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View Poll Results: Poly mount harness
70 rated poly - improves performance, limits vibration
77.78%
95 rated poly - very rigid and lots of vibration fealt.
22.22%
A slight softer poly = don't want to feel any vibration.
11.11%
Something inbetween.
0
0%
Multiple Choice Poll. Voters: 9. You may not vote on this poll

Poly Mounts - how stiff ??

Old Feb 21, 2014 | 04:27 PM
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x11 nut's Avatar
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Default Poly Mounts - how stiff ??

So as a follow up to a set of lower poly mounts, I'd like to get an idea of what hardness of poly mount everyone is looking for.

I'm looking at two options;

1) 70 rated poly, which will be a huge improvement over stock but limit how much powertrain vibration is felt.

2) 95 rated poly, which is incredibly hard but transfers most powertrain vibration = your car will feel like its shaking all the time.

Please take the poll !!
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Old Feb 21, 2014 | 07:49 PM
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The mounts I have already fabbed are 95a.this engine is incredibly smooth. Not to mention the subframe is isolated by rubber bushings anyway.
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Old Feb 22, 2014 | 08:12 AM
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cool, I'm sure its not crazy like a high cam SBC but some folks just don't like any vibration and just looking for better durability.. Good news is once the molds are made, we should be able to get any hardness poly.
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Old Feb 22, 2014 | 09:59 AM
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This is excellent, x11, thanks a bunch for going through the trouble!
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