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Author Topic:   4BAR /SWING ARM welbase
Dirt Roller

Total posts: 5
posted August 10, 2005 03:11 PM  
run a 4br left and swing arm right it wants to drive to the walls on the straits i always have ran alot longer wheel base on left is this a poroblem

Dirt Forum Champ
Total posts: 753
posted August 10, 2005 07:14 PM  
first off there really isn't enough info to CORRECTLY diagnose your problem. But from what your saying, are you meaning that the Right side wheelbase is longer than the left side wheelbase?? Which would be trailing the RR or leading the LR. If so then yes that can make the car push off the corners. If thats not what u meant then please provide more info.

Dirt Roller

Total posts: 5
posted August 16, 2005 12:56 PM  
left side is 1 1/2 inch longer wheelbase than right

Dirt Forum Champ
Total posts: 796
posted August 16, 2005 01:18 PM  
Its more of a drive issue than anything. The LR tire is driving FWD alot harder than the RR. That makes the car wanna go towards the wall.

Rear steer can do the same thing i would guess. Thou trailing the LR 1.5" behind the RR would be something of a last ditch effort for me to get rid of it.

One thing that can help is pulling the pull-bar over towards the RR tire some.

Dirt Forum Champ
Total posts: 505
posted August 16, 2005 01:34 PM  
Leading the rr by 1 1/2" will definately make the car push. I consider anything over 1/2" lead/trail to be excessive and a sign of other problems.

DirtTrackRacingRules 3 8
Dirt Maniac

Total posts: 101
posted August 16, 2005 06:16 PM  
I would not want a longer wheelbase on the left. You might have to much rear steer if the tail is dog walking really bad. Had a car that did that put negative 20lbs of bite still didnt fix it so we put it on the jig and the front end was beyond fixing, needed a new stub so just got another car. It might be the front is not steering the car. JMO

Dirt Maniac

Total posts: 102
posted August 24, 2005 01:18 PM  
wouldnt more angle on the rr swingarm correct the drive concern...we can deal with corner exit and entry later...

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