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Author Topic:   RF Spring?
Alltel
Dirt Maniac

Total posts: 180
posted June 04, 2005 10:04 PM  
The car will not turn unless it us up on the bars rear-steering. This makes it fast in the heat, but stink when the track dries out and I have to slow down getting off the bars or when I have someone in front of me. I tried adding some lead up high in the car to get it to roll over, but it only tightened the car up more. I have several ideas to throw out and see what you think in order to free up corner entry.

LF 750 RF 800
LR 200 RR 125
4-z big chevelle clip.

The RF spring is moving about 5-6" while the RR only moves about three. Instead of the car rolling over on the RR and carrying the LF, it lays over on the RF. Would a stiffer spring on the RF free me up so I could turn the car going into the corner?

I thought about an easy up shock on the LR and a tie down on the RR to help keep the car up on the bars, but I think the car should be able to be steered with the front and not have to rely on a ton of rear steer. Correct or not?

I could stiffen the RR spring, but I'm not certain what effect this would have since the car really isn't rolling over on the RR now. I also thought about stiffening the LR to keep wedge in the car.

Any other suggestions? Please help, I've tried ever bar adjustment I could think of without any help.


WPP
Dirt Freak

Total posts: 451
posted June 05, 2005 08:06 AM  
To me your running a soft rr spring and most of your weight tranfer is going to the stiff rf .I would stiffen the rr to a 200 at least and how much angle do you have on your 4-bar on the upper.

dirtslinger66
Dirt Maniac

Total posts: 200
posted June 05, 2005 10:52 AM  
I agree the rr is very light we run 225 lr and 200 rr in ours

rpm20
Dirt Freak

Total posts: 338
posted June 05, 2005 11:01 AM  
we have a chevelle clip on a dw8 chassis and i think your rf is too stiff and rr is too soft , that causes all the weight transfer to happen at right front and makes the car tight going in and through,
last season we had the same issue , we had a rf that was at 900 and a rr that was about 140.

this season we changed to 550 lf 650 rf 200 lr behind and a 170 rr in front and the car is a ton better, also , watch your ride heights we run 5, 5-1/2' front and 6 , 6-1/2" rear.
i would try that first and then fine tune with shocks. get it close first.

[This message has been edited by rpm20 (edited June 05, 2005).]

wfoondirt
Dirt Forum Champ
Total posts: 505
posted June 06, 2005 07:23 AM  
My first thought would be to check you front roll center, 6" is alot of travel for that big of rf spring. My next thought would be to stiffen both rear springs.

rpm20
Dirt Freak

Total posts: 338
posted June 06, 2005 10:54 AM  
i agree , we had minus 1" roll center and 19" to the pass side last year and we bottomed out stuff on the rf.

i re did the roll center to be near center and 3" off the ground and the car just came alive and it doesnt roll onto the rf so hard any more at all, we only get 2.5" of shock travel with a 650 spring now.

quote:
Originally posted by wfoondirt:
My first thought would be to check you front roll center, 6" is alot of travel for that big of rf spring. My next thought would be to stiffen both rear springs.


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