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Author Topic:   Pull bar setup....
Sumo
Member
posted October 24, 2000 07:12 PM
WHEN YOU MOUNT ONE YOU WANT TO MOUNT IT AT LEAST 10 INCHES ABOVE AXLE CENTERLINE AND 2-3 INCHES BEHIND, WILL HAVE MORE LEAVERAGE MOUNTED BEHIND THAN AHEAD. START WITH IT CENTERED L-R IN CHASSIS 10-15 DEGREES DOWNHILL TO START.


Sumo
Member
posted October 24, 2000 08:45 PM
CUSTOM PERFORMANCE,
Forgive me..I'm a bit confused..
Seems to me that by locating the pullbar mount behind axle center, you'd be LOSING leverage due to the rotational arc of the mount being in a downward direction. If the mount is traveling downward as it moves back through it's arc wouldn't it flatten out the bar, causing it to lose anti-squat as opposed to that mount being in front of the axle and moving upward with rear end rotation, and thus gaining anti-squat?
The car I have now has the mount directly above axle center, and I've never given any thought to putting it anywhere else until reading this post... It certainly deserves some consideration.
Don't get me wrong.. I'm not trying to be a smartass here.. I don't claim to know it all, it's just that my mental picture of what you've described isn't making sense to me, and I'm not closed to new ideas if I can understand them.

Thanks,
Matt


CUSTOMPERFORMANCE
Member
posted October 24, 2000 09:16 PM
my pullbar only moves 2-3 inches and you do not lose that much angle with rotation. i have not tryed with it centered, but will keep it in mind.


36k
Member
posted October 25, 2000 04:35 PM
SUMO, go to afco's web site a make a post of this to Mark O, he has some interesting thoughts on T-Link & lift arm set-ups.


Sumo
Member
posted October 25, 2000 05:18 PM
quote:
Originally posted by 36k:
SUMO, go to afco's web site a make a post of this to Mark O, he has some interesting thoughts on T-Link & lift arm set-ups.

Thanks 36k. I do believe that the mods today are losing alot of traction with a pullbar setup. Its aways hard to try different stuff when running for points but you have to once and a while to stay ahead of the game. We tried alot of different places on the rearend this year and never was really happy. I will post this to Mark o. and ask him but i hope i don't get the same stuff they alwas say.


36k
Member
posted October 25, 2000 08:09 PM
SUMO, I'll keep an eye on this post & let me know what you think.


Sumo
Member
posted October 25, 2000 08:51 PM
quote:
Originally posted by 36k:
SUMO, I'll keep an eye on this post & let me know what you think.
36k,
First i need to slow down and learn how to spell.Sorry.New at this.
I truly believe that we are missing something with todays t-bars on mods. We have 2 DW8's and run a progressive spring which has helped greatly but am not completely happy.We to get around 2-3 inches of travel. We're 1 1/2 to 2" offset to left and about 13" above axle and 2" approx. behind. I'm questioning if you would mount this ahead of axle the same but maybe 6" in front of centerline if you might get more traction? That is the question? Traction...just want more of it.



36k
Member
posted October 25, 2000 09:48 PM
what progreesive are you running,(afco or hypercoil) ??


Sumo
Member
posted October 26, 2000 02:51 PM
quote:
Originally posted by 36k:
what progreesive are you running,(afco or hypercoil) ??
Afco...



36k
Member
posted October 26, 2000 06:01 PM
I have never known any one to like the progresives, especially the afco, everyone that I know who run them thought they were ok till the track went slick. And my feeling is if there is a decent bite about everything works pretty good.I have tried several different T-links from 16" to 40+" & 2"L to 2"R, And really havn't adjusted myself out of a race. I feel there is a lot to be desired in this area.


Sumo
Member
posted October 26, 2000 06:12 PM
quote:
Originally posted by 36k:
I have never known any one to like the progresives, especially the afco, everyone that I know who run them thought they were ok till the track went slick. And my feeling is if there is a decent bite about everything works pretty good.I have tried several different T-links from 16" to 40+" & 2"L to 2"R, And really havn't adjusted myself out of a race. I feel there is a lot to be desired in this area.
36K
What kind of car are you running? I can tell you this much we started out with a 1200lb. and went to the prog. at the end off the year here and felt the car hooked up better. You can't forget that we've been working with are panhard bar all year and found out that a short one behind the rear end was working good for all tracks wet or dry... We are going to try some different setups this next year but was happy with what we ended up with. Have to go back to work. talk to you later...



36k
Member
posted October 26, 2000 08:20 PM
last 3 yrs harris 2 link (also tried 2 link swing arm) everyone I know who tried progressive were running 2 links.( Should have told you that in previous post, sorry) I could maybe see it working in a Z-link set -up. I think 5th arm works good on floated set-ups also,I know a few guys who are using the rubber biscuit type now and say they are better on dry slick but wear out after 5 to 6 races.I usually run a 7 or 800 in my T-link.


Sumo
Member
posted October 26, 2000 08:53 PM
We to run against a couple of new harris cars and they are fast at times. Wet not so fast but dry is were we have a problem with them. We run z-links on both of are DW8's rayburn swing arm style. We've made a few changes and have come back to it. Want to work on pullbar setup. We run on bearings on birdcages so all the work is done on pullbar.
Would like to run a liftbar once but never want to take a chance when running. I thank you for your input. At least you will speak.
Let me ask you a question about your harris? Do you run or did you here about this mount harris has that mounts the panhard bar to the middle of rearend? Any input would be nice.
Also will try a 2-link setup this year on the left rear. Keep the rr on z-link. What do you think of this. What state do you run? We run Wisconsin tracks mainly but do like to travel south.


36k
Member
posted October 26, 2000 09:46 PM
I run in southern Ia,I like the idea of Z-link & 2-link combo, Noble is running the short bar to center of rear on his Dirtworks & Shryock is trying this some on his Harris only on front J-bar bracket, lot of guys trying the short bar but none of the guys I run with have tried it. We have a pair of brothers down this way kickin *** with leaf cars!!!!


Sumo
Member
posted October 29, 2000 05:46 PM
Ya, seen Noble run this spring in ark. He is got something figured out on his DW. That short panhard bar to center of rear end is what i'm leaning towards to start out with. I work some funny hours so sorry about not returning sooner. If you want to carry on this without having everybody watching e-mail me at js@repairman.com. Would like to talk about other things if ok...



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