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Author Topic:   J Bar
racer2
Dirt Freak

Total posts: 352
posted October 26, 2005 02:31 PM  
Raising only the left mounted frame mount up on the frame will it tighten or loosen chassis? will it be more or less body roll?
does body roll mean a tighter chassis?

FlyNLoIMCA17
Dirt Forum Champ
Total posts: 753
posted October 26, 2005 05:19 PM  
Should tighten the chassis and for the most part increase body roll.

As for does body roll equal a tighter chassis...... I got to see this first hand recently. I thought that more roll would be tighter. Not neccesarily because more roll doesn't neccesarily mean more weight transfer. So no, more roll doesn't ALWAYS mean a tighter chassis.

rocket36
Dirt Freak

Total posts: 209
posted October 26, 2005 10:48 PM  
more angle will increase side bite on right rear tire.

racer2
Dirt Freak

Total posts: 352
posted October 27, 2005 07:34 AM  
thank you all

Chad
Dirt Freak

Total posts: 269
posted October 27, 2005 05:56 PM  
This is good question. The j-bar can be slightly confusing about how adjustments effect roll center. The roll center is projected past the pinion end of the j-bar. So, raising the frame side increases angle and lowers the roll center. The added angle also increases side bite as mentioned above. The following article should help explain in more detail. http://www.afcoracing.com/tech_pages/panhard.shtml

[This message has been edited by Chad (edited October 27, 2005).]

Kromulous
Dirt Forum Champ
Total posts: 796
posted October 28, 2005 08:03 AM  
You raise that panhard bar on a 4 bar car going in the corner off the bars and then come back and tell me how it changed you in the middle of the corner.

That article is so rediculous it should be pulled from the internet.

Same thing, then raise that panhard bar on a 4 bar car while you enter the corner still on the bars, and tell me what it did in the middle of the corner.

Krom.

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