lucky14
Pro
Posts: 1439
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posted August 20, 2006 05:49 AM
quote:
The rule is every 7 lbs equals 1 horsepower...either gained or lost. So 25lbs added equals 3.5hp lost. So when I replaced my stock exhaust with the Brock Gen 3 I lost 31 lbs off of my bike so it was like gaining a little over 4 horsepower just in weight savings. 
Why would that rule work?
Pick some numbers - with a bike weight of 550 and a 200 lb. rider, that would be 750 lbs. Divide that by a nominal 165 HP at the wheel, and you have *about* 4.5 lb/HP. It seems that you could either add 1 HP or remove 4.5 lbs and get the same results.
Saving 30 lbs on the exhaust would be equivalent to adding over 6HP.
Is my logic flawed???
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You only need two tools: WD-40 and Duct Tape.
If it doesn't move and should, use the WD-40.
If it shouldn't move and does, use the duct tape.
  
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Bently
Needs a life
2012 14r In Blue and no Mods!
Posts: 5428
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posted August 20, 2006 06:53 AM
I've always heard the same thing every 7lbs is 1hp. Also always heard ever 20 pounds is worth a .10.
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Nukedog
Expert Class
Posts: 449
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posted August 20, 2006 01:40 PM
***Well Im fat (265 in leathers) but I am definately not a noob***
At that weight you trap about 3mph in the 1/4 more than a Busa would stock for stock so if you are winning by 10 bikes it is because you are the better rider and not only because the bike is stronger.
A bone stock 06 Gixxer 1K has beaten a bone stock 14 and a piped 14 here in Jax and more than once...
Where are you located at Suicycle??? T
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02 Busa...Turbo...
09 YZF-R6S...
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