esemes

resized

350ed

iTrader: (17)

Thanks for posting that Jason. I couldn't express it well technically
So what's the stock flywheel/clutch diameter?

Jason@Performance

iTrader: (11)

the diamater of the TILTON / JWT / NISMO and ALL flywheels for this car are the same...

the diamater of the stock clutch I believe is about 12.5"... need to measure again... I forgot


thanks for re-sizing I didnt relize it was that big... I just scanned and posted...

350ed

iTrader: (17)

Oh, I figured the Tilton flywheel was also smaller. Guess all those holes keep it light still

Jason@Performance

iTrader: (11)

350ed...

it is not the holes.. the tilton could weigh 60 pounds and still perform better then the NISMO / JWT / etc... its because all of the rotational mass is on the inside of the flywheel...

(do this out side)

take a string and tie a few nuts on the other side of it... hold the string so it is 2 feet long.. and spin it so it goes in a circle... see how quickly and easly it willgo in a circle..

now... make it so that sring is 5 feet long.. more effort is put into spinning it around

WP Gaston

THIS stuff is why all you youngsters out there in Z land need to do your math homework & take physics. So you'll be a science geek and be able to appreciate the world at large to a greater degree & also so you can splain how machines work to people like ME. Ha! Thanks for the nifty string illustration...now, let's all take a "moment"...

350ed

iTrader: (17)

Jason, I understand the physics. I was just amazed about the weight different with same diameter on the Tilton. Then I looked at the picture comparisons and it made sense The weight is mostly on the inner inches since the outer inches is mostly holes!

adanande

What about crankshaft balance, won't a lighter flighwheel induce cranckshaft walk that will take the life of the engine? That doesn't seem very reliable to me? I myself had a comptech flywheel on my last car and i loved it but later when I was flywheel shopping for my z i stumbled upn the balance issue. I am concerned because of the vast difference between 16 pounds and 50 pounds. And how much does the exedy weigh? I really like how a car drives with a low inertia flywheel though.

Z1 Performance

iTrader: (564)

the engines are balanced internally, so a lightwheel will not affect it, unless the flywheel itself is not balanced.