Suspension and Chassis Questions about your suspension? Need chassis advice?

Wheel hop while under hard turning

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Old Dec 9, 2002 | 07:16 PM
  #1  
demonkey36's Avatar
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From: Orlando, FL
Car: 1991 Camaro RS
Engine: Was 305 LO3 TBI, now carbed 355
Transmission: Auto
Wheel hop while under hard turning

If I'm at the end of a cul-de-sac or something else and I'm turning her all the way to one side, I get pretty noticeable wheel hop. Why does this happen...any ideas? Or is this too vague a question?
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Old Dec 10, 2002 | 05:29 PM
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Eightyninef's Avatar
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what brand tires, and size?
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Old Dec 10, 2002 | 05:33 PM
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From: ASHEVILLE NC
Car: 1988 IROC
Engine: l98 350 tpi
Transmission: 700r4
posi? check the fluid,
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Old Dec 10, 2002 | 09:56 PM
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From: Orlando, FL
Car: 1991 Camaro RS
Engine: Was 305 LO3 TBI, now carbed 355
Transmission: Auto
on the back -- kumho ecsta supra's...245-50-16's

no posi....i have a stock 2.73 rear end
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Old Dec 10, 2002 | 09:57 PM
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From: Orlando, FL
Car: 1991 Camaro RS
Engine: Was 305 LO3 TBI, now carbed 355
Transmission: Auto
and the hop isn't just once.....it happens every few feet during a sharp turn-around.
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Old Dec 11, 2002 | 12:58 AM
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drop-top IROC's Avatar
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From: Long Beach, CA
Engine: 305 TPI (LB9)
Transmission: WC T-5
If your rear shocks/springs are blown, replace them or get stiffer ones. You also might wanna try some LCA relocation brackets.
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Old Dec 11, 2002 | 06:46 AM
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is it front wheel hop or rear?
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Old Dec 11, 2002 | 12:44 PM
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if its rear, it sounds like spider gears. if its front id like to know my self because my car does it too. The fronts push at low speed.
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Old Dec 11, 2002 | 01:09 PM
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demonkey36's Avatar
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From: Orlando, FL
Car: 1991 Camaro RS
Engine: Was 305 LO3 TBI, now carbed 355
Transmission: Auto
well i guess it's not so much a "hop" as in the tires come loose from the ground......it's hard to explain.....almost like.....well, when i turn the wheel all the way to one side and move, the car almost....jerks every few seconds.
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Old Dec 11, 2002 | 01:11 PM
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My fronts skip because of the sucky SZ50's. They harden up in the cold like rocks, and instead of gripping, they skip on the pavement.
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Old Dec 12, 2002 | 06:46 PM
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mrr23's Avatar
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From: orlando, fl usa
Car: 1986 pontiac TA
Engine: 360 HSR
Transmission: 700r4 3300 yank converter
Axle/Gears: 3.27 9 bolt
the hop is the idler arm not positioned properly. this causes what is called toe out on turns to be incorrecty. when at full lock it, does it make the car hop side to side? in a turn, the inner wheel travels less distance in the turn than the outer wheel.

for instance, you turn the wheel left 20*. the right wheel is supposed to turn approximately 18*. because the outer wheel travel further. so it turns less. if this is off, like on my car( left 20* right 21* in a left turn), then the outer wheel skips across the pavement because it's turned too far inward of the turn. to fix this you move the idler arm up/down to make the centerlink parallel to the ground.

here's a pic of the slots where the idler arm goes.

http://www.fl-thirdgen.org/idlerarm.html

and here's a tech article on installing one.
Attached Thumbnails Wheel hop while under hard turning-idlerarmslots.jpg  

Last edited by mrr23; Dec 12, 2002 at 06:50 PM.
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Old Dec 12, 2002 | 08:39 PM
  #12  
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From: Orlando, FL
Car: 1991 Camaro RS
Engine: Was 305 LO3 TBI, now carbed 355
Transmission: Auto
so i need to replace it, you think, or just adjust it?
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Old Dec 12, 2002 | 08:59 PM
  #13  
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From: orlando, fl usa
Car: 1986 pontiac TA
Engine: 360 HSR
Transmission: 700r4 3300 yank converter
Axle/Gears: 3.27 9 bolt
well you would have to check it out to see if it's worn. lift the front off the ground. grab the idler arm and see if you can move it up/down. or you can grab the wheel and move left/right while looking at the idler arm to see if it moves that way. won't always see it moving using the wheel method.

i see you are in orlando also. call me at (407)295-7073 robert. maybe you can bring it by my shop to have a look at it.

www.asbdcnow.com/tredalign
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Old Dec 12, 2002 | 09:40 PM
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Thats an interesting point but i installed my idle arm according to TRW's specs and it still does it, it didit before two when it was way out of spec.
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Old Dec 12, 2002 | 10:04 PM
  #15  
demonkey36's Avatar
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From: Orlando, FL
Car: 1991 Camaro RS
Engine: Was 305 LO3 TBI, now carbed 355
Transmission: Auto
Robert -- thanks for the offer, man. Things have been pretty busy with school lately, but hopefully I can give you a call when I get some spare time!
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Old Dec 13, 2002 | 08:08 PM
  #16  
mrr23's Avatar
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From: orlando, fl usa
Car: 1986 pontiac TA
Engine: 360 HSR
Transmission: 700r4 3300 yank converter
Axle/Gears: 3.27 9 bolt
anytime. call when you've got some free time and i'll look at it. don't forget to check out www.fl-thirdgen.org
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Old Dec 13, 2002 | 09:24 PM
  #17  
demonkey36's Avatar
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From: Orlando, FL
Car: 1991 Camaro RS
Engine: Was 305 LO3 TBI, now carbed 355
Transmission: Auto
don't forget to check out www.fl-thirdgen.org
been a member since nathan got the new message board up
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Old Dec 13, 2002 | 09:25 PM
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mrr23's Avatar
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From: orlando, fl usa
Car: 1986 pontiac TA
Engine: 360 HSR
Transmission: 700r4 3300 yank converter
Axle/Gears: 3.27 9 bolt
thanks.
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