLS top end.
 
I disagree that tall lug kills speed, I have a 144x2.0" finger track on my sled, and i had it clocked at 185km/h top speed with 23/37 gears and 8 tooth drivers. the taller gear is better in powder snow, and gears her up same as going up 2 teeth on top, I think studs which are heavier will slow you down as much as a taller lug track....
 
if you dont believe it do an apples to apples comparison in the same conditions running to the two different tracks. Its not the weight that is the issue with the taller lugs, it's the fan effect created by the lugs, they make A LOT of wind resistance, and the air gets trapped up in the front of the tunnel around the axle and actually mildly compresses, adding to the problem. Apples to apples, taller lug tracks DO drop top end, its not a question.
 
ah, maybe tha'ts why mine was fast then, im not using a deep lug paddle track, it's a 2" finger track and the fingers don't catch much air, thery are all seperated in small groups of three and even then they are only 1/2 the height together then they seperate. Before i tried to cut the stock 2" paddle track down to 1.5" no gain in 660 feet at 140km/h on radar, then cut id down again to 1.1" and all it would do then was spin on the startline and still never got over 140 at the finish line, so i really don't think it will make that big a difference either way, imho............
 
yamaholic22 said:
if you dont believe it do an apples to apples comparison in the same conditions running to the two different tracks. Its not the weight that is the issue with the taller lugs, it's the fan effect created by the lugs, they make A LOT of wind resistance, and the air gets trapped up in the front of the tunnel around the axle and actually mildly compresses, adding to the problem. Apples to apples, taller lug tracks DO drop top end, its not a question.
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I agree with ya

track pitch can help alot, but nomatter how you cut it it takes power to compress air
 
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