Bushing Materials, Pros and Cons of Each ???? |
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Bushing Materials, Pros and Cons of Each ???? |
914forme |
Sep 5 2006, 07:14 AM
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#1
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None |
Okay I have a swaybar design done. I am thinking about bushing materials. Currently have Weltmeister Poly Race hardness. I smoothed the arm bores etc.. to make the fit better and not grab hard. But they still grab!!!!
So up on the list I need to know experiences, etc.... with each. Stock rubber - works for a street car. Poly - easy to find, seems to grab like a glue gun on steroids. Delrin - easy to find now, self lubricating, can be custom machined, needs to be replaced more often? Poly/ Bronze - poly fills gaps the bronze gives you a bearing surface. $$$ Rollers - $$ / time or $$$$$ with out the time. So what seems to be the best way to go bang for the buck, my $$ tree is not that big. |
Mike T |
Sep 5 2006, 07:47 AM
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#2
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can't 'member Group: Members Posts: 378 Joined: 16-January 03 From: Brackney, PA Member No.: 161 |
I just replaced my old polygraphite with PolyBronze. I haven't driven on them yet but the rear moves like a well oiled hinge with no "sticktion"
The fronts move a bit firmer but are still smooth. I'm looking forward to my first autocross. Mike T |
Mueller |
Sep 5 2006, 10:50 AM
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#3
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
Okay I have a swaybar design done. I am thinking about bushing materials. Currently have Weltmeister Poly Race hardness. I smoothed the arm bores etc.. to make the fit better and not grab hard. But they still grab!!!! So up on the list I need to know experiences, etc.... with each. Stock rubber - works for a street car. Poly - easy to find, seems to grab like a glue gun on steroids. Properly installed (like how Racer Chris does it), they can work quite well Delrin - easy to find now, self lubricating, can be custom machined, needs to be replaced more often? I'd use Delrin AF, the brown stuff, has teflon impregnated in it and is a better bushing material Poly/ Bronze - poly fills gaps the bronze gives you a bearing surface. $$$ The poly acts as an noise/vibration isolator Rollers - $$ / time or $$$$$ with out the time. for the front, the bearings themselves are less than $50, it's the other parts that add up cost wise (must have a proper bearing surface on the a-arm, the sleeve is the most expensive part of the kit)...for the rear, the last time I priced the bearings themselves, they cost close to $30 each (4X)..if you have access to a lathe and the material, you could knock off a set I'd say in a day or less So what seems to be the best way to go bang for the buck, my $$ tree is not that big. If I didn't have the roller bearings myself, I'd give the poly/bronze a try if I had the money at the time...a decent compromise might be using polyurethane bushings with thrust needle bearings.... |
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