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Author Topic:   Rear stear
showtime13
Dirt Full Roller

Total posts: 60
posted July 12, 2005 06:51 PM  
I've gotten a few different opinions on this in the pits so I thought I would ask on here.
I have a 4 bar car that I run unclamped LR behind and the rear end is squared up. top bars are 18 inches and the bottom bars are 15 inches. the the question is ....when i come off the turns the car wants to hang out and drive off the top so i have been draging the breakes a little to help keep the car straighter. We have very good forward bite but I just cant seem to get throught the turns fast enough and drive off the turns straight. would lenthing the RR bars help or shorting the left side???
I see eveyone else that runs a bar car where there LR tire tucks in behind the drivers door but mine doesnt do that as much. I guess I just need to get the car to drive off the turns straighter....confussed

any help would be appreciated thanks

GO 24
Dirt Freak

Total posts: 366
posted July 13, 2005 07:06 AM  
Go to this site: www.jimmyjudd.com click on tech, then click on 4/bar, it's an excellant article and may answer some of your questions.

bizkit
Dirt Maniac

Total posts: 139
posted July 13, 2005 08:27 AM  
too much LS%

showtime13
Dirt Full Roller

Total posts: 60
posted July 13, 2005 03:40 PM  
quote:
Originally posted by bizkit:
too much LS%

are u saying i may have too much wedge?

showtime13
Dirt Full Roller

Total posts: 60
posted July 13, 2005 03:42 PM  
quote:
Originally posted by GO 24:
Go to this site: www.jimmyjudd.com click on tech, then click on 4/bar, it's an excellant article and may answer some of your questions.

Thanks for the site it does explain alot about 4 link

bizkit
Dirt Maniac

Total posts: 139
posted July 14, 2005 06:17 AM  
quote:
Originally posted by showtime13:
are u saying i may have too much wedge?


Nope I'm saying you left side of the car weighs too much and causing a drift. You stated you had good forward traction, but the car is walking to the wall and that your left rear isn't coming up under you the way the others are. So that tells me the left side of the car compared to the right side weighs too much. The rear steer can cause your car to walk out like your talking about, but rear steer will actully make the left rear climb up on the bars more, so thats why I don't think its a rear steer problem.

showtime13
Dirt Full Roller

Total posts: 60
posted July 14, 2005 05:14 PM  
quote:
Originally posted by bizkit:

Nope I'm saying you left side of the car weighs too much and causing a drift. You stated you had good forward traction, but the car is walking to the wall and that your left rear isn't coming up under you the way the others are. So that tells me the left side of the car compared to the right side weighs too much. The rear steer can cause your car to walk out like your talking about, but rear steer will actully make the left rear climb up on the bars more, so thats why I don't think its a rear steer problem.

THANKS! bizkit! I'll look into this and put it on the scales

showtime13
Dirt Full Roller

Total posts: 60
posted July 14, 2005 05:23 PM  
any idea on how to do this without taking away foward bite. If I could get this car to come off the turns straighter ....I would be the fastest car on the track.

showtime13
Dirt Full Roller

Total posts: 60
posted July 14, 2005 05:32 PM  
If I move the rr back a quarter and the lr forward a quarter...would it make things worse or better. One guy at the track said it sounds like to him that i might have to much wedge in the car but by moving the rr back might loosing me up enough to make it work. what do you think? maybe take the rr back and take out some wegde? like 20lbs or so?

bizkit
Dirt Maniac

Total posts: 139
posted July 15, 2005 05:12 AM  
Unless the car is pushing the front end up the track, its not wedge, if you put more steer in the car its going to drive the *** end more up to the wall. The way I read your description, I believe its too much LS%. I do not think you have a rear steer problem or a wedge problem. But you can fix it however you think is best!! Personally I would keep the same wedge and lower the LS% to 53.5 to 54%, Also add more rebound to your right rear shock

BMOORE8617
Dirt Newbie

Total posts: 4
posted July 26, 2005 02:19 AM  
I have to agree with Bizkit also it sounds like you have to much rear % if you do it will give you all that bite but comin out of the corners it will sling the rear end out if you dont drive it straight off how much rear % are you running

racer68
Dirt Roller

Total posts: 7
posted August 01, 2005 05:34 AM  
U could also try raising the J-bar mount on the frame. Get more body roll plants right rear tire and you get up on the bars quicker.

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