Corner Weights
Thread Starter
Safety Car
Joined: May 2005
Posts: 3,520
Likes: 3
From: Redwood City CA
Corner Weights
My 2006 C6 Z51 with various modifications came in at 3239# with half a tank of gas. 867# LF, 831# RF, 757# LR, 784# RR. Add in 200# for me, shuffle things a little, and my final weights were 929# LF, 861# RF, 849# LR, 806# RR... 49.6% cross weight, 51.9% front, 51.6% left side.
Just curious how other folks typically have their weights end up. 861# per corner would be perfectly even for me at 3444#. At that weight if I could get 51% F, 49% R the fronts would end up 878# and the rears 844#.
For the record, I had stock bars and stock endlinks, with my weight and the bars connected: 936# LF, 849# RF, 835# LR, 820# RR. Disconnect the swaybars: 925# LF, 860# RF, 846# LR, 808# RR. I was pretty shocked by the weight change there. The bars were nice and free, shimmed as necessary, VBP poly bushings, but stock endlinks.
Just curious how other folks typically have their weights end up. 861# per corner would be perfectly even for me at 3444#. At that weight if I could get 51% F, 49% R the fronts would end up 878# and the rears 844#.
For the record, I had stock bars and stock endlinks, with my weight and the bars connected: 936# LF, 849# RF, 835# LR, 820# RR. Disconnect the swaybars: 925# LF, 860# RF, 846# LR, 808# RR. I was pretty shocked by the weight change there. The bars were nice and free, shimmed as necessary, VBP poly bushings, but stock endlinks.
Drifting
Joined: Nov 2000
Posts: 1,563
Likes: 31
From: scio or
My 01Z came in at 3400 with my fat ***, 1/2 tank fuel, and 75lb of ballast in the pax seat.
Unfortunately, I don't remember what the corner weights were, I should find another set of scales and do it again.
Unfortunately, I don't remember what the corner weights were, I should find another set of scales and do it again.
Burning Brakes
Joined: Oct 2002
Posts: 822
Likes: 0
From: Bay Area CA
St. Jude Donor '08-'09-'10
I had my 08Z weighed (no adjustments done) between sessions at Laguna - Full tank, me inside (188+cloths+wallet+helmet and stuff), R6s 315/18 - 345/18, Hotchkis sways connected, yellow top batteri.
Total 3375:
Front: 842/818 - 49.2%
Rear: 875/842 - 50.8%
Cross 50.1%
Never thought much about it as I haven't seen any comparisons.
/Nik
Total 3375:
Front: 842/818 - 49.2%
Rear: 875/842 - 50.8%
Cross 50.1%
Never thought much about it as I haven't seen any comparisons.
/Nik
Burning Brakes
Joined: Nov 2005
Posts: 1,161
Likes: 1
From: Chandler AZ
I had my 08Z weighed (no adjustments done) between sessions at Laguna - Full tank, me inside (188+cloths+wallet+helmet and stuff), R6s 315/18 - 345/18, Hotchkis sways connected, yellow top batteri.
Total 3375:
Front: 842/818 - 49.2%
Rear: 875/842 - 50.8%
Cross 50.1%
Never thought much about it as I haven't seen any comparisons.
/Nik
Total 3375:
Front: 842/818 - 49.2%
Rear: 875/842 - 50.8%
Cross 50.1%
Never thought much about it as I haven't seen any comparisons.
/Nik
Drifting
Joined: Jun 2000
Posts: 1,575
Likes: 98
From: Wawayanda NY
98 coupe with 3/4 gas, me in it (190 lbs.), coilovers adjusted, 295's front and 315's rear all on ccw's. steel DRM rollbar. corbeaus.
LF 888
RF 877
LR 847
RR 855
Total 3467
Front 50.89%
Cross 50.27%
Link to chassis setup sheet: http://209.177.55.37/images/c5images...06-04-2009.jpg
I just put z06 catback on and saved 18 lbs approx I think. Should lower overall weight to 3449.
LF 888
RF 877
LR 847
RR 855
Total 3467
Front 50.89%
Cross 50.27%
Link to chassis setup sheet: http://209.177.55.37/images/c5images...06-04-2009.jpg
I just put z06 catback on and saved 18 lbs approx I think. Should lower overall weight to 3449.
Last edited by 2MCHPWR; Aug 26, 2009 at 12:42 PM.
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Burning Brakes
Joined: Oct 2002
Posts: 822
Likes: 0
From: Bay Area CA
St. Jude Donor '08-'09-'10
Too late 
But a random sets of events lead up to this point, so it may still get back there.
Well, not really random; the guy that did the measuring said he rarely worked on vettes as they were very close from the factory. - He gave some horrible examples for other cars, but I don't recall which.
/Nik
But a random sets of events lead up to this point, so it may still get back there.
Well, not really random; the guy that did the measuring said he rarely worked on vettes as they were very close from the factory. - He gave some horrible examples for other cars, but I don't recall which.
/Nik
Le Mans Master
Joined: Apr 2001
Posts: 9,556
Likes: 288
From: Granbury Texas
I had my 08Z weighed (no adjustments done) between sessions at Laguna - Full tank, me inside (188+cloths+wallet+helmet and stuff), R6s 315/18 - 345/18, Hotchkis sways connected, yellow top batteri.
Total 3375:
Front: 842/818 - 49.2%
Rear: 875/842 - 50.8%
Cross 50.1%
Never thought much about it as I haven't seen any comparisons.
/Nik
Total 3375:
Front: 842/818 - 49.2%
Rear: 875/842 - 50.8%
Cross 50.1%
Never thought much about it as I haven't seen any comparisons.
/Nik
Burning Brakes
Joined: Oct 2002
Posts: 822
Likes: 0
From: Bay Area CA
St. Jude Donor '08-'09-'10
Racer
Joined: Dec 2006
Posts: 458
Likes: 0
From: Los Gatos CA
Just got my car weighed, 04 Z06 (with me at roughly 200 pound and full tank)
LF 915
RF 880
LR 857
RR 822
Cross 50.0%
Front 51.7%
Rear 48.3
Total 3474 ! Need to get some stuff out of the trunk
/Hakan
LF 915
RF 880
LR 857
RR 822
Cross 50.0%
Front 51.7%
Rear 48.3
Total 3474 ! Need to get some stuff out of the trunk
/Hakan
Burning Brakes
Joined: Oct 2002
Posts: 822
Likes: 0
From: Bay Area CA
St. Jude Donor '08-'09-'10
Got my car checked today with street tires, full tank and 185lbs dead weight. Now with coilovers.
- Car was not adjusted as difference was within acceptable variance. (Porsche specifies 40lbs as the limit for adjustment, GM doesn't have one?)
Total 3401
Front: 844 819 -
Rear: 895 843 -
Sum Side: 1739 1662 51.1%
Cross : 1714 1687 50.4%
While it looks like the car gained weight since last time, my street wheels are heavier (19/20 combo vs 18/18).
Track wheels are 212.5 and street wheels 247.8, so 35.3lbs more.
/Nik
- Car was not adjusted as difference was within acceptable variance. (Porsche specifies 40lbs as the limit for adjustment, GM doesn't have one?)
Total 3401
Front: 844 819 -
Rear: 895 843 -
Sum Side: 1739 1662 51.1%
Cross : 1714 1687 50.4%
While it looks like the car gained weight since last time, my street wheels are heavier (19/20 combo vs 18/18).
Track wheels are 212.5 and street wheels 247.8, so 35.3lbs more.
/Nik
Drifting
Joined: Oct 2005
Posts: 1,487
Likes: 4
From: WA
damn and I though i was heavy - 3350 with half a tank of gas, driver, oem c5z wheels. that's with a beefed up rollbar but before i switched to coilovers
cross distribution was very similar to Nimo's, I can't find exact numbers.
cross distribution was very similar to Nimo's, I can't find exact numbers.
Burning Brakes
Joined: Oct 2002
Posts: 822
Likes: 0
From: Bay Area CA
St. Jude Donor '08-'09-'10
3401 - 35.3 - 60 = 3305.
(full tank is 112.5, assuming 6.25 per gallon for 18gallons)
I think I may have added weight with my coilovers as the stock C6z springs were very light. Stoptech 15"/14" also added weight.
/Nik
Thread Starter
Safety Car
Joined: May 2005
Posts: 3,520
Likes: 3
From: Redwood City CA
Updated 2009/12/16 (06 C6 Z51, Wilwood SL6R front brakes w/ NAPA rotors, DRM coilover, HardbarUSA harness bar, CCW C140 18x10+18x11 w/ R888s, DRM/RD Radiator, Pfadt Original Comp swaybars, half tank of gas):
LF: 889 RF: 875
LR: 851 RR: 817
Total: 3432#
Front: 1764# (51.4%)
Left: 1740# (50.7%)
Cross: 1726# (50.3%)
LF: 889 RF: 875
LR: 851 RR: 817
Total: 3432#
Front: 1764# (51.4%)
Left: 1740# (50.7%)
Cross: 1726# (50.3%)
Last edited by gkmccready; Dec 18, 2009 at 12:21 PM. Reason: Add car info.
Melting Slicks
Joined: Dec 2004
Posts: 3,382
Likes: 250
For as well set-up and as light as my car is I should be faster. My T1 buddies would kill for these numbers. That's me in the car and with electric windows that still work and 1/4-1/3 tank of gas I forget now. Maybe my scales are broken?
Pro
Joined: Jan 2004
Posts: 621
Likes: 1
From: Healdsburg Ca
Here are my weights with my 2006 Z06 with coilovers, a 12 qt dry sump, 1/4 tank of gas, and my 200# fat ***.
LF - 856# RF - 827#
LR - 848# RR - 793#
Total - 3324#
Cross - 50.3% & 49.7%
Rear - 49.3% Front 50.7%
I have the Pfadt sways with adjustable heim links. Adjustable links are a must if you want a neutral setting for your suspension.
LF - 856# RF - 827#
LR - 848# RR - 793#
Total - 3324#
Cross - 50.3% & 49.7%
Rear - 49.3% Front 50.7%
I have the Pfadt sways with adjustable heim links. Adjustable links are a must if you want a neutral setting for your suspension.
