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Author Topic:   ??? for Sleepy
redneck racing
Dirt Freak

Total posts: 276
posted April 14, 2002 04:49 PM
Ive been surfing this site and have found ton of great info, icame across something you posted on springs i think its from the nova correct me if im wrong.
900#-950# lf
1100#-1200# rf
250# lr
My question is that if i read it right, why would you put the 200# leaf spring on the rr and not the 250# wouldnt you want the heavier one on the rr? thanks Eddie
Looking forward to more of your articles.

Dirt Freak

Total posts: 458
posted April 14, 2002 08:58 PM
I can't answer for sleepy, But I will say the almost all cars run a stiffer left rear spring. That is what gives the car forward bite off the corner. One a high bank track, or if the rear roll center is too far off you run springs of the same rate on both side. If you run a NORMAL track and run a stiffer right rear the car has some built in problems that you are trying to cover up with spring rates.

redneck racing
Dirt Freak

Total posts: 276
posted April 14, 2002 10:13 PM
Thanks Jeff, my application would be a 4/10 mile high bank dirt track that seems to slick up by the feature what would be a good spring rate for my 73 nova? Eddie

Dirt Maniac

Total posts: 199
posted April 14, 2002 10:27 PM
Hi redneck racing, awkwardjeff has it right. My example was for a metric car, 108" amd 3200 lb on the track. A stiffer left rear, which is part of the cross weight, helps plant the lr on corner entry. This helps braking also. Once the corner attitude changes from deceleration AND turning back to acceleration, the stronger left spring allows weight to shift to the rr The rr will begin to dominate the lr as the straight is entered.

As we all know by know books can and have been written opn this and related subjects and their conclusions are varied. Please take the above as a simple answer in a small space. I set up my cars with 25 to 50 pound heavier spring on the left rear. It works for me. SLEEPY

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