Sway Bar for rear end

[want-a-be]

Jake,

I was thinking about some of the problems you are having in the first 60' of your runs. I thought you had mentioned that fish tailing was one of them. Do you have a swaybar, some call it a torsion bar, mounted on you rear end? If so,..how is it mounted?

These things really are great for most short commings of equalizing the distribution of preload. If the car leans one way then the sway bar will add preload to the propper side, mainly the opposite side, to get it going straight again. It's pretty awsome how they work.

Don

[lun40119]

yeppers, its solid mounted to the lower bars.....

[ejohnson03]

Wow, looks like a mighty fine Impala. 1967?

I am building up my 1976 Impala Custom.

Just finished squeezing in the 434 Stroker and 700R4 trans.

The rear coil springs and shocks need upgrading also.

Are you running any special rear suspension?

I have heard that METCO makes upper and lower Control arms that would keep me from bouncing of the pavement.

Any suggestions?

Thanks.

[lun40119]

Its a 67 chevelle with adjustable uppers solid lowers and CA connectors.....pretty much just upgraded stock stuff.

[ejohnson03]

Doh... sorry about that...

It is a very nice looking car.

[want-a-be]

But he does have an Impala,... or his wife does any way.

Don

[lun40119]

Yep wifey drives the Impy boat 3-4 times a week. Really rolling on the miles this year. Doing a cam, head intake swap this winter.............anyone know where I can get a good set of heads??????

[Awesome Bill]

lack of air pressure causes the sashaying or swaying or fish tailing. Also if the posi is given up this will cause one tire to bite let go bite let go etc. From the look of the hit of the tire, it needs more air pressure, you should never wrinkle the tire that bad! jmo

[lun40119]

That was with 12lbs. I remember in high school, I ran a 10.90's bbc in a 67 chevelle, and we ran the Goodyears at 8lbs. Looking at the pics and watching the video, you are right. More air will help alot. I also talked to a MT rep, he said that with 3600lbs, I should use a stiff side tire. These tires are just plain 28x10.50's I think I will get to the bottom of it. I am having a cage put in this winter, to keep the techs off my back. So next spring I should be able to run everyweekend. That is if my junk holds up.

I also have a new cam being ground. With super top secret lobes :rolleyes: But I will tell you this, it is shorter at .020 and .050.

[Trmnatr]

That was with 12lbs. I remember in high school, I ran a 10.90's bbc in a 67 chevelle, and we ran the Goodyears at 8lbs. Looking at the pics and watching the video, you are right. More air will help alot. I also talked to a MT rep, he said that with 3600lbs, I should use a stiff side tire. These tires are just plain 28x10.50's I think I will get to the bottom of it. I am having a cage put in this winter, to keep the techs off my back. So next spring I should be able to run everyweekend. That is if my junk holds up.

I also have a new cam being ground. With super top secret lobes :rolleyes: But I will tell you this, it is shorter at .020 and .050.

What about @.200" :D

Serious most Crane/Comp lobes and many others would be 10° shorter yet have the same @.200" number

[Awesome Bill]

most engines are over cammed anyway!

[lun40119]

The cam I am having done is shorter with more lift. And a lil wider.

[Awesome Bill]

sounds better already.

[lun40119]

Here is another pic that I found online. This is at the hit........bout two feet later it runs over itself, and unloads and spins. Ill get it...........but just wanted to give you an idea of what I am working with. This is with 36° timing on pump gas.
http://i172.photobucket.com/albums/w26/bells67/BOP-days-09-166.jpg

[Awesome Bill]

Here is another pic that I found online. This is at the hit........bout two feet later it runs over itself, and unloads and spins. Ill get it...........but just wanted to give you an idea of what I am working with. This is with 36° timing on pump gas.
http://i172.photobucket.com/albums/w26/bells67/BOP-days-09-166.jpg

Classic killing the side wall application. Just took a quick read threw all the post and Jake if your running this car without a roll bar, your doing very well. I never knew this was a real stock chassis. Taking a quick look and you can see the right rear side wall tire is being killed. This can easily be fixed with air pressure or preload of the upper right rear bar if they are adjustable. If you take a look at the right rear tire, its almost round. Your first 0-20 feet are with the left rear tire. Get that roll bar and stiffen up the chassis and most times the car will kept the rear tires planted longer and more evenly.

[lun40119]

Bill I think part of the problem with that pic is I was running a clutch style trac loc posi in my Dana. I have got a Strange 35 spline spool in there now. The trac loc was broken. Not sure if that was the problem, but the next burnout started with two wheels, and finished as one :eek:

I did finally get the balls to put a cage in the car, that is welded to the frame. I only drove it on the street with the cage, never made it to the track, but it stiffened up the frame 10 fold. You are thinking I should put an anti-roll bar in the car?

[Awesome Bill]

It looks like from the picture, the left rear tire was doing everything proven your point with the broken differential. With the roll bar, if you put an anti roll bar on you will have deadly consistent pressure on both axles no matter what power you through @ it.

But, you already have one with the sway bar, they do almost the exact same thing. I use the biggest one front and rear for perfect launches. A lot of people pull the sway bar off the front thinking it will help, it don't, it hurts. When I had my 68 BBC 468 Chevelle, I could drag the bumper and it was fun. I took the front and rear sway bar off and the car would not leave. It lifted the front left wheel as the right rear killed the spring and the car rolled over. Put everything back on and right back to dragging the bumper. Posi traction units @ best might be able to work with a good amount of power. Either way you will see a big difference in the 60 foot with both tires getting it done.

I have always wanted to put a 66 or 67 together just not got around to it. Almost bought one to play with and it did not work out. I got to many toys to play with as it is.