When changing clutches....
Thread Starter
Drifting
Joined: Sep 2008
Posts: 1,630
Likes: 3
From: Aiea Hi.
When changing clutches....
what are the pros and cons of upgrading to the lightweight flywheel?
With 650 WHP S/C'd on and 05 Z51 what are the benefits/drawbacks?
Inquiring minds want to know....
Thanks fellas!
With 650 WHP S/C'd on and 05 Z51 what are the benefits/drawbacks?
Inquiring minds want to know....
Thanks fellas!
Burning Brakes
Joined: Oct 2005
Posts: 791
Likes: 2
From: Stafford Virginia
The light weight flywheel has a lot less inertia behind it due to less weight being spun so when you take off from a dead stop you feel the motor pull down harder than you would if you had a steel flywheel. With you having a S/C, it shouldn't be a big issue though. When I did mine, I also went to a full race Z06 tranny that also has a lot taller 1st gear in it than my old Z51 tranny did, that coupled with the big cam I have makes taking off a little tricky...
On the upside, you'll notice a big increase in how fast it revs and how fast the rpms drop between gears allowing you to shift a lot faster!
On the upside, you'll notice a big increase in how fast it revs and how fast the rpms drop between gears allowing you to shift a lot faster!
Safety Car
Joined: May 2000
Posts: 4,811
Likes: 344
From: Albuquerque NM
It also frees up some Horsepower that was being used to spin that heavy flywheel. But, at the dragstrip you need to rev up a little higher for the launch, to make up for the loss of stored rotational energy.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Safety Car
Joined: Nov 2007
Posts: 4,537
Likes: 1,402
From: Bethesda MD
I put one in my Ls1. I noticed around town, the car felt more responsive as it revved a bit quicker, but I had to adjust my launch. I found that I would launch the car using a couple hundred more rpms than when I had a steel flywheel. Alternatively if I launched at lower rpm, I had to give it more throttle.
Le Mans Master
Joined: Oct 2007
Posts: 6,149
Likes: 11
From: Greater Detroit Metro MI, when I'm not travelling.
I've always been a big fan of lighter flywheels. I've got a Cro-moly one now from Monster and it made a big difference in throttle response; the car basically feels like it lost a lot more weight than the 14 lbs or so from the flywheel would lead you to believe.
Since the revs jump up faster, rev matching is a lot easier too..
Since the revs jump up faster, rev matching is a lot easier too..
