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Author Topic:   zero forward bite on dry slick, please look
dirtracr
Dirt Maniac

Total posts: 199
posted July 04, 2005 09:16 PM  
dw8..four bar left, swing arm z on right
700 750 3050 3060
250 300 93 94
progressive pull bar spring 400-1000
bout 58 rear
51 cross 120#
53 left
rear z is 5 degrees down, forward swing arm middle hole..

left upper is fourth up, lower in bottom

this car zip forward bite and i consider myself to be smooth, 14 years of racing and i'm totally lost...thanks for any input

viper3244
Dirt Full Roller

Total posts: 57
posted July 04, 2005 09:47 PM  
Had the same problem with our DW8. I did alot of homework on the pullbar, and with the help of some guys on this sight it has gotten alot better. Check out the post I started "Pull Bar setup" I ended up moving the pull bar mount to the left made a considerable difference. We rum a big half mile. If your interested I can e-mail our current set-up. Good luck

irace74
Dirt Forum Racer

Total posts: 80
posted July 05, 2005 07:36 AM  
Go to the tool box on this website and recalculate your right rear spring rate for a swing arm. I think that you will need at least a 200# effective rate at the wheel so, depending on the swing arm you are using, the 300# spring may be too light. If it is a short swing arm, you may need a 350-400# RR spring. Remember that a stiffer spring will add sidebite to the car. In order to get the car up on the left rear, a stiffer spring may be necessary here too, if you are above 230# then a 225 # spring may be in order. Additionally a lower rear roll center by lowering the panhard bar on both sides will allow the car to transfer weight to the right side more quickly.

My feeling is that your forward bite issue is an issue related to one rear tire doing too much work and that there is a need to get both of them working together.

[This message has been edited by irace74 (edited July 05, 2005).]

DirtTrackRacingRules 3 8
Dirt Maniac

Total posts: 101
posted July 05, 2005 05:06 PM  
soften the rr spring. my car has a swing arm rr (rayburn style) and the car weights 2750 and i run a 275 spring. Im guessing your car is about 2450 so id go to a 250 to start. jmo

Camaro_Dude_1991
Dirt Maniac

Total posts: 104
posted July 10, 2005 08:09 AM  
DirtTrackRacingRules 3 8, where do you race just currious?

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