Reducing a 100Kg of weight = How much H.P of Gain ...
100Kg = 220 lbs

 

Dont know about Kg, but a general rule I always heard was 7lbs = 1 HP

 

7lbs = 3kgs

 

anw thx man ..

 

I think it depends on the HP figures on the car itself!!!

For example, if the car has 500hp and weight 1000 kg, the reduction on 100kg (10%) would increase the power to weight per same amount, therefore, the gain will be 50hp..

I dont know if I understood the question, but if I did so,, I think im right

 

You won't gain horsepower technically speaking, I think you would just be increasing your car's power efficiency.

 

conservation of energy

Potential Energy = (1/2)(Mass)(Velocity^2)

that should be the relationship.

 

That's what I was looking for, Potential Energy is what's increasing.

 

Potential energy is the same. The velocity is increasing.

Look at it this way, a semi truck has much more power and torque than an Evo, but why is an Evo faster? The energy associated with movement of an object is associated with 2 things:

Mass in motion
Velocity of that Mass

Since you have less mass the velocity is higher.

 

Your power to weight ratio increases which results in faster acceleration, you don't gain power but the car does become faster. That's the reason a gutted civic hatch putting out 250whp can compete with a heavier car putting out 350whp.

 

 

https://www.evolutionm.net/forums/mo...reduction.html

 

If your drag racing a rule of thumb is 100lbs is worth one tenth of a second. I don't have any proof but most people who I have talked to that race agree with this.

 

nice, I was just talking to a couple of guys at my shop about how much weight could be dropped of my street trim evo.

Funny these threads always seem to pop up when I need them

 

correct me if im wron but potential energy = mgh where your have mass * gravity * height Kinetic energy = 1/2 * mv^(2) sorry to be picky im sure thats what you meant jp7