thewb,

i think gdupg35 was kidding about losing the 2.11115 per.

 

no there is an equation though its something like for ever 3 lbs. of rotational mass it would be like adding 100 pounds inside the car and for ever 7 pounds inside the car is one horse power is lost. i don’t think my conversions are right but there is an equation like that.

 

Here's the formula that Japanese Tuner, Top Secret, gave me several years ago in Japan. Dropping or increasing 1 kg of unsprung weight equals to 15 kgs added or subtracted from curb weight of car. Hope this helps.