Wheel hop issues - ZR-1 Net Registry Forums

Subfixer · 01-02-2025

Whenever my tires break loose, I get severe wheel hop. Is this typical? I cringe every time because I don't want to break something. Any fixes? Thanks.

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-=Jeff=- · 01-02-2025

How old are your tires?

Subfixer · 01-02-2025

About 4 year old PS2s. Been the same since they were new. Hot or cold doesn't matter.

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Subfixer · 01-02-2025

Have had this issue since I got the car. Both with stock fx3 suspension and fx3 coilovers.

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WARP TEN · 01-03-2025

Perhaps the shocks are failing and losing their ability to control the axles? Usually wheel hop results from a poorly controlled axle; you experience what used to be called axle windup. My solid axle '68 Hemi Roadrunner had a lot of wheel hop with its solid axle but I fixed it with a set of stout traction bars. That wouldn't work on a ZR-1's independent suspension but it was great back in the day. And usually an additional recommendation was better shocks. --Bob

Young1 · 01-07-2025

Yep I remember that. My FX3 was functional and shocks not leaking. Replaced all oem rear suspension rubber bushings with Energy Suspension polyurethane. I left the batwing as oem. I also replaced the shock bushings with polyurethane. I had to call Energy to figure those out. Problem solved. No hop even at drag strip. BTW get the black bushings.

Subfixer · 01-07-2025

Mark replaced all my bushings a couple of years ago with the purple poly ones. I'll take a look at the shock bushings. Although converted to coilovers, those bushings may be originals.

Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app

Karl · 01-07-2025

I swapped my entire rear, less the batwing to super pro bushings. Much better than traditional rubber or polyurethane.

Subfixer · 01-07-2025

Just checked my build sheet... All bushings were replaced with Super Pro bushings, front and rear.

Karl · 01-07-2025

I asked artificial intelligence on Google for the heck of it.....

AI Overview

+1
Wheel hop in a rear-wheel drive (RWD) car can be caused by a number of factors, including:

Suspension damage: Suspension damage can be caused by hitting potholes or other road hazards, worn components, or loose wheel nuts.

Tire issues: Tires that are underinflated, unevenly worn, or imbalanced can cause wheel hop.

Axle twisting: Wheel hop occurs when the axle twists, or "winds up," and then the tire breaks loose and snaps back. This constant twisting and unwinding causes the tire to bounce.

Power levels: If the tire can't handle the amount of power being applied, wheel hop can occur.

Bushing deflection: Bushing deflection can cause wheel hop.

Shocks: Using the wrong shocks can cause wheel hop.

01-02-2025	#1
Subfixer Join Date: Sep 2018 Location: Groton, CT Posts: 396	Wheel hop issues Whenever my tires break loose, I get severe wheel hop. Is this typical? I cringe every time because I don't want to break something. Any fixes? Thanks. Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app __________________ 1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige

01-02-2025	#2
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,157	Re: Wheel hop issues How old are your tires? __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

01-02-2025	#3
Subfixer Join Date: Sep 2018 Location: Groton, CT Posts: 396	Re: Wheel hop issues About 4 year old PS2s. Been the same since they were new. Hot or cold doesn't matter. Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app __________________ 1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige

01-02-2025	#4
Subfixer Join Date: Sep 2018 Location: Groton, CT Posts: 396	Re: Wheel hop issues Have had this issue since I got the car. Both with stock fx3 suspension and fx3 coilovers. Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app __________________ 1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige

01-03-2025	#5
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,141	Re: Wheel hop issues Perhaps the shocks are failing and losing their ability to control the axles? Usually wheel hop results from a poorly controlled axle; you experience what used to be called axle windup. My solid axle '68 Hemi Roadrunner had a lot of wheel hop with its solid axle but I fixed it with a set of stout traction bars. That wouldn't work on a ZR-1's independent suspension but it was great back in the day. And usually an additional recommendation was better shocks. --Bob __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"

01-07-2025	#6
Young1 Join Date: Sep 2016 Location: Ocala, FL Posts: 897	Re: Wheel hop issues Yep I remember that. My FX3 was functional and shocks not leaking. Replaced all oem rear suspension rubber bushings with Energy Suspension polyurethane. I left the batwing as oem. I also replaced the shock bushings with polyurethane. I had to call Energy to figure those out. Problem solved. No hop even at drag strip. BTW get the black bushings. __________________ Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much.

01-07-2025	#7
Subfixer Join Date: Sep 2018 Location: Groton, CT Posts: 396	Re: Wheel hop issues Mark replaced all my bushings a couple of years ago with the purple poly ones. I'll take a look at the shock bushings. Although converted to coilovers, those bushings may be originals. Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app __________________ 1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige

01-07-2025	#8
Karl Join Date: May 2013 Location: Chicago Posts: 982	Re: Wheel hop issues I swapped my entire rear, less the batwing to super pro bushings. Much better than traditional rubber or polyurethane.

01-07-2025	#9
Subfixer Join Date: Sep 2018 Location: Groton, CT Posts: 396	Re: Wheel hop issues Just checked my build sheet... All bushings were replaced with Super Pro bushings, front and rear. __________________ 1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige

01-07-2025	#10
Karl Join Date: May 2013 Location: Chicago Posts: 982	Re: Wheel hop issues I asked artificial intelligence on Google for the heck of it..... AI Overview +1 Wheel hop in a rear-wheel drive (RWD) car can be caused by a number of factors, including: Suspension damage: Suspension damage can be caused by hitting potholes or other road hazards, worn components, or loose wheel nuts. Tire issues: Tires that are underinflated, unevenly worn, or imbalanced can cause wheel hop. Axle twisting: Wheel hop occurs when the axle twists, or "winds up," and then the tire breaks loose and snaps back. This constant twisting and unwinding causes the tire to bounce. Power levels: If the tire can't handle the amount of power being applied, wheel hop can occur. Bushing deflection: Bushing deflection can cause wheel hop. Shocks: Using the wrong shocks can cause wheel hop.