solid motor mounts - Team Camaro Tech
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post #1 of 6 (permalink) Old May 5th, 00, 08:11 AM Thread Starter
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do any of you out there run solid motor mounts on the street? my question is, i am going to run solid's with my big block, but when looking through a vendor book(competition engineer), they tell you if you are going to run them on the street, to use a stock tranny mount. well, i was always told if you run solid's in the front, you have to run one with the tranny.
but in the next paragraph,in the magazine, they tell you that you have to run solid with solid. what's going on?
has anyone ever run solid mounts with a stock tranny mount? i'm getting ready to pull the engine to install a new cam, and i have a solid tranny mount waiting to be put in, but should i use the stock one, like they say to?
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post #2 of 6 (permalink) Old May 5th, 00, 09:30 AM
David Pozzi
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Location: Central California, USA
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I ran solid engine mounts for over 10 years on my 67. I drove on the street and autocrossed it. I noticed that there was a little more vibration with a factory balanced engine. When I installed a custom balanced 350 it was very smooth.
I boxed in the factory engine mount by welding plates to each side over the rubber. I broke the factory rubber mount twice. It was non interlocking. And no interlocking mount was available at the time.
I wouldn't run a solid rear mount because it may put stress on the trans case and cause a crack. The chassis is going to twist when going into driveways etc.
Another thing is solid mounts will tend to make the motor mounts and frame mounts bolts come loose due to added vibration. Even though I couldn't feel it the drivers side frame mount bolts came loose. I would recomend going to nylock nuts.
I'm going to put energy suspension engine and trans mounts on the car now.

The older I get, the faster I was!
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post #3 of 6 (permalink) Old May 5th, 00, 12:19 PM
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I'm with david, the Energy Suspension polyurethane mounts are the best of both worlds.

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post #4 of 6 (permalink) Old May 5th, 00, 04:21 PM
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I read somewhere that a good idea for the street was to use one solid and one rubber. The solid takes away much of the twist while the rubber takes away the vibration. It was interesting.
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post #5 of 6 (permalink) Old May 6th, 00, 02:22 PM
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i run a solid mount on the left and a rubber on the right with a stock rubber transmission mount, works fine for me, and i have never had any bolts come loose. my 2 cents

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post #6 of 6 (permalink) Old May 8th, 00, 12:12 AM Thread Starter
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thanks guy's,
i think i'm going to keep the solids in the front and run a stock tranny mount. if worse comes to worse, i'll put in a front motor mount plate or weld the frame mounts.
i just backed out the car for the first time with the new rear suspension. man does it looked good. my little guy and i washed it. there was probably and inch of dirt on it. got some pictures of it. i'm going to see about putting them on a disc and see if i can send in some of the pic's.
later and thanks again.
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