Bump- steer on !995.
Thread Starter
Racer
Joined: Mar 2014
Posts: 253
Likes: 119
From: North Branch Michigan
Bump- steer on !995.
I have searched the forum, but have not found a thread that is quit on point. I have a 95' base C4 coupe. When the car hits broken surfaces, I get some pretty good bump-steer. If I am in a turn, I get real serious bump-steer...front end wants to walk to the outside big-time! You can feel a real wiggle in the steering wheel when this happens. The result is a real sense of "not fully in control of the car's future".
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
Safety Car
Joined: Aug 2009
Posts: 3,751
Likes: 275
From: Melbourne, Victoria, Australia
I have searched the forum, but have not found a thread that is quit on point. I have a 95' base C4 coupe. When the car hits broken surfaces, I get some pretty good bump-steer. If I am in a turn, I get real serious bump-steer...front end wants to walk to the outside big-time! You can feel a real wiggle in the steering wheel when this happens. The result is a real sense of "not fully in control of the car's future".
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
Keep the camber settings standard but you can help counteract wandering by more positve caster, I run 6 deg positive caster and that has helped too.
Here is a link for you.
http://www.ecklerscorvette.com/corve...4.html?reset=1
Last edited by gerardvg; Jun 25, 2014 at 01:50 AM. Reason: Added link
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
You might also take a look and see if your shocks are bad.
When they go, they can make it feel really bad over bumps (unstable, skipping/hopping on bumps, vibration, steering wheel oscillation, etc) . If shocks, you may also see some cupping on the tires.
When they go, they can make it feel really bad over bumps (unstable, skipping/hopping on bumps, vibration, steering wheel oscillation, etc) . If shocks, you may also see some cupping on the tires.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
I have searched the forum, but have not found a thread that is quit on point. I have a 95' base C4 coupe. When the car hits broken surfaces, I get some pretty good bump-steer. If I am in a turn, I get real serious bump-steer...front end wants to walk to the outside big-time! You can feel a real wiggle in the steering wheel when this happens. The result is a real sense of "not fully in control of the car's future".
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
Bingo.
Additionally, I added an RD Cross Brace to mine to help reduce front end "Jitters" when encountering a bump during turns. It helped.
Pro
Joined: Mar 2009
Posts: 702
Likes: 259
From: Middletown Delaware
I have searched the forum, but have not found a thread that is quit on point. I have a 95' base C4 coupe. When the car hits broken surfaces, I get some pretty good bump-steer. If I am in a turn, I get real serious bump-steer...front end wants to walk to the outside big-time! You can feel a real wiggle in the steering wheel when this happens. The result is a real sense of "not fully in control of the car's future".
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
New tires, 85,000 miles. Car tracks and handles perfect otherwise. No clicks or catches in the steering. No slack in steering, and no rack leaks.
The only "play" I can spot appears to be the rack end bushings going to the tie rods. It appears to be equal to both sides, but is only felt when hitting bumps (the bigger, the worse, and in turns even more so).
Replacing the rack looks like a $750 repair, so I am looking for any input I can get before I pull the trigger on that deal. HELP.
I have also tightened up the ends on the steering shaft, which was a large improvement! But the car feels so upset on bumps in turns, there has to be more. Any help would be Very appreciated.This is my first Corvette, but I have to believe this is NOT how they handle. If this were a normal car, I would think the steering damper was defective.
Kelly
http://forums.corvetteforum.com/c4-g...-c4-vette.html
Last edited by Ozzstar; Jun 27, 2014 at 09:51 PM.
Thread Starter
Racer
Joined: Mar 2014
Posts: 253
Likes: 119
From: North Branch Michigan
Checked system today. Front actuators act as should when tested off-shock. I failed to mention that I have the FX3 set up. Some evidence of oil leaks, and no codes. Found a pair of fronts in stock (all the pain I want to deal with right now), and pulled the trigger at $190.08 each, free shipping. Should have them on beginning of next week. Also added a small bottle of Lucas Steering Rack product as an abundance of caution(steering already feels much better). I will let you know how things work out. Thanks for the feedback.
Kelly
Kelly
Last edited by Mortsciguy; Jun 26, 2014 at 10:58 PM. Reason: FX3 update to info.
Team Owner
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Thread Starter
Racer
Joined: Mar 2014
Posts: 253
Likes: 119
From: North Branch Michigan
Thank you all for your input. When the old Bilsteins were removed, they proved to be absolutely worn out! Installed new selective ride control Bilsteins. Wow! All is well, once again.
Kelly
Kelly
Le Mans Master
Joined: Apr 2000
Posts: 5,713
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From: Manassas VA