Front suspenion work

[Steve Wood]

what do you mean lift?  When you rev the engine, the crankshaft rotates clockwise when viewed from the front.  Laws of Physics say that the block will try to rotate counter clockwise in response.

If you have good engine mounts, the engine cannot move much without the drivers side of the car trying to lift up while the the passenger side tucks down a bit.  If the brakes are on, and you are revving against them in gear, this will be somewhat noticeable if you are making enuf power. If the mount is bad on the drivers side, then the engine jumps up rather than twisting the car.

This is why those engine tie down straps that are connected to the alternator bracket ear are not a good idea.   If I felt like looking, I could get you a picture of one that broke off because the bracket could not withstand the force being applied to it it as the engine tried to go counterclockwi se and the tie down bracket was resisting.

If that was not your question, chalk up to trivia.

[earlbrown]

I was thinking he meant the ass end rising up while staging.



If he meant the left rear corner raising up, we're both right

[phil_long]

I was thinking he meant the ass end rising up while staging.

yes, thats what i meant

[phil_long]

all of the videos of our cars I seen at the track, when staging, the car rises. 

[Steve Wood]

Again, it's Newton's Third Law-  For ever action there is an equal reaction


In this case, stand on the drivers side and look at the rear wheel.  It is trying to turn counterclockwi se.  That means the axle housing has to try to turn clockwise with the same amount of force that is being applied to the ground by the tire.

The axle housing is connected to the frame/body by the control arms.  As the axle housing is trying to rotate clockwise, it lifts upward on the body via the control arms causing it to lift.


Now, how it lifts the car ultimately depends upon the location of the instant center.  Rather than try to describe that in words when pictures makes it far more obvious...try this

http://www.how-to-build-hotrods.com/tuning-4-link.html

BTW, our cars have a form of four link suspension so this applies

[phil_long]

Thanks a lot Steve!!!  BTW, my cousin Charles came over yesterday, and had a chance to ride in my Buick.  I think he has the bug again!!!

[Pyro6]

all of the videos of our cars I seen at the track, when staging, the car rises. 

I noticed that early on, even when our car wasn't running well. I haven't noticed many other cars do it like the GN's. Cool as shit though.

[phil_long]

all of the videos of our cars I seen at the track, when staging, the car rises. 

I noticed that early on, even when our car wasn't running well. I haven't noticed many other cars do it like the GN's. Cool as shit though.

def cool as shit!!

[Steve Wood]

If Charles is getting the bug, it's probably because he did not get a flu shot

[phil_long]

Lmao!!!!!!!!!!!!