[Z06] Need help curing wheel hop
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,894
Likes: 12
From: Fort Myers FL
Cruise-In X Veteran
Need help curing wheel hop
My 04 Z has horrible wheel hop. Doesn't matter if from a stop or a rolling start. It hops through 1st and through 2nd. I'm running stock size tires on NT05's. Any advice or knowledge is appreciated.
Safety Car
Joined: Dec 2009
Posts: 4,363
Likes: 430
From: Birmingham Al
Let off the gas .. Had to say that .. LOL... My 04 Z just spins no wheel hop ??? also running street tires .I'm sure people on here knows what to do about that ... after a retune on my 04 will be going to a set of Nittos 555Rs my self .. Mine may start hoping also with better traction ..??
Melting Slicks
Joined: Nov 2008
Posts: 2,938
Likes: 65
From: Rochester Hills MI
does it hop as high as the pic in your sig? that's gotta be the most intense wheel hop I've seen! 
On a more serious note, trans and motor mounts will help tremendously. so will poly control arm and sway bar bushings.
The problem with wheel hop is the suspension gets preloaded and then releases. All those rubber bushings and mounts allow so much movement that it basically acts like a spring. Stiffen them up and get rid of the ability for things to bind up, and you are on the right track to reducing wheel hop.
On a more serious note, trans and motor mounts will help tremendously. so will poly control arm and sway bar bushings.
The problem with wheel hop is the suspension gets preloaded and then releases. All those rubber bushings and mounts allow so much movement that it basically acts like a spring. Stiffen them up and get rid of the ability for things to bind up, and you are on the right track to reducing wheel hop.
Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,894
Likes: 12
From: Fort Myers FL
Cruise-In X Veteran
does it hop as high as the pic in your sig? that's gotta be the most intense wheel hop I've seen!
On a more serious note, trans and motor mounts will help tremendously. so will poly control arm and sway bar bushings.
The problem with wheel hop is the suspension gets preloaded and then releases. All those rubber bushings and mounts allow so much movement that it basically acts like a spring. Stiffen them up and get rid of the ability for things to bind up, and you are on the right track to reducing wheel hop.
On a more serious note, trans and motor mounts will help tremendously. so will poly control arm and sway bar bushings.
The problem with wheel hop is the suspension gets preloaded and then releases. All those rubber bushings and mounts allow so much movement that it basically acts like a spring. Stiffen them up and get rid of the ability for things to bind up, and you are on the right track to reducing wheel hop.
Any good vendors on here for a new set of bushing?
Melting Slicks
Joined: Nov 2008
Posts: 2,938
Likes: 65
From: Rochester Hills MI
I haven't installed a bushing kit yet, so I don't have advice for you there as far as brands go. If your pockets are really deep, go with delrin. Otherwise poly will be fine, but you will need to install zerk fittings in the control arms to be able to re-grease the bushings with poly.
As far as the shocks are concerned, the 2004 z06 has pretty much the best non-adjustable shocks that you can get for a c5.
As far as the shocks are concerned, the 2004 z06 has pretty much the best non-adjustable shocks that you can get for a c5.
Burning Brakes
Joined: Jul 2009
Posts: 976
Likes: 53
From: smyrna de
I run stock size nt05 and get zero wheel hop. Sounds like u have to much pressure. The nt05 like to run on the low side. I usually run 29psi front, 27psi rear cold... Even on autocross/hpde events I'm under 30psi to start.
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you have good tires so that probably isn't causing the hop... tire pressure could be a contributing factor but I would lean more towards replacing the motor and diff mounts with something more rigid like pfadt's stuff... mine hopped when it was stock but I changed tires and motor/diff mounts and the hop has disappeared
Melting Slicks
Joined: Apr 2003
Posts: 2,150
Likes: 6
From: NS
The problem with wheel hop is the suspension gets preloaded and then releases. All those rubber bushings and mounts allow so much movement that it basically acts like a spring. Stiffen them up and get rid of the ability for things to bind up, and you are on the right track to reducing wheel hop.
http://store.afecontrol.com/afe-cont...-97-04-orange/
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Thread Starter
Drifting
Joined: Nov 2006
Posts: 1,894
Likes: 12
From: Fort Myers FL
Cruise-In X Veteran
I do have a new trans mount in there. Was installed 6 months ago. Could it also be related to the active handling system? I plan to do some testing this weekend to try a few of the suggestions here.
Melting Slicks
Joined: Nov 2008
Posts: 2,938
Likes: 65
From: Rochester Hills MI
definitely not related to the active handling system. Even brand new stock mounts will have the same problem. What you need to do is upgrade to urethane mounts from the stock rubber. I use the Hinson motorsports mounts, and they are great. They even make motor mounts that are 3/8" shorter than the stock mounts bringing down the CG height.
Last edited by SaberD; Oct 30, 2015 at 09:39 AM.
Melting Slicks
Joined: Aug 2011
Posts: 2,423
Likes: 200
From: Atlanta GA
I had wheel hop when I was running Pireilli P-Zeros, same symptoms as what you are experiencing. Switched to Michelin Pilot Super Sports, problem solved.
Last edited by bikeriderga; Oct 30, 2015 at 11:31 PM.
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definitely not related to the active handling system. Even brand new stock mounts will have the same problem. What you need to do is upgrade to urethane mounts from the stock rubber. I use the Hinson motorsports mounts, and they are great. They even make motor mounts that are 3/8" shorter than the stock mounts bringing down the CG height.
... personally I am not a fan of hinson's diff mount... it is better than stock I'm sure but I much prefer the design of the pfadt/hoosier mount since it runs the length of the cradle and applies pressure on both ends which keep the trans and diff from moving... be careful running the lower motor mounts if you ever decide to use an oversized balancer... I have seen guys have to clearance their cradle because the balancer was so close that it would either make contact or they didn't have enough room for the belt to fit between the cradle and balancer... weren't those mounts designed so the fast 102 would clear the cowl?... I'm not totally sure but I think I read that somewherent05's are not crappy tires though... in my opinion he should start with the motor and diff mounts to keep the drivetrain stable
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Melting Slicks
Joined: Nov 2008
Posts: 2,938
Likes: 65
From: Rochester Hills MI
... personally I am not a fan of hinson's diff mount... it is better than stock I'm sure but I much prefer the design of the pfadt/hoosier mount since it runs the length of the cradle and applies pressure on both ends which keep the trans and diff from moving... be careful running the lower motor mounts if you ever decide to use an oversized balancer... I have seen guys have to clearance their cradle because the balancer was so close that it would either make contact or they didn't have enough room for the belt to fit between the cradle and balancer... weren't those mounts designed so the fast 102 would clear the cowl?... I'm not totally sure but I think I read that somewhereAs far as the trans mounts go, I totally agree that the pfadt/hoosier mounts are far superior for reducing wheel hop, but they are also more than twice the cost. It also adds some weight while the hinson does not. The hinson one is a good buy for the money, and a good route if you are going for light weight.
Burning Brakes
Joined: Aug 2006
Posts: 956
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From: Eastern PA
Good luck to you.
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Yeah the lower mounts were designed to allow a couple styles of intake manifolds to clear the cowl, but an added benefit is the lowered cg.
As far as the trans mounts go, I totally agree that the pfadt/hoosier mounts are far superior for reducing wheel hop, but they are also more than twice the cost. It also adds some weight while the hinson does not. The hinson one is a good buy for the money, and a good route if you are going for light weight.
As far as the trans mounts go, I totally agree that the pfadt/hoosier mounts are far superior for reducing wheel hop, but they are also more than twice the cost. It also adds some weight while the hinson does not. The hinson one is a good buy for the money, and a good route if you are going for light weight.
Burning Brakes
Joined: Aug 2006
Posts: 956
Likes: 12
From: Eastern PA
Motor mounts
https://www.hinsonsupercars.com/p-12...vette-gto.aspx
Trans mount
https://www.hinsonsupercars.com/p-13...-corvette.aspx
https://www.hinsonsupercars.com/p-12...vette-gto.aspx
Trans mount
https://www.hinsonsupercars.com/p-13...-corvette.aspx
Last edited by ezrider4u2; Nov 1, 2015 at 07:46 AM.