Shedding weight doesn't add horsepower per se, it decreases the horsepower to weight ratio.IS 10 LBS LESS TO ADD 1HP ?
Less beers equals more horses. You can shave weight off the bike or your belly. End results the same.less weight to propel down the track.Shedding weight doesn't add horsepower per se, it decreases the horsepower to weight ratio.
Example: Let's take a factory Gen 1 Vmax. It weighs 635 pounds and produces a max of 145 HP.
That gives you a ratio of roughly 4.4 to 1. Meaning that each horsepower you have has to move 4.4 pounds of weight. To give some perspective, a Ferrari 458 Italia weighs in at about 3,500 pounds and produces 560 horsepower.
That gives the Ferrari a ratio of 6.25 to 1.
Here comes the funny part: The two will run about the same quarter mile - around 11.5 seconds. (The Vmax simply runs out of horsepower after it gets rolling as the Ferrari comes into its own.)
So the fastest way to make your bike or car quicker is to shed weight.
Put an aftermarket exhaust on that same Gen 1 Vmax, maybe get a lighter lithium-ion battery, get rid of some instrumentation and unnecessary parts like the air box cover, etc. and let's say all of that drops about 25 pounds off the bike.
Well, now, without touching the engine at all, you've moved your ratio from 4.4 pounds per horsepower to 4.2 pounds per horsepower.
That may not seem like a huge difference, but you will see it on the clock (provided you're running consistently, of course.) That 25 pounds could take you from 11.5 seconds down to 11 flat, maybe a bit beyond.
It makes a big difference. Again, only against a clock for the most part. To see a real difference in day to day riding it would take a pretty dramatic drop in weight.
Shed weight AND improve the engine performance though and you're talking about massive gains. The two really do go hand in hand.