98 Silver SS

iTrader: (1)

I just got my 28-11.5-15 Hoosier Quick Time Pro's mounted and on the car. Took it out for a test drive and everything felt fine, but I went back and looked at the rubber marks and it looks like I have some slight wheelhop. Unfortunately I can't get away with much street suspension testing. I have QA1 rear shocks, stock springs, and lower control arm relocation brackets with them in the bottom hole; do I need to stiffen up my rear shocks just a little bit? Any help is greatly appreciated. Thanks

chet3310

You didn't feel the wheelhop? I would say you should be good. Try different air pressures.

98 Silver SS

iTrader: (1)

Didn't feel anything, but could see it wasn't planting the tires squarely by the rubber marks on the road. I'm kind of concerned about ANY wheelhop; worried it may be magnified at the track with the nitrous.

nocooler

iTrader: (5)

Stock lower control arms?

Changing them fixed all my wheel hop issues.

98 Silver SS

iTrader: (1)

Sorry, should have added that I have Spohn control arms, torque arm, and panhard bar. Pinion angle is at -2.

Wnts2Go10O

iTrader: (12)

this is somethng that seems like is a vdeo needed kiind of thng. whats your shock settiing?

ps try moving the lca's to a another hole

BMR Tech

iTrader: (9)

How much air in the tires and what are the shock settings?

Either one will contribute to the problem....

ty_ty13

iTrader: (42)

the skipping marks your seeing may be the car "paddling" the tires because not enough air is in them.

Pro Stock John

iTrader: (34)

Are those tires like ET Streets, DOT slicks, not drag radials right?

I'd run the tires at 15 psi cold to start, and run the rear shocks at 7/7, more on the stiff side. I'd start from there.

98 Silver SS

iTrader: (1)

They are bias ply tires, and they were at 15psi cold. The rear QA1's are set at 4, maybe that's my problem. When I had the 27's on the car everything seemed fine, this just showed up when I threw the 28's on the car.