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Author Topic:   set-up advice needed
66modracer
Dirt Newbie

Total posts: 1
posted August 06, 2005 10:13 AM  
Need some help guys. I have a 3 link springs on top, short panhard, and chevelle clip. 125# springs rear, lf is 500 and rf 550. Bilstein 3030's on rear, and lf 4545 rf 5555. Start the feature with 60% rear and 125# bite. Last year car was great, but this year, track has more banking and is a lot faster and more of a momentum track. I used to be more stop and go. Car is good until track drys out and then its very loose in and no sidebite. Rearend now bottoming out on underslung lr and rf bottoming out. Should I change both front and rear spring rates? Looks like I will have to put the long panhard bar back on. Car would be very week in the rear if I cut the underslung out I believe. Any help would be appreciated.

chickenlittle
Dirt Full Roller

Total posts: 63
posted August 06, 2005 03:17 PM  
Need to add about 100lbs of rate in front and about 50 75 lbs in rear springs. Need to move weight up high so it will roll over on the right side to give you more side bite. Also need to raise rear roll center by mounting the panhard bar up higher. This will help the car roll over more to get sidebite on a dry track.

gould
Dirt Forum Champ
Total posts: 730
posted August 06, 2005 04:21 PM  
i thought lowering the rear roll center got the car to roll more??? increasing panhard angle will give more side bite. your springs are a little light. i run 700lf 800rf 225lr 200rr. 80lbs lr bite.

FlyNLoIMCA17
Dirt Forum Champ
Total posts: 753
posted August 06, 2005 07:03 PM  
yes, lowering the R/C makes more roll, due to increasing the length of the moment arm. ie. more leverage.

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