Originally Posted by Pacnorthcuda
Originally Posted by roadrunner2
Originally Posted by ragtop
I watched the video of the Hemi Cuda and noticed the rear chassis rising after staging the car before the launch. Does that mean that the pinion snubber is being used and is adjusted close to the chassis? I was told that Dave was not using the snubber on his Road Runner.


That’s just the engine pushing against the converter. Mine does the same thing but worse.

Bill


No. The differential pinion is moving up, trying to flip the diff over backwards, the opposite direction of the wheels trying to rotate forward. (...for every action there is an equal and opposite reaction.). This tries to wrap up the leaf springs into an S, and plants the rear down towards the ground, which lifts the body.
A snubber, once it contacts the floorboard takes advantage of this further and plants the rear even harder and further cause the rear of the body to rise even more.

There is no snubber on the car, I don’t know someone that runs one. it is just climbing on its suspension. The rear shock extension is really soft. Soft enough that it can separate by rotating the housing out. A real fine balance between to much/fast separation and bouncing the tire and leaving some “hit” on the table. My car doesn’t like when it climbs that much on the converter. A click tightening up the rear extension stopped it. For me with the rear up like that it it pulls the center of gravity forwards reducing my % of rise. Which in an leaf spring A body is horrible to begin with. I’m happy if you can see the car transfer weight and the axle separates about 1” and holds it like that through the front suspension topping out. Maybe I should get some Sears coil overs? 😇

best of 11.39 at 117 mph 1.60 60’. 68 340 S Barracuda Fastback F.A.S.T [IMG]http://i67.tinypic.com/2mnnnnt.jpg[/IMG]