putting a t56 in my GTA tommorow i'll be wrapping up the pedal assy install
so far so good,
although the one question i have about flywheels, i've got the centerforce flywheel for early model cranks for use with late model clutches/trannys

heres the question why is it so heavy ? when all you see people talking about it lightened flywheels? should i have cut out of mine?

i was told a heavier flywheel give the car more grunt leaving the line... whats the truth to flywheels

 

i have the same flywheel....do not cut it down....at wide open my rpms hardly drop cuz of the rotating mass from that monster!...it rocks..and anyway....why cut down a $380 flywheel?...you nuts?

 

flywheels store energy

think of it this way

i spin a heavy flywheel on a finger in one hand (pretend ) and on the other hand i spin a lightweight one.


try to grab one a put it to a stop... the light one you can just grab and stop easily, but the heavy one takes alot more work to stop it...



a heavy flywheel stores more energy for a given RPM then a lighter one, so when you leave the line, the engine wont bog down as quickly as it would with a lighter flywheel...

however, there is a downside too.. it makes the engine slower to rev up and slow down.


a lighter flywheel will make the car much easier to stall off the line because it stores less energy, however it also lets the engine rev quicker and slow down quickly....


so its all a matter of what you need for what you're doing with the car.

since i mostly road race, and im just so damn good i like lighter(but not lightweight) flywheels on my street cars... but then again, i downshift alot, and blip the thottle to match RPMs, and if the engines too slow, it slows the whole shift down... if i were to get a racing lightweight flywheel however, my car would be a total PITA on the street because i would have to feather the clutch off the line, or mash the gas and launch to keep the car from stalling.... it doesnt have enough stored energy to just left the clutch out from a dead stop.

thats the reason you see race cars spin the tires leaving the pits.. the clutch throw on thoes is basicly on/off and with lightweight flywheels, they have to rev the engine up high and dump the clutch...


anyhoo, i hope that answers your question.