WillYJ
09-22-2003, 03:30 PM
Well, I finally got a traction bar and now I have induced the torque rise phenomenon. My bar is installed on the driver's side, because the exhaust and offset D44 I am using in the rear made for little room on the pass. side. I've searched about traction bars and found that the torque rise is fairly common. I'm no engineering expert, but I am sure there are some cons to the new quirk I have introduced into my suspension. Is it as simple as changing the shackle length of the bar, or maybe changing the angle of the bar? Thanks for your advice.
NE-RokToy
09-22-2003, 04:33 PM
Longer bar will help, and less angle. There may be some side effects to the anti squat your experiancing but I would wheel it before you start messing with things.
crawlinTJ
09-22-2003, 07:23 PM
What your getting is the bar "pushing" your jeep up when the pinion try's to rotate under forward motion. That force has to go somewhere, and because your springs allow the jeep body/frame to move up and down, it allows the pinion to try and push the jeep up. This drawback to keeping your springs from wrapping/breaking is usually worth it though.
Do you have any pics of it? That would help to point out the problem.
thejeepjeepkid
09-22-2003, 07:27 PM
The more Anti-squat the more traction too. It is a proven and that is what the basis of all drag racers build there suspension. So that lift could be adding up to 100 pds more pressure to the ground becuase of the way you have your bar set-up. The only thing I have yet to find out is how much anti-squat is desirable, but definetly you want some to put more pressure on the ground. (and there were tests and studies to prove what I just said so lets not make this an arguement on anti-squat (agian)).
66CJdean
09-22-2003, 07:35 PM
The biggest problem with it is when you get it to where it is about to go over and once you touch the gas it then rises up and goes over just because of the wrap bar. That is the one time I could see it sucking!
NE-RokToy
09-22-2003, 08:57 PM
Originally posted by 66CJdean
The biggest problem with it is when you get it to where it is about to go over and once you touch the gas it then rises up and goes over just because of the wrap bar. That is the one time I could see it sucking!
expecially if he's got the passanger side down hill, combine body lean+engine torque+wrap bar on driver side = :crybaby2:
I would think with the offset rear you could get the bar centered
66CJdean
09-22-2003, 08:59 PM
I run an offset rear 60 so the wrap bar is very near center and ther is no detectable lift with my bar.
WillYJ
09-23-2003, 06:53 AM
I'll get pics of my setup tonight. The setup looks typical of the ones I have seen posted here. I'm gonna roll this beast eventually, anti-squat or not...so that doesn't concern me *too much*. Rear axle is D44 out of a J-10; offset is only about an inch or two.
Roll cage will be installed next month as a precaution. :D
YJ4RoX
09-23-2003, 08:11 AM
I have a little anti-squat with my wrap bar set up. Its tolerable 98% of the time.
I have noticed on ledges and waterfalls the jeep wants to "buck" now. It didnt do this on the same obstacle before the installation of the wrap bar. I know its the antisquat loading as the springs compress and causing it to jump. Makes me nervous thinking of d-shaft and axle breakage when it starts bouncing.
papastoy
09-23-2003, 02:37 PM
Originally posted by WillYJ
I'll get pics of my setup tonight. The setup looks typical of the ones I have seen posted here. I'm gonna roll this beast eventually, anti-squat or not...so that doesn't concern me *too much*. Rear axle is D44 out of a J-10; offset is only about an inch or two.
Roll cage will be installed next month as a precaution. :D Maybe, but theres no need in rushing it, if the antisquat is bad enough, it can cause some serious handling problems in off camber areas. I know some have solved this problem with tight ,axle centered limiting straps, longer arms solved my problems.