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Author Topic:   Slider vs. Jacking Bolt
msnead
Dirt Forum Racer

Total posts: 77
posted July 19, 2005 07:51 AM  
On our DirtWorks 9 (purchased used) the LR is on a slider mounted behind the rear on the bird cage and the RR has the spring on top of the rear with a jacking bolt.

It appears that this car had been modified a little from when it left the DW shop because it has what appears to be a standard jacking bolt mount welded into the frame on the inside and then another one welded on the outside of the round-tube frame. (The 2nd one doesn't look as neatly done as the first which leads me to believe it wasn't standard.)

Looking at the car from the back, the spring appears to be sitting at a strange angle and doesn't appear to be compressing straight up and down. It almost appears that it is bending in the middle instead of compressing evenly. To me, it just doesn't look right.

To fix this, I've been thinking about going to a slider on the RR and mounting it in front of the rear end on the bird cage. Several people that I've asked at the track also feel this would be the way to go, but I would like your opinion also... Any suggestions?

There is one small detail that worries me... The front bird cage mount on the right side is directly in line with the "bars" for our 4-bar RR suspension. If I mount the slider on the bird cage, it will hit the bars. Has anyone ran into this problem before and if so, what can I do about it?

Thanks,

m

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted July 19, 2005 08:58 AM  
You will be fine with the Spring as it is on the RR. The springs are mounted like that so that when the car is up on the bars, that spring is straight up and down. I beleive that the DW-9's come with the spring mount on either side of the upper tail.

msnead
Dirt Forum Racer

Total posts: 77
posted July 19, 2005 09:01 PM  
Ok, I stand corrected... I thought the one on the right was an after-thought but you and DW say it isn't.

I did find something interesting out... The jacking bolt mount that I'm using is the one on the right of the round tube... From what DirtWorks tells me, that is for a 3-link suspension. The mount for the 4-link suspension is the one on the left side of the round tube. That explains why the spring seems to be binding and at the wrong angle...

Thanks for the reply Xtreme12x--do you run a DW 9 also? If so, what suspension do you run?

m

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted July 19, 2005 11:44 PM  
I don't personally Run Dirtworks cars, but I work on Hoffman cars regularly. Same principal

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