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View Full Version : Weight savings to HP gain ratio?


Tri-ZNate
08-03-2007, 01:55 AM
Anyone know it? I was trying to think of it tonight and for some reason I want to say every 1lb you shave off is 1/4 more HP. Anyone know it?
Jason Hall
08-03-2007, 09:34 AM
I believe It's 1 hp gain per 100lbs lost. Not for sure on that, but I recall reading that In a snowmobile clutch & gearing book. There Is probly alot of different variables to add Into the final figure's anyway.
pickleweasel_00
08-03-2007, 02:12 PM
so is it really gaining horsepower, or just freeing up otherwise used horsepower. Guess that's the same thing, huh?
xd 200x
08-03-2007, 05:52 PM
It is 100lbs loss = the equivalent of 1 hp gain I think that is right. If I'm wrong someone tell me because I have been going by that for years.
Tri-ZNate
08-03-2007, 08:42 PM
thanks guys, i didnt think it was such a drastic percentage
atctim
08-04-2007, 01:41 AM
wouldn't this equation have to do with vehicle weight percentages.

Loosing 50 pounds off a pick-up truck VS loosing 50 pounds off a 250R would be significantly different.
BigGreenMachine
08-09-2007, 09:37 PM
http://img.photobucket.com/albums/v514/BigGreenMachine/46a6cf05.jpg

http://img.photobucket.com/albums/v514/BigGreenMachine/62caab58.jpg

http://img.photobucket.com/albums/v514/BigGreenMachine/7f46d485.jpg

http://img.photobucket.com/albums/v514/BigGreenMachine/2-8660.jpg

http://img.photobucket.com/albums/v514/BigGreenMachine/7ad0f4af.jpg
RedRider_AK
08-10-2007, 03:10 AM
Man, what caught my attention in that last post was the sticker ad... look at all those old school trike stickers! LOL.
toocheaptosmoke
08-10-2007, 11:18 AM
Man, what caught my attention in that last post was the sticker ad... look at all those old school trike stickers! LOL.

I know, those are great!
Rustytinhorn
08-11-2007, 01:59 AM
I was told on snowmobiles it was every 9 or 18 pounds lost gives 1 more horsepower. Cant remember for sure, but could ask again.
100lbs to 1hp seems a little heavy. If you've ever ridden with a passenger, like a little brother that weighs under 100lbs, you definately notice a drastic loss, and I know its more than 1 horse.
Erics350x
08-12-2007, 12:00 AM
On cars is 7lbs is = to 1hp
x.system
08-12-2007, 12:24 PM
On cars is 7lbs is = to 1hp

I've also read somewhere that 7lbs = 1hp
BigGreenMachine
08-12-2007, 05:51 PM
Like the article says if you can remove 40lbs from the machine then you would notice the gain. I bet shaving 20 alone would make a noticeable difference.