robertbartsch

I unpacked the LS7 clutch this weekend and it is going in the car today.

The one thing I noticed is the LS2 flywheel and pressure plate weigh a frek'n TON!!!!

OK, so it is more stout than an LS1 clutch because it is designed to hold 500HP, but this seems rediculous.

What was the thinking behind using this much weight on a rotating assembly?

Are there any down-sides to the additional weight like taking more time to rev?

djsanchez2

iTrader: (14)

I believe it was smoothness. The heavier Flywheel will ease the car out from a stop better.

Don't know if there are any benefits or downsides to the engine revving slower as a result of the heavier FW.

I noticed that mine was heavy as hell too. I weighed all 3 peices together but forgot what it come out to.

robertbartsch

Wow, I suppose they are at least 1/3 heavier than the stock ls1 clutch.

Ace$nyper

iTrader: (8)

From what i've read the clutch is a few lbs more and the fly is 10 lbs more, you can semi counter act this by running a light LS2 fly wheel.

That's what i'll be doing when I unlazy and install my setup.

SS101

iTrader: (2)

a heavy rotating mass will store more potential energy which when converted into kinetic energy (when the clutch is let out) helps get a heavier car off the line faster.

Z28/2002

iTrader: (27)

If I remember correctly the shipping weight on mine was 63 lbs

JonB

iTrader: (3)

The ls7 is 8lbs more for the whole assembly

Stock LS1 (2004 GTO) - 49lbs
Stock LS7 (2006 Z06) - 57lbs

Just the flywheels

ls1-24lbs
ls7-26.5 Lbs

Theres only a 2.5lbs difference in the flywheels the rest is the pressure plate/clutch.

BIG_MIKE2005

iTrader: (116)

Why does everyone always make it a big deal that it weighs a few extra pounds?? You obvisously not building a race car if your throwin a LS7 clutch kit at it, so the extra couple pounds won't even matter.

I honestly didn't even notice a difference in how fast it revs after mine got installed. I did however notice how much smoother it shifted with the extra couple pounds on the flywheel. I also picked up some E.T. & MPH at the track. So obvisously it isn't a weight issue.

I wouldn't run a lightened flywheel unless I was in a car with weight reduction & that was in a race only application. Your gonna enjoy the extra mass on the streets. Like stated above it helps with full weight cars, which is what this clutch is designed for.

TORCHD 02 TA

iTrader: (39)

took the words right outta my mouth

thecorrectformula

I love my LS7 clutch. It's so much smoother than the stock set up and it grips like a mother.

95 Z28

iTrader: (21)

All I know is if that LS7 clutch kit can hold my 450-475ish rwhp then I will be extremely happy with it.

SladeX

It's a night and day difference between the LS7 clutch and the stock LS1. My LS1 wouldn't even hold stock power well, I'd floor it and instead of wheel spin I'd get something like a puke coaster where it'd accelerate and slip, accelerate and slip... did it for 1st 2nd, and eventually 3rd gear as well.

The LS7 has survived 4krpm clutch drops with a combination of hot laps. Getting off the line is easier both in burn outs and simple stop light take offs.

kozak

iTrader: (2)

I like my LS7, i can tell the difference between the stock and ls7 as far as slower revving is concerned but you get used to it. And i agree that it is easier to get going from a stop, all i do is let my clutch out almost exactly 1/2 way and the car starts moving at a normal street driving acceleration. and it has never slipped on even with shitty stop and go traffic, it has taken a lot of abuse.

Hugger Z

iTrader: (4)

Mine is surviving just fine with 508rwhp. You should be happy.