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Author Topic:   rear percentage problem?
Dirt Maniac

Total posts: 197
posted July 23, 2002 11:12 AM
Im tring to get the rear percent up on my car and when I add weight, lets say 100 lbs. to the LR as far back as I can, The weight all goes to the front(like 80-90lbs of it).
LF 800 RF 778
LR 712 RR 630
46% rear, 51.7%left and 51% cross. 2920 total. LF 1000 RF 1000 LR225 RR200
My rear springs are on the soft side, I need the roll for the rear steer im getting. (GM coil car). 4" of travel in RR 3" on LR
I hate to add more weight if its not geting the rear % up.. Could the soft springs in the rear combined with the even rate in the front just not be taking the weight on the scales.
Any Ideas?

Dirt Full Roller

Total posts: 37
posted July 23, 2002 08:53 PM
Widebody what are you're ride heights.Do you have weight jacks on your car?The jacks will move the diagonally(RF TO LR).Try to keep your weight in front of the rear axle.BY adding ballast this should raise your rear%.

Dirt Full Roller

Total posts: 69
posted July 24, 2002 06:05 AM
Describe as far back as I can. Does that mean on the rear bumper? That's where it should go and there is no way it will not increase rear percentage.

Dirt Maniac

Total posts: 197
posted July 24, 2002 09:49 AM
Car has weight jacks. Ride Heights are RF 8.5" LF 8" LR 9" RR 9.5" Tires are 90" Hosiers, Track is a low banked 1/2 mile momentum track so the little extra weight doesnt bother me. Min weight is 3100. My front lower arm angles are 5* down to the chassis and want to leave them there, I make all adjustments in the rear.

"As far back as I can" IS the rear bumper. The problems is my rear bumper is only 28" from the centerline of my rear diff. My car is a full size metric coil with 116"WB and to help with extra WB in trafic I shortened up the rear over hang, So putting weight on the rear bumper is not that far away from the rear axle.
Ill rescale the car tomorrow, IT's on blocks getting painted.

Thanks for the input

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