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Old 10-25-2007, 07:07 AM
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JCoop JCoop is offline
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Join Date: Feb 2006
Location: Glenwood Landing or Southampton, NY
Cobra Make, Engine: Superformance, FRP460 Big Block
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Quote:
Originally Posted by carmine
Interesting what you mention about the mounts, had that same problem with the right side, then changed to poly mounts from Olthoffs but vibration still there. What do you mean by you ( welded the mounts ). regards Carmine
I welded the broken piece on the sidepipe mount, then I bent a cut piece of .5" round steel rod to the same angle as the sidepipe mount, then welded that to the underside of the mount to reinforce it. Ground it down to finish it and painted it hi temp black. Make sure you use a welding blanket to protect the door and sill paint...

Actually, the new mounts transmit more of the engine resonance now than it did before. It's throughout the entire range, however. I feel it more on the seatback and can get annoying on a long drive. It got rid of a drone I had between 2400 and 3500, though. I suspect that was the broken motor mount. I guess it's a trade off for the crispier feel and seemingly more immediate response I get.
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