[swarb]

Originally Posted by team3d

guys, google crank pulley damage, you will find almost 0 complains on light weight pulley, and if you click on google photos, all the damage crank pulleys you will find are stock, damped pulley.

if you drive a 30-60 years old domestic v8 ? i will not suggest 1pc pulley. for a inline 4 or boxer engine, i have not witness any engine that's damaged due to the removal of stock crank pulley

as for the power gain, are you gonna run faster with heavy shoes or lighter shoes ? even for lebron james, he can still run very fast with heavy shoes, but with lighter shoes, he will benefit more & use less energy...

who can honestly tells me, running with 20lbs back pack or wearing a 2lbs combat boots will make you run faster ?

light weight wheels, brake rotors, pulley, flywheels, crankshaft, pistons & rod all can reduce engine's energy use...

http://www.evoxforums.com/forums/showthread.php?t=50463

maybe because ALL cars come with stock pulleys?
maybe because less than 1% of cars get light weight pulleys?

Have you worn Lebron's shoes? or even picked up a pair? They're heavy! They are built for strength.