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Author Topic:   metric asphalt rear spring question
Dirt Roller

Total posts: 23
posted July 12, 2004 07:07 AM  
1/3 mile 15* banked oval. We are a top 5 car but need a little more bite off the corners. Our features are 20 laps and we waste too many getting by slower cars when starting back in the features Currently running 200 RR and 175 LR springs. Weve tried many things to increase bite over the last season or so and we feel that we have this chassis optimised with its current set up. We have tried 225 rr and 200 lr as well as swapping the rear springs. We are already 100lbs over minimum weight and have about 44.5% rear. Weve tried increasing cross weight (currently about 52.5%) which made the car really tight in/loose off and also made it difficult to drive in traffic

My question is: If we drop to 175 RR and 150 LR, should we add more cross weight at the same time? We get 2 practice sessions plus the heat race, Id like to start out with a good baseline from the shop, rather than wasting a practice. I figure the softer rear springs will tighten the car up so more cross will help. Comments/questions?

Dirt Maniac

Total posts: 157
posted July 12, 2004 05:19 PM  

i ran a track much like yours, during a winter break and won 7 out of 7 races. try to get more rear weight. I ran 200lbs. heavy and the car was fast. more cross wont hurt and don't be scared to run more stagger I ran up to 3 1/2" 200LR and 175 RR. good luck


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