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Author Topic:   Panhard /Spring Bar
dbradley
Dirt Freak

Total posts: 251
posted March 04, 2005 06:38 PM  
How much do you guys use these as set-up tools when the track is tacky and do you frequently change Spring bar compression and adjust the panhard as you plan for the track to go dry slick for the feature....Our track is always a pretty tacky 1/4 mile flat for the heats..Then is mighty dry and slick by 3/4 through the feature....Would like to get our set up to come in late...New to torsion cars/...could never keep a good dry slick set up with our coil car...would end up loose off late..Very warm right rear
Thanks
D

racerwilson
Dirt Freak

Total posts: 357
posted March 07, 2005 06:42 AM  
dbradley I run a Shadow adjustible spring bar with a 750 lb spring. That allows me to adjust the car while I race. It has 1" of adjustment allowing you to lock up that spring bar for heavy/tacky tracks and open it up for dry/slick. Panhard bar up for tacky and down for slick. I start with the spring bar first. Can you run anything ajustible?

dbradley
Dirt Freak

Total posts: 251
posted March 08, 2005 06:55 AM  
Thanks Racer,
We can only run the adjustable panhard system...The spring bar adjustment makes more sence though....
D

racerwilson
Dirt Freak

Total posts: 357
posted March 08, 2005 02:16 PM  
Will they allow you to run the adjustible spring bar if you mount the adjuster behind the driver on the rear deck? I have afew guys running them that way. It is in the gray area but makes it non cockpit adjustible. Makes for easy adjustments between races. Same with our Shadow torsion bar adjuster.

dbradley
Dirt Freak

Total posts: 251
posted March 09, 2005 10:22 AM  
Yeah we could run it that way as long as it isn't from the cockpit....How would you adjust it...have it compressed initially then let it out at the track goes slick....I'm wondering how much to let out the spring at the start of the feature...bicknell recommends 3 3/4" for tacky...4" for (normal) 4 1/4" dry/slick on a 900lb spring..so that the track comes to the car later...is always dry slick coming off 2 and 4 late...

racerwilson
Dirt Freak

Total posts: 357
posted March 09, 2005 04:35 PM  
Yup just a twist of the knob Start at 3-3/4 closed and open it up all night. I might recomend a lighter spring. Start with a 750.

dbradley
Dirt Freak

Total posts: 251
posted March 10, 2005 04:50 PM  
thanks racer,
Give us your thoughts on the lighter spring
D

dbradley
Dirt Freak

Total posts: 251
posted March 14, 2005 12:04 PM  
Racer,,Why physics/handling wise would you use the lighter spring in the bar,,,wouldn't the heavy bar hold the rear forward for a longer period of time,, or am I thinking about this backwards.
D

racerwilson
Dirt Freak

Total posts: 357
posted March 14, 2005 03:25 PM  
the heavyer the spring the harder to compress. If track stayed tacky or rought I would stay with a 900lb. If track slicks up recomend a 750lb wich is stock on a Shadow spring Jac-R. I run a 600lb spring with a SB at Accord and OC. It is alittle light for OC.

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