rearend moving

GreenMustang00 · September 25th, 2011, 12:11 PM

Question is...
When launching hard at the drag strip, will the rear end move backwards on the body?
A few guys were talking about it and got me wondering who was right?

Edit: it is a 89 Foxbody with currently stock suspension besides adjustable lower control arms.

Sounds confusing the way I phrased it all, so read careful.

Thanks for any help

bitemark46 · September 26th, 2011, 05:39 PM

No, the upper and lower control arms hold it in place relative to the body. It probably has more side to side movement than front to rear.

-Mark

ReverendDexter · September 26th, 2011, 05:45 PM

It depends on the angle of the LCAs at rest. If the arms are angled down, then under compression the rear end would shift rearward slightly. If the arms are parallel to the ground, then under compression the rear end will move forward slightly.

I would think of the two, you'd want the former for a number of reasons that I'm feeling too lazy to type out at the moment (and is substantiated by the number of relocation brackets that move the axle-side LCA mount downward).

September 25th, 2011, 12:11 PM	#1
GreenMustang00 1 Wheel Peel 2000 Mustang 393w 2001 Mustang GT Vert Join Date: Mar 2010 Location: Wisconsin Posts: 3,583 iTrader: 4 reviews	rearend moving Question is... When launching hard at the drag strip, will the rear end move backwards on the body? A few guys were talking about it and got me wondering who was right? Edit: it is a 89 Foxbody with currently stock suspension besides adjustable lower control arms. Sounds confusing the way I phrased it all, so read careful. Thanks for any help __________________ 2000 393w Swapped Vert 2001 GT Vert 2002 Six Banger Last edited by GreenMustang00; September 25th, 2011 at 12:39 PM.

September 26th, 2011, 05:39 PM	#2
bitemark46 Regular Join Date: May 2008 Location: Tampa, Fl Posts: 397 iTrader: 0 reviews	No, the upper and lower control arms hold it in place relative to the body. It probably has more side to side movement than front to rear. -Mark __________________ -Mark- 98' N/A Cobra (Stock longblock) 11.79 at 114.64 (1.62 60ft)

September 26th, 2011, 05:45 PM	#3
ReverendDexter Priest of the Car Gods Clapped-out '90 GT 'vert ~5.5 seconds off TTOD :( Join Date: Jan 2007 Location: Rohnert Park, CA Posts: 13,808 iTrader: 0 reviews	It depends on the angle of the LCAs at rest. If the arms are angled down, then under compression the rear end would shift rearward slightly. If the arms are parallel to the ground, then under compression the rear end will move forward slightly. I would think of the two, you'd want the former for a number of reasons that I'm feeling too lazy to type out at the moment (and is substantiated by the number of relocation brackets that move the axle-side LCA mount downward). __________________ O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

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