Has anyone read this?
Has anyone read this? Not sure if this is helpful or not but thought I'd post it up to see what you guys thought about it. I just ran across it while surfing the net...
http://hewsoninc.ca/mythinformation.htm
http://hewsoninc.ca/mythinformation.htm
On The Tree
Joined: Mar 2002
Posts: 174
Likes: 0
From: San Diego
Not sure if this is helpful or not but thought I'd post it up to see what you guys thought about it. I just ran across it while surfing the net...
http://hewsoninc.ca/mythinformation.htm
http://hewsoninc.ca/mythinformation.htm
Someone with some knowledge please chime in. Rubber or poly bushings?! 
On The Tree
Joined: Sep 2009
Posts: 179
Likes: 2
The only place I use Poly bushings is in sway bar bushings and on the end links. As soon as the grease is forced out from where it's supposed to be lubricating it begins to stick and bind. It's not the best to use in any rotational location. For example, my '77 Camaro started out with rubber bushings. It was fine till they wore out and they were replaced with Poly. If I lift the car off the ground and let the suspension droop, then drop it back on the ground, the car sits in a raised position due to the poly bushings binding. They're being swapped out with some Del-A-Lum's from Global West. Oh, and it's also why a lot of the new aftermarket performance trailing arms are being made with spherical ends now. Eliminate the binding.
Ask Sam Strano if he uses poly bushings anywhere on his f-bodies other than the sway bar endlinks or motor mounts.
Like I said, my car would squeak and rattle and handled shitty till the day I swapped out the poly/poly lower control arms and went back to the factory lca's and swapped in 1le bushings.
Like I said, my car would squeak and rattle and handled shitty till the day I swapped out the poly/poly lower control arms and went back to the factory lca's and swapped in 1le bushings.
Poly bushing LCA's are the worst suspension mod you can do unless all your racing is at the drag strip. 1LE LCA's are the best way to go. But they look ugly LOL. I ended up making my own using a 1LE bushing on one end and a Currie Johnney joint on the other. so far they are working great.
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The poly end, cracked open like an egg in the article, I believe, is the one I broke. Certainly looks like it and it retains the name I gave it when I took the picture. Wow ... that was over 10 years ago!
While that had everything to do with quality of workmanship and almost nothing to do with poly bushings, after that, I removed all the poly ended suspension components and either stayed with factory rubber or went rod ends.
I now have the Global West spherical bearing kit installed in my front lower A-Arms.
The transition to bind-free rod ends significantly altered my chassis set-up. I went up (WAY up) in spring rate. So binding does create issues.
While that had everything to do with quality of workmanship and almost nothing to do with poly bushings, after that, I removed all the poly ended suspension components and either stayed with factory rubber or went rod ends.
I now have the Global West spherical bearing kit installed in my front lower A-Arms.
The transition to bind-free rod ends significantly altered my chassis set-up. I went up (WAY up) in spring rate. So binding does create issues.
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Ask Sam Strano if he uses poly bushings anywhere on his f-bodies other than the sway bar endlinks or motor mounts.
Like I said, my car would squeak and rattle and handled shitty till the day I swapped out the poly/poly lower control arms and went back to the factory lca's and swapped in 1le bushings.
Like I said, my car would squeak and rattle and handled shitty till the day I swapped out the poly/poly lower control arms and went back to the factory lca's and swapped in 1le bushings.
I run 1LE rear control arm bushings (have them in stock most of the time). I run rubber as I am not allowed by rules I race under to run rod-ends or spherical bearings. I use delrin offset bushings in the upper front control arms.
Pretty much on the money. Urethane only on the bars, and Torque Arm bushing...
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Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
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www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
Rod-ends, Spherical bearings, and Roto-joints (which are just a type of spherical bearing) do no bind and stick... No Mythbusters needed here.
All anyone has to do is chuck the parts in a vice, stick a bar in the the sleeve like a bolt would go through and start twisting. You'll see, plainly and quickly, that a ball type joint allow rotation, urethane does not.
Of note, there is one type of sort of hybrid that is all urethane but uses a ball and socket type setup. In theory this is better than a standard urethane bushing. In practice it's not as good IMHO because urethane is sticky enough that it needs to be lubed when rubbing on metal. Having 3 urethane parts riding on each other is even worse.....
All anyone has to do is chuck the parts in a vice, stick a bar in the the sleeve like a bolt would go through and start twisting. You'll see, plainly and quickly, that a ball type joint allow rotation, urethane does not.
Of note, there is one type of sort of hybrid that is all urethane but uses a ball and socket type setup. In theory this is better than a standard urethane bushing. In practice it's not as good IMHO because urethane is sticky enough that it needs to be lubed when rubbing on metal. Having 3 urethane parts riding on each other is even worse.....
__________________
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
