20lbs = ?HP

[wildman]

I was thinking about ways to make my 75 250 faster for better starts when I realised less weight makes a better power to weight ratio. So, if I lost 20lbs, what would the effect be in horsepower terms? I figure a neat way to go faster without touching my bike is to shed some excess pounds. Any way to figure this? After breaking my foot this winter I fell off my routine and I am at a all time high weight. Thanks, Wildman

1975 250 Cross Country, 1974 175 Jackpiner, 1975 125

[Rocket]

Wildman
I am not sure how true this is, but I always heard that 7 lbs = 1 horsepower, drop 7 lbs, gain 1 horse.
Rocket

[lksseven]

Wildman,

//www.stockmopar.com/reference/moparterms.html

The standard unit for measuring engine power: 1 hp is the power required to lift 550 pounds of weight one foot high in a second.
//www.thenad.com/cgi-bin/articleman.cgi

Not exactly sure how to apply those definitions, though.

Larry Seale
I choose to ride

[Dwight Rudder]

10lbs = 1 hp.
approx.
Dwight

Dwight Rudder
7 time ISDT / E medalist
8 time National Enduro Class Champion.

[farmer58za]

That's a useful bit of info Dwight.
Think about this too: 20 lbs is about the weight of a large bag of dogfood. Try riding an enduro with one of those strapped on your back........


Regards

David
'75 KTM GS250
'75 KTM GS400

[tomale]

Thanks for the motivation, let me see Port my cylinder or gain 5 horse by loosing weight.... Easy to say, tough to do!! Time to step up my efforts to loose those pounds.

Thom Green,Still crazy after all these years!
76' 250 MC5 (orginal owner)
75' GS400 (project bike)
72'sixday (project bike)

[wildman]

I should be able to gain about 2 or 3 HP then. (Or more but lets be real!) Thanks for the reply, an easy to remember motivator. Wildman

1975 250 Cross Country, 1974 175 Jackpiner, 1975 125