Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Cold Air Inductions
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V6 LLT Engine, Exhaust, and Bolt-Ons


Reply
 
Thread Tools
Old 12-28-2012, 05:27 AM   #43
rtcat600man
having FUN now 13.66@101
 
rtcat600man's Avatar
 
Drives: 2010 2LT IOM
Join Date: Nov 2009
Location: Clarkston, Michigan
Posts: 8,966
Quote:
Originally Posted by ChadG View Post
I was just thinking back of the envelope calculations where 1 pound of unsprung rotational mass = 10 pounds weight reduction. (If someone has a better number please chime in)

The 18" TSW and Forgestar F14's are about 18.5 pounds a piece, which is a 14.4 lb weight savings per wheel. So a total of 57.6 pounds of unsprung rotational mass (assuming you go with the same tires) would be worth ~570 lbs of weight loss? That seems unreal, but if that number is correct you'd definitely feel it I would think.
I have heard that rotational mass is somewhere bewteen 4 and 10 lbs stationary mass. This would put that number for your weight drop on the wheels between 230 to 580 lbs. Probably much closer to the lower end. For sure something you will notice when accelerating.
__________________
rtcat600man is offline   Reply With Quote
Old 12-28-2012, 10:57 AM   #44
KMPrenger


 
KMPrenger's Avatar
 
Drives: 16 SS Camaro, 06 Colorado
Join Date: May 2009
Location: Jefferson City, Missouri
Posts: 12,129
Quote:
Originally Posted by ChadG View Post
I was just thinking back of the envelope calculations where 1 pound of unsprung rotational mass = 10 pounds weight reduction. (If someone has a better number please chime in)

The 18" TSW and Forgestar F14's are about 18.5 pounds a piece, which is a 14.4 lb weight savings per wheel. So a total of 57.6 pounds of unsprung rotational mass (assuming you go with the same tires) would be worth ~570 lbs of weight loss? That seems unreal, but if that number is correct you'd definitely feel it I would think.
I just read recently, that the 1lb of rotating mass equalling 10lbs of sprung mass is not the norm. Possible yes, but not the norm. I can't remember the explaination given unfortunently.

In our case, its probably on the low end, and so losing 57lbs of unsprung weight is probably more like 2 - 4 times that amount in sprung weight, so 100 - 200 lbs I'd guess.

Even so, that is a FANTASTIC weight loss to unsprung weight. I'd be extremely happy.
__________________
2016 Camaro 1SS - 8-speed - NPP - Black bowties
2010 Camaro 1LT V6 (Sold. I will miss her!)
KMPrenger is offline   Reply With Quote
Old 12-29-2012, 08:34 PM   #45
'11CamaroLS
 
'11CamaroLS's Avatar
 
Drives: 2011 Camaro LS
Join Date: Feb 2011
Location: Las Vegas, NV
Posts: 475
Quote:
Originally Posted by ChadG View Post
That's what I wanted to hear! Really hoping to be able to pull of the upgrade soon, those heavy steelies are killing me.
dropping the steelies is one of my favorite mods lol, looks so much better and the 44 lbs i dropped made a big difference in driving feel. car feels more nimble and spins the tires easier now.
'11CamaroLS is offline   Reply With Quote
Old 12-29-2012, 09:21 PM   #46
OOLIE

 
OOLIE's Avatar
 
Drives: 2011 LS
Join Date: Oct 2010
Location: FL
Posts: 1,644
Quote:
Originally Posted by '11CamaroLS View Post
dropping the steelies is one of my favorite mods lol, looks so much better and the 44 lbs i dropped made a big difference in driving feel. car feels more nimble and spins the tires easier now.
Amen! Also KMP post on weight is a great post to show how weight affects on dyno. Also overall tire diameter as stated in poor man gear change will add as well. This may have been already stated but I got behind on this thread and didn't read all.
__________________
OOLIE is offline   Reply With Quote
Old 12-30-2012, 11:04 PM   #47
camaro2lt
 
camaro2lt's Avatar
 
Drives: 2010 Camaro 2LT VR/RS CGM Rally's
Join Date: May 2009
Location: Palmyra, PA
Posts: 5,571
rs headlights weigh 10lbs each
__________________
camaro2lt is offline   Reply With Quote
Old 01-01-2013, 09:20 PM   #48
camaro2lt
 
camaro2lt's Avatar
 
Drives: 2010 Camaro 2LT VR/RS CGM Rally's
Join Date: May 2009
Location: Palmyra, PA
Posts: 5,571
weighed and took out the washer fluid resivor today it weighed 12lbs filled!
__________________
camaro2lt is offline   Reply With Quote
Old 01-08-2013, 10:27 PM   #49
horizon670

 
horizon670's Avatar
 
Drives: 2010 Chevy Camaro 2LT / RS / Auto
Join Date: Jan 2010
Location: Rutherford, NJ
Posts: 847
Quote:
Originally Posted by KMPrenger View Post
I just read recently, that the 1lb of rotating mass equalling 10lbs of sprung mass is not the norm. Possible yes, but not the norm. I can't remember the explaination given unfortunently.

In our case, its probably on the low end, and so losing 57lbs of unsprung weight is probably more like 2 - 4 times that amount in sprung weight, so 100 - 200 lbs I'd guess.

Even so, that is a FANTASTIC weight loss to unsprung weight. I'd be extremely happy.

To be able to calculate the equivalent chassis weight of a specific value of Rotational Mass, you will need to compute the following:
  1. The car's weight
  2. The Time it takes to reach a certain speed ( 0-60mph)
Camaro V6 2LT (3751 lbs) (0-60mph: 6s)
40 lbs of (Wheel/Tire saving) = 255 lbs of chassis weight

Camaro V8 2SS (3935 lbs) (0-60mph: 4.7s)
40 lbs of (Wheel/Tire saving) = 233 lbs of chassis weight

Hope this helps
horizon670 is offline   Reply With Quote
Old 01-14-2013, 04:02 PM   #50
BaylorCamaro
Track > 1/4 Mile
 
BaylorCamaro's Avatar
 
Drives: 2016 C7 Z51
Join Date: Sep 2009
Location: League City, TX
Posts: 6,046
Updated.
__________________
BaylorCamaro is offline   Reply With Quote
Old 01-26-2013, 03:08 AM   #51
lscamaro


 
lscamaro's Avatar
 
Drives: 2011 CGM Camaro LS A6
Join Date: Jan 2011
Location: San Antonio, Texas
Posts: 10,310
Nobody knows the weight of the v6 rotors?
__________________

Click Picture for Build Thread
lscamaro is offline   Reply With Quote
Old 01-26-2013, 09:02 AM   #52
kjkjr27
COTW 9/16/13
 
kjkjr27's Avatar
 
Drives: 2011 2LT/RS Camaro IOM
Join Date: Jan 2012
Location: Syracuse
Posts: 10,072
Quote:
Originally Posted by lscamaro View Post
Nobody knows the weight of the v6 rotors?
I wish someone did, because I am trying to find some light weight drilled/slotted rotors or depending how how drastic the weight diff is between the ss brake system, upgrading.
__________________
kjkjr27 is offline   Reply With Quote
Old 01-26-2013, 09:53 AM   #53
rtcat600man
having FUN now 13.66@101
 
rtcat600man's Avatar
 
Drives: 2010 2LT IOM
Join Date: Nov 2009
Location: Clarkston, Michigan
Posts: 8,966
Quote:
Originally Posted by lscamaro View Post
Nobody knows the weight of the v6 rotors?
Quote:
Originally Posted by kjkjr27 View Post
I wish someone did, because I am trying to find some light weight drilled/slotted rotors or depending how how drastic the weight diff is between the ss brake system, upgrading.


The forum search button is our FRIEND.

Type in rotor weight. two finds come up

http://www.camaro5.com/forums/showth...t=rotor+weight

See post 2 and 3 for SS rear rotor weight and V6 rear rotor weight.

SS is 24 lbs.

V6 is 17.3 lbs.

See post 5 for front rotor weight for both.

SS front rotor: 25.2 lbs.

V-6 front rotor: 22.0 lbs.


Hope this helps you guys out.

__________________
rtcat600man is offline   Reply With Quote
Old 01-26-2013, 10:15 AM   #54
kjkjr27
COTW 9/16/13
 
kjkjr27's Avatar
 
Drives: 2011 2LT/RS Camaro IOM
Join Date: Jan 2012
Location: Syracuse
Posts: 10,072
Quote:
Originally Posted by rtcat600man View Post
The forum search button is our FRIEND.

Type in rotor weight. two finds come up

http://www.camaro5.com/forums/showth...t=rotor+weight

See post 2 and 3 for SS rear rotor weight and V6 rear rotor weight.

SS is 24 lbs.

V6 is 17.3 lbs.

See post 5 for front rotor weight for both.

SS front rotor: 25.2 lbs.

V-6 front rotor: 22.0 lbs.

Hope this helps you guys out.

O yea I remember coming across that thread a like a couple months ago but forgot about it . Thanks! ...now its time to do some searching seeing if I can find some lighter aftermarket rotors.
__________________
kjkjr27 is offline   Reply With Quote
Old 01-26-2013, 10:21 AM   #55
rtcat600man
having FUN now 13.66@101
 
rtcat600man's Avatar
 
Drives: 2010 2LT IOM
Join Date: Nov 2009
Location: Clarkston, Michigan
Posts: 8,966
Quote:
Originally Posted by kjkjr27 View Post
O yea I remember coming across that thread a like a couple months ago but forgot about it . Thanks! ...now its time to do some searching seeing if I can find some lighter aftermarket rotors.

Let us know what you come accross, rotors and pads are on my list to replace in the next 12 months. especially if lighter.
__________________
rtcat600man is offline   Reply With Quote
Old 01-26-2013, 10:27 AM   #56
kjkjr27
COTW 9/16/13
 
kjkjr27's Avatar
 
Drives: 2011 2LT/RS Camaro IOM
Join Date: Jan 2012
Location: Syracuse
Posts: 10,072
Quote:
Originally Posted by rtcat600man View Post
Let us know what you come accross, rotors and pads are on my list to replace in the next 12 months. especially if lighter.
Same here, and will do
__________________
kjkjr27 is offline   Reply With Quote
 
Reply

Tags
light weight, weight loss, weight reduction

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 08:06 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.