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Author Topic:   Torque arm/chain added to car....TIGHT!!!
nwarkracefan
Dirt Full Roller

Total posts: 28
posted December 03, 2005 12:54 PM  
After finally get to make some laps with the torque arm and chain added in on our car in addition to our pullbar, the car is majorly tight in. The car won't turn while under braking at all.

Our car is a 4 bar LR with reverse z link RR. Spring in front on LR with shock behind, and spring on swingarm on the RR with shock in front. When we take the torque arm/chain off the car will turn.

We added the torque arm and chain in hopes of keeping the car loaded better, and hoping to be able to drive in deeper, but it flat out won't turn.

Anyone else have this type of result with the addition of the torque arm/chain for braking?

NWA

zeroracing
Dirt Forum Champ
Total posts: 1914
posted December 03, 2005 03:09 PM  
A chain will make it tighter, that is what it will do, to tighten it more put a 6th coil on it. Take off the chain to free it up.
But that is what a chain does is tighten the car up a ton.

nwarkracefan
Dirt Full Roller

Total posts: 28
posted December 03, 2005 04:48 PM  
just our luck...lol

we were under the impression that if you added the chain bar to an already well handling car that if anything, all it would do is allow us to get a bit further into the turns and avoid unloading the car.

Didn't expect it to make the car undriveably tight.

That brings the question of whether or not to leave it off of the car, or to leave it on and loosen the car up.


badfastjr
Dirt Maniac

Total posts: 194
posted December 03, 2005 05:04 PM  
why not try adding wedge to the car until it will turn in and the you'll be gaining going in and coming off......?
maybe trying puttin 3-4 turns in the lr for starters and see what that does

nwarkracefan
Dirt Full Roller

Total posts: 28
posted December 03, 2005 06:15 PM  
we'll do some more experimenting with it when the season picks up next year. We're behind the 8-ball tonight on making the show in McAllen, so the guys are going to leave it off of the car tonight.

The driver said you could feel that the car was "more hooked" coming out, just that he flat out couldn't get it to turn.

Thanks for the input

NWA

dirtbuster
Dirt Forum Champ
Total posts: 2023
posted December 04, 2005 09:35 AM  
The torque arm with only a brake chain wont affect exit at all so if he thought it was hooked harder on exit it was all in his head.

shopboss
Dirt Roller

Total posts: 11
posted December 04, 2005 11:12 AM  
do you have your brakes floated on the birdcage or clamped to the axle? makes a difference on how the chain works.

nwarkracefan
Dirt Full Roller

Total posts: 28
posted December 04, 2005 11:53 AM  
Our brakes are clamped to the axle.

nwarkracefan
Dirt Full Roller

Total posts: 28
posted December 04, 2005 08:14 PM  
I did a very poor job of wording what the driver told me...sorry.

He said that he felt the car stayed "loaded" better and made a better transition from braking to throttle.

The car just wanted to go straight under braking was the problem.

quote:
Originally posted by dirtbuster:
The torque arm with only a brake chain wont affect exit at all so if he thought it was hooked harder on exit it was all in his head.


donslink1
Dirt Freak

Total posts: 336
posted December 05, 2005 04:40 AM  
also the length of the bar and the mounting point of the chain is very important!!

leftturn73
Dirt Maniac

Total posts: 200
posted December 09, 2005 12:11 PM  
Not sure the position of your chain lift arm. If your chain/arm is straight ahead in line with the car move the chain to the left to add more roll and to the right to reduce more roll. I would think if you reduce the roll it should turn better.

nwarkracefan
Dirt Full Roller

Total posts: 28
posted December 11, 2005 12:40 PM  
The lift bar is mounted to the axle housing to the right (toward passenger side) of the car at the point where the 3rd member housing angles down to join with the axle tubes. We used the bracket that Southwest Speed sells that attaches at that point on the rearend.

The chain is attached 36" forward on the bar, to a chassis rail that is directly above the attachment point to the lift arm.

...that's hard to put into words, so hopefully you all can make sense of it.

20crew
Dirt Full Roller

Total posts: 43
posted December 11, 2005 01:19 PM  
we had the same problem with tight in
on 4barlr , spring clamped in front ,
zlink rr ,spring on top, changed car to 4bar rr the roll steer really helps the car turn in and stoped the slight throttle push
we had at times off the corner.

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