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Author Topic:   imca tire "stagger"
GRTWallbanger
Dirt Maniac

Total posts: 196
posted May 11, 2005 04:46 PM  
Are you guys that run the american racer tire getting any stagger.I got all i can do to get 2".We tried the clamped up set-up and like everybody said, it was TIGHT!!!!!I wish i had more stagger to help get the car in?One guy last year told me he had over 4 inches?I took all the angle out of the LR bars, the pull bar and the panard bar and had almost no LR bite, and it still was way tight..
P.S. RR is 1" longer wheelbase then Left

[This message has been edited by GRTWallbanger (edited May 11, 2005).]

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted May 11, 2005 04:53 PM  
trail the RR a little bit.

George Gilliland
Dirt Forum Racer

Total posts: 92
posted May 11, 2005 05:06 PM  
During the week I keep the right rear at 40 psi and the left rear at 5psi. Then on race day the right is 82.5" when well used and 83" when new. The left rear is 79.5". That is the best that I have been able to do with these tires in recent years. It used to be that they had a much wider variation when new, but that has not been so since they rounded the edges and got new molds.

Rat Trap
Dirt Maniac

Total posts: 129
posted May 11, 2005 05:29 PM  
The imca's are that much smaller than the hoosiers? Or can you get bigger imca tires? We are planning on running an imca track this year, but maybe not if there is that much difference. Our hoosiers we run are anywhere from 85 to 90.

xhubby
Dirt Freak

Total posts: 376
posted May 11, 2005 06:52 PM  
An 83" is about the biggest I've been able to get out of an IMCA tire. Most of the time, we have to pump them up, & lay them in the sun for a few days to get that.

hiredgun
Dirt Forum Racer

Total posts: 78
posted May 11, 2005 07:37 PM  
I have got 4 to 5 ,
Let one bake in the sun. or stick it front of
a heater .
The left I remove the stem , squeeze all the air out i can , put the stem back in and let it sit out in then cool night air.
Give it a try .

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted May 11, 2005 07:40 PM  
GRT,
You say 1" longer wheelbase on the RR. Is that measured off the frame or off the front end? If it were me I would square to the frame then trail it as needed from there.

It seems to me like you should be able to adjust something else to loosen the car getting in. Stagger will make the most difference in the middle.

So far this year we have been able to get 1-2" pretty easy, but honestly I think we have gotten along better with less than an inch. 1/2"-1" is usually pretty easy to get and seems to work if you adjust around it. Plus less stagger will help with straightline speed off the corner.



GRTWallbanger
Dirt Maniac

Total posts: 196
posted May 12, 2005 05:17 AM  
I squared the rear-end off the motor plate, then made the RR 1" longer.We have always had trouble getting this car to turn in.

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted May 12, 2005 06:11 AM  
what springs are you running?

GRTWallbanger
Dirt Maniac

Total posts: 196
posted May 12, 2005 08:09 AM  
800's in front (metric front end)225 on lr 200 on rr

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted May 12, 2005 08:19 AM  
Have you tried a stiffer RF like a 900RF along with the 800 LF. That should free it up gettin in. You could soften the LF as well but those seem soft for a metric front, but I am not real familiar with them.

autoshop
Dirt Freak

Total posts: 298
posted May 12, 2005 03:01 PM  
3" is the most I've gotten .84" being the biggest

jtno6
Dirt Forum Racer

Total posts: 87
posted May 12, 2005 04:21 PM  
i know a guy that runs in the top 3 every night and doesnt mess with stagger at all

George Gilliland
Dirt Forum Racer

Total posts: 92
posted May 12, 2005 05:05 PM  
I know a guy with a Dirt Works that only wants 0.5" of stagger and does very good. My car seems to handle better with as much stagger as I can get, especially when it is tacky.

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