Poluyurethane Bushings
05-19-2012, 07:39 AM
#1
Safety Car
Thread Starter
Poluyurethane Bushings
After all of my issues with poly bushings I decided to measure different bushings with my durometer. The results vary depending on which company made the bushing. The yellow one is what Energy Suspension created for me after I destroyed the red one. Just for a comparison I checked my Michelin street tires. They measured 75 on this scale.
That's a huge difference in hardness. Keep in mind that both the yellow and red ones are both from Energy Suspension. They can make the bushings in different hardness. Vette Brakes only has the one size fits all.
Richard Newton
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That's a huge difference in hardness. Keep in mind that both the yellow and red ones are both from Energy Suspension. They can make the bushings in different hardness. Vette Brakes only has the one size fits all.
Richard Newton
05-19-2012, 11:35 AM
#3
Melting Slicks
After all of my issues with poly bushings I decided to measure different bushings with my durometer. The results vary depending on which company made the bushing. The yellow one is what Energy Suspension created for me after I destroyed the red one. Just for a comparison I checked my Michelin street tires. They measured 75 on this scale.
That's a huge difference in hardness. Keep in mind that both the yellow and red ones are both from Energy Suspension. They can make the bushings in different hardness. Vette Brakes only has the one size fits all.
Richard Newton
Facebook
That's a huge difference in hardness. Keep in mind that both the yellow and red ones are both from Energy Suspension. They can make the bushings in different hardness. Vette Brakes only has the one size fits all.
Richard Newton
05-19-2012, 03:54 PM
#4
Safety Car
Thread Starter
Yes
Richard
Richard
05-19-2012, 08:50 PM
#5
Safety Car
Interesting and good info to know. FYI, I have your auto-x performance handbook, great read.
Someday the 93 might have the poly bushings when I decide to go to BSP.
Someday the 93 might have the poly bushings when I decide to go to BSP.
05-19-2012, 09:06 PM
#6
Burning Brakes
05-20-2012, 05:58 AM
#8
Safety Car
Thread Starter
No. I don't have a reading for Delrin. I'm hoping that someone here can check it out. I know some of the vendors can do it. We'll see if they step up to the plate here.
Richard
Richard
05-20-2012, 03:14 PM
#9
Drifting
I know they're not suspension bushings, but do you think they make those little rubber bushings inside the driver / passenger door hinges out of polyurethane? Mine have gotten old and the doors flap shut on me whenever I'm trying to get out. 
05-20-2012, 03:28 PM
#10
Safety Car
Thread Starter
I haven't got a clue on that one. Have you checked with Corvette Central?
Richard
Richard
05-26-2012, 04:35 PM
#11
Le Mans Master
I saw your post later in AutoX/RR that would be great to know what their delrin tests out at.
I did find this:
Teflon AF
Hardness (Rockwell) - M85, R115
Hardness (Shore D) - 83
Hardness (Shore A) - OOR I would assume
http://www.plasticsintl.com/datashee...lrin_100AF.pdf
Looks like the yellow polyurethane would be about a 50 vs delrin at 85 on the D scale.
I did find this:
Teflon AF
Hardness (Rockwell) - M85, R115
Hardness (Shore D) - 83
Hardness (Shore A) - OOR I would assume
http://www.plasticsintl.com/datashee...lrin_100AF.pdf
Looks like the yellow polyurethane would be about a 50 vs delrin at 85 on the D scale.