Can we have a weight bias thread?

[Mtrhd329]

1979 c10 5.3l,4l80e,10 bolt, all steel fenders, bumper, hood. With my 260# butt in it. Going to be stripping weight where i can.

[Yelcamino]

This should be an interesting before/after! Here's the weigh sheet on my El Camino before I started the LS swap. Going from a cast iron block / aluminum head BBC to an all aluminum LS3...



In addition to the LS3, I removed about 200 lbs or so of stereo components.

Anyone care to speculate on the final numbers?

[gator68428]

This should be an interesting before/after! Here's the weigh sheet on my El Camino before I started the LS swap. Going from a cast iron block / aluminum head BBC to an all aluminum LS3...

In addition to the LS3, I removed about 200 lbs or so of stereo components.

Anyone care to speculate on the final numbers?

3620 lbs
55% front
45% rear

[another69]

Late post, but just recently got a set of scales.
69 Camaro
LS3/TKO600
AME front / Speedtech torque arm rear

[another69]

[Lonnies Performance]

Since the thread is back from the dead, I'll post a few additional values.
I tried out my new Longacre scales...

68 Camaro RS/SS, 396 w/ iron heads, 4 speed, manual brakes & steering, no spare tire, 1/2 tank fuel.
3374 total, 1996F/1378R, 59/41%

91 Firebird, LS3/T56/S60 AC, PW, T-tops, no spare tire, 1/4 tank fuel
3420 total, 1930F/1490R, 56/44%

02 S10 Xtreme, 4.3 V6/5 speed, regular cab, full options, 1/2 tank fuel
3499 total, 2042F/1457R, 58/42%

[nokones]

I hope everyone realizes that if you're trying to balance your car to handle on an autocross or roadrace course, you need to weigh with the driver's weight and your car in race trim before you adjust your corners to achieve the 50% crossweight. Otherwise its meaningless without the driver's weight.

[holschen]

camaro 69
ls3 6l80e
2010camaro rear
with 80kg driver and full tank 112L
and without driver
in kg

[EvaaWilli]

Replaced some parts with carbon. And this is a completely different car. I plan to put all-wheel drive and the engine from the Audi.

[Bugzilla]

(These are rough numbers off the top of my head. Its been a while)

Lets see. My Evo is...

3150lb
60% F
40% R

My Bug is...

2100lb
40% F
60% R

Who needs 50/50 distribution!

[cpd004]

This is before a carbon hood and nose. A few other odds and ends are missing...headliner, rear interior panels, trunk carpet, etc.



71 Firebird Speedtech Xtreme, Ls3, 4L60E, factory 10 bolt, SFC's, Recaro's, mostly factory interior.

[Motobrewmaster]

I would like to know how my car weighs out. Does anyone have scales I could borough up here in New England? Specifically around the seacoast NH region.

[jamminj007]

Mine with full interior dynamat, closed cell foam, 4 point DSE cage and custom trunk enclosure. LS2 battery in the trunk

[67-LS1]

My 66 Chevelle is 3260 lbs with a full tank. F/R is 1760 lbs/1500 lbs so 54/46 bias.
All steel, battery in stock location, full Dynamat.
Without 122 lbs of fuel the weight would be 3138 lbs.

[Scott3106]

I have a 1985 Monte Carlo SS. Is it worth adding extra weight to the rear of the car to get a better front to rear weight bias or would it be counterproductive? Weight vs performance? I realize that the lower the better but I think you would have to add way to much at or in the frame like we did in nascar cars. I was thinking you may not have to add very much ballast if you added at the bumper.

[stab6902]

I have a 1985 Monte Carlo SS. Is it worth adding extra weight to the rear of the car to get a better front to rear weight bias or would it be counterproductive? Weight vs performance? I realize that the lower the better but I think you would have to add way to much at or in the frame like we did in nascar cars. I was thinking you may not have to add very much ballast if you added at the bumper.

Unless you're trying to meet the minimum weight of a specific race series, I'd advise against adding ballast. There are other, better ways to balance the car's handling if that's the issue.

[Rod]

I have a 1985 Monte Carlo SS. Is it worth adding extra weight to the rear of the car to get a better front to rear weight bias or would it be counterproductive? Weight vs performance? I realize that the lower the better but I think you would have to add way to much at or in the frame like we did in nascar cars. I was thinking you may not have to add very much ballast if you added at the bumper.

no is the simple answer... and no to placing the weight at the bumper.... any weight that far back creates a pendulum effect and make handling unpredictable



balance the car with components that help... add a cage and scale, reduce nose weight, fiberglass or carbon nose cap, hood, fenders, inner fenders, use aluminum heads, radiator, block, aluminum or tube core support, move comments that can be moved, battery, trans cooler, ect