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Author Topic:   angled pull bar to right
joeltjen
Member
posted November 27, 2003 09:22 PM
i'm thinking about replacing my torque arm with a pull bar but for clearance reasons i would have to angle it to the right. it would be in the center of the rear end but would angle to the right of the drive shaft. i've heard of this being done and some say it tighens up the car, has anybody had any experience with this or tried it either way???? thanks, john

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CUSTOMPERFORMANCE
Member
posted November 27, 2003 10:12 PM
To the left tightens car for me and to the right loosens car.


lucky13
Member
posted November 28, 2003 06:16 AM
hey customperformance, have you ever done anything with the push bar set-up, if so how far up from centerline and how much angle??? now if i could get it past my fuel cell! thanks, john


66jj
Member
posted November 28, 2003 10:18 PM
technically you should locate your bar based on track width, and left side wt.

theres a formula for it, if you want Ill look it up and post it.



WPP
Member
posted November 29, 2003 06:32 AM
Look it up i would like to see it


66jj
Member
posted November 29, 2003 08:23 AM
In order to mt the top link at the center of the weight mass of the car.

multiply the cars track by the cars left side percentage.

for example 60 in track 58%ls.

60x.58=34.8

so the center of the wt mass is 34.8 to the left of the center of the rr tire.

putting your bar in this location would help load both tires evenly. adjusting it side to side will add load to whichever tire it is closer to when moving the rear mount.

moving the front mount is like rear steer I think, if you go right it loosens, left tightens..

WPP
Member
posted November 29, 2003 05:36 PM
I read your post and went to the shop and check it and man your right 60 x 53 i went off the center of the right wheel and it was dead on. How did you get this info


66jj
Member
posted November 29, 2003 06:16 PM
In 2002 when I was converting my sportsman car from leaf to a 3 link I started reading every book I could, I have all of the steve smith books. many have the same stuff, but in every book theres allways something to be found thats new. I dont watch much tv, I read these books over and over looking for something I may have missed. I should take all the good info I have found and some of my own and write my own book.

anyways the formula is in "pavement stock car technology".

when I was running pavement I studied all the dirt books also, theres a lot of info between the lines.

I can say I am somewhat surprised that yours was exactly on. what brand chassis is it?? Is it adjustable on the front and rear?

66jj
Member
posted November 29, 2003 06:22 PM
I forgot the reason I rambled above is that the formula nor any form of expanation is in any of the other books I have.

I have the building a imca mod, street stock tech, and a latemodel dirt book written mostly by GRT. plus the pavement book.



WPP
Member
posted November 29, 2003 07:49 PM
Mine is a dw 8 and you can adjust it right or left i just got lucky i have working on pullbars for about a week now and i have been thinking about going to a shorter pullbar right now it is around 36 to 38 inches the car is a 112 wheelbase i think it would be better was a short pullbar i feel like i need the pullbar to react alittle bit faster.


racingcrazy
Member
posted December 01, 2003 09:01 AM
Iv been reading this form and some how everybody went from the front mount to the back. Is the location on the front have the same application as the back mount? Mine can move side to side front and back.Does moving the front to the left tighten up the car? and to the right loosen the car? I have always kept in the center in the front, but would like to use as a fine tunning adjustment.


66jj
Member
posted December 01, 2003 09:12 AM
yes the front should adjust side to side and to the right loosens left tightens just like putting rear steer in your car.

moving it as a unit side to side effects which wheel is more heavily loaded..

Jeff

Chad
Member
posted December 01, 2003 01:51 PM
Moving the front mount to the left definitely tightens the chasis. But, be careful that the pullbar doesn't bind in the mount or hit any downtube bars in the chasis when the car rolls over and pulls the rearend to the left. I run a short j-bar, and the rearend moves quite a bit. Run the car through all possible travel before just moving the front mount all the way to the left. Just a friendly reminder. I found out the hard way.


dluna
Member
posted December 01, 2003 11:35 PM
Can someone explain exactly "WHY" it will tighten the car when the front is toward the left? I can't picture it in my head for some reason as to why this is so. Maybe it is just too late in the evening. Is it pulling some weight off of the left front? more sidebite (tighten getting in)? just guessing here!

Thanks.

RTR Dave
Member
posted December 03, 2003 06:38 PM
THe car gets tighter when you move the front mount to the left becasue when you step on the gas it lifts more on the left side of the car and plants the left rear tire harder casuing more dynamic cross weight (actually it is not weight it is just loading)...the game becomes when exiting the corner how hard can you plant the left rear and still make the car turn.....seen the 3 wheel guys?....My cousin runs a house car for dirt works and for a while he ran as much right side weight as he could with the pull rod front mount almost in his ribcage. he needed the weight on the right side when he was in a straight line or the tires would break loose. becasue the left rear was carrying all the weight. All of this was with a 3 link car also......and with the left rear spring about 6 inches forward on the left lower trailing arm. (this casued most of the weight to be put on the right side of the car) It was rather scary to watch, but it was goofy fast.

Dave at RTR

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