Addicted to day 2, chevelle transformation help?

[Hemicolt]

This shows how little these companies and racers, (at that time), understood instant centers and
the way the suspensions where designed to work. Had anyone had the foresight to market
tubular, rear control arms with rod ends, they could made a ton of money after they proved
how well they worked.

[Hemicolt]

The upper control arms hold the rearend from moving side to side.
As long as the front bolt hole on the ladder bars are at the same height as the lower control arm mounting point, and the ladder bars are at the same angle, the instant center wouldn't change enough to fool with it.
Whenever I get around to installing the NMW ladder bars on my Chevelle, I will not bolt them down hard to the axle tubes and will weld a stop onto each side of the bars to keep them from walking side to side.

[mockingbird812]

Interesting trick. So, in theory it would momentarily heft a portion of the car's weight to the passenger side of the car (am assuming some sort of engine limiting strap [img]<<GRAEMLIN_URL>>/dunno.gif[/img] ?). Bet the frame really twisted on the launch (w/o a roll bar). I suppose in effect you would have a net loading of the right/rear tire which might help the launch. So, did it help Paul?

[Plowman]

It was pulling up Sam{all the time you are on it}. The net loading of the right/rear tire is up off the ground. Because of the drive shaft rotation{or engine rotation}. Not to get too long a front and rear engine plates would help{called motor plates}. Hope that helps Sam,if not pm me your phone number.

[PxTx]

I think the launch took out the frame mount, as on cracked or broke.

[mockingbird812]

I see now. Thanks!

[Hemicolt]

Imagine twisting a rag in your hands. The engine is twisting in one direction while the rearend is twisting in the opposite direction. Pass. side air bag helps to keep that side of the rearend from climbing up into the car. Roll cages, boxing the inside of the frame helps control the torsional twist as well.
Here is a good video showing the twisting motion:

http://www.streetfire.net/video/drag...la_1998857.htm