Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

LS7 clutch weight

Thread Tools
 
Search this Thread
 
Old 09-28-2009, 08:12 PM
  #1  
11 Second Club
Thread Starter
iTrader: (1)
 
FroDaddy's Avatar
 
Join Date: Sep 2004
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Default LS7 clutch weight

I have a LS7 clutch + new steel flywheel ready to be installed. It's replacing my Spec 3 with the stock flywheel. I've read the LS7 clutches are heavy, but seem to remember a friend telling me the Spec 3 was heavy back when I got it.

Anyone know what the weight difference is?
Old 09-29-2009, 08:17 AM
  #2  
FormerVendor
iTrader: (2)
 
SPEC-01's Avatar
 
Join Date: Feb 2007
Posts: 2,507
Likes: 0
Received 0 Likes on 0 Posts
Default

I am looking at boxed weights for both the standard LS7 and the Stage 3 and they both list 28-lbs as the shipping weight. I hope this info helps. Let me know if you have any further questions. Thanks,
Old 09-29-2009, 08:26 PM
  #3  
11 Second Club
Thread Starter
iTrader: (1)
 
FroDaddy's Avatar
 
Join Date: Sep 2004
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Default

Yes it does, thank you very much
Old 09-29-2009, 10:49 PM
  #4  
TECH Addict
iTrader: (8)
 
Ironxcross's Avatar
 
Join Date: Jun 2006
Posts: 2,063
Likes: 0
Received 1 Like on 1 Post
Default

makes it easier to launch
Old 09-30-2009, 07:38 AM
  #5  
12 Second Club
iTrader: (98)
 
99ssleeper's Avatar
 
Join Date: Oct 2002
Location: Minnesota
Posts: 2,036
Likes: 0
Received 2 Likes on 1 Post

Default

I just replaced a spec 3 with an LS7, the LS7 is heavier but I never weighed them. The total for the LS7 is about 58lbs. The engine seems to rev a little slower, or maybe its just my imagination, but the car is much nicer to drive with the LS7.


Originally Posted by Ironxcross
makes it easier to launch
Old 09-30-2009, 10:17 AM
  #6  
11 Second Club
Thread Starter
iTrader: (1)
 
FroDaddy's Avatar
 
Join Date: Sep 2004
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Default

99ssleeper did you buy the LS7/LS2 flywheel, and if so did you have the balance checked?
Old 09-30-2009, 10:42 AM
  #7  
12 Second Club
iTrader: (98)
 
99ssleeper's Avatar
 
Join Date: Oct 2002
Location: Minnesota
Posts: 2,036
Likes: 0
Received 2 Likes on 1 Post

Default

That is what I bought and no, I did not have the balance checked. They are balanced and ready to install.
Old 09-30-2009, 10:46 AM
  #8  
12 Second Club
iTrader: (98)
 
99ssleeper's Avatar
 
Join Date: Oct 2002
Location: Minnesota
Posts: 2,036
Likes: 0
Received 2 Likes on 1 Post

Default

I might be able to weigh the Spec setup today. Im interested to know what it is as well.
Old 09-30-2009, 11:12 AM
  #9  
TECH Veteran
iTrader: (31)
 
bjamick's Avatar
 
Join Date: May 2006
Location: Birmingham AL.
Posts: 4,218
Received 3 Likes on 3 Posts

Default

The flywheel is a heavy sum beach I tell you that much. The total ls7 kit, flywheel, pressure plate, and disc has to weigh a good 60lbs.
Old 09-30-2009, 11:41 AM
  #10  
11 Second Club
Thread Starter
iTrader: (1)
 
FroDaddy's Avatar
 
Join Date: Sep 2004
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the info 99ssleeper. I just put my LS7 assembly on a digital scale and it weighed 58.5lbs.
Old 10-01-2009, 02:47 PM
  #11  
TECH Junkie
iTrader: (28)
 
gnx7's Avatar
 
Join Date: Nov 2002
Location: San Francisco, CA
Posts: 3,461
Received 154 Likes on 101 Posts

Default

Get an aluminum flywheel and you'll be glad you did. Engine revs much faster. Shave off 20lbs....
Old 10-01-2009, 03:08 PM
  #12  
FormerVendor
iTrader: (2)
 
SPEC-01's Avatar
 
Join Date: Feb 2007
Posts: 2,507
Likes: 0
Received 0 Likes on 0 Posts
Default

The weight I provided were relative to the pressure-plate and disc (clutch kit) only! It seems that there are weights of the flywheels being included in so of the posts that followed so I wanted to clarify.



Quick Reply: LS7 clutch weight



All times are GMT -5. The time now is 11:42 PM.