Don't even need to be adjustable if not lowered. LCAs will eliminate most, but with a UCA you get rid of it. Again, if you lower, you need either adj.UCA or LCAs to dial in the pinion angle.
Wheelhop in our cars is casued by the "squishy" rubber bushings in the suspension. The #1 culprit is the bushings in the LCAs, but the UCA ones affect it too.
Here's how it happens: you accelerate hard. As your axles are twisting the tires against the road, there is a equal-and-opposite reaction (remembmer Newton?) that twists the rear axle housing the opposite direction. The LCAs and the UCA hold the axle in place and fight this twisting. The steel control arms don't deform appreciably, but the soft rubber bushings at either enddo deform. This lets the axle housing rotate a little bit. When the tires break traction, the rubber bushings un-compress and the axle suddenly rotates back to the "at rest" position...and then the tiresgrab again...repeating the cycle over and over.
The solution is to replace the LCAs (and if your'e serious, the UCA) with aftermarket ones that have stiffer bushings. Polyurethane bushings and/or steel spherical bearings are much stiffer and don't "squish" like the OEM rubber ones do. This prevents the axle housing from rotating like this.
If your car is stock height and you have the OEM driveshaft then you can use solid control arms. But, if you are lowering the car or changing to a 1-pc driveshaft then you need the adjustable type so you can correct your pinion angle. (In this case you need EITHER adjustable LCAs OR UCA. Only one needs to be adjustable....I suggest adjustable lowers and a solid upper).
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Black 2006 GT Coupe
Dynatech LT headers & X; Borla catback
C&L CAI; 93 oct tune
Full BMR, Spohn & Steeda suspension
D-Specs; Alum driveshaft
Second Skin Audio damping; Infinity spkrs;
Goodyear Eagle F1 255F/295R - FR500 wheels
How did I know Al would come to this threads rescue!
Hey, I said the same thing he did!!! Except now my explanation sounds like it was written by a 3 year old. [sm=laughat.gif] Al does have an excellent way of explaining anything, doesn't he? Thanks Al....
what prevents wheel hop??
