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Big wheels on Dyno ???

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Old 11-29-2010, 09:51 PM
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Default Big wheels on Dyno ???
Does anyone knows how much (rwhp) difference will I see dynoing my truck on the 28s (36" tall) and the stocks.
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Old 11-29-2010, 09:58 PM
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theres may variables but i ran 35's on the dyno my numbers are below
i think others put down 280-300+
its not so much the diameter but the weight
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Old 11-29-2010, 10:00 PM
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nelsons performance posted something a while back, and it was like 35s to 30s and it was 100hp difference.
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Old 11-29-2010, 10:09 PM
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Originally Posted by dlt76028
nelsons performance posted something a while back, and it was like 35s to 30s and it was 100hp difference.
where?
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Old 11-30-2010, 12:18 AM
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i second that. need to see this.
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Old 11-30-2010, 06:20 AM
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Yeah, I saw the same post. I think it is on ls1truck.
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Old 11-30-2010, 07:08 AM
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If I remember correctly there was a significant increase in measured HP by reducing tire diameter (and weight) on the roller dyno. I think it was something around 50hp but it's been a couple of years since Nelson posted that...
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Old 11-30-2010, 07:14 AM
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There is a pretty large difference, 50-100hp is typical.
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Old 11-30-2010, 08:20 AM
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I always wanted to test this on mine. I never had an extra set of wheels and tires when I'd go to the dyno. The 20's are heavy!
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Old 11-30-2010, 01:21 PM
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heres the link, it was 100hp....

http://www.ls1truck.com/forums/dynod...r-hp-dyno.html
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