Broken Motor Mounts
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,444
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Broken Motor Mounts
I didn't think that it was possible to break "Energy Suspension" poly locking motor mounts. My Hooker supercomp headers saved me from real problems. I was doing some max effort launches and my steering became very difficult when I had my foot on the floor. The motor rotated up and the header pipe would wedge against the steering rag joint.
I was just screwing off because the motor is a couple of years old and I was going to pull it and refresh it this winter
So I stopped by Summit racing and bought Morroso solids
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,444
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
They are a PITA to change with the motor installed. So it might have been telling me to just pull the motor out now.
I think that the 335 rear tires hook too hard when conditions are just right
I think that the 335 rear tires hook too hard when conditions are just right
Terrorizing Orange Cones
Joined: Oct 2007
Posts: 2,572
Likes: 17
From: Northern CO
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Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,444
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
In Energy Suspensions defense. The motor mounts are about two years old and a 5 speed tranny with a lite weight flywheel is probably really abusive.
Instructor
Joined: Feb 2006
Posts: 118
Likes: 25
From: Killearn Scotland
gkull,
You are following the exact issue I had a couple of years ago.
I bust a 6 month old Poly mount and even before it let go I used to have problems with my supercomp headers contacting the rag joint under hard acceleration.
I moved to solids and wish I had done so years ago.
I don't notice any downside or increase in vibration in the car, but it feels great when you hit the gas. I know that there is absolutely no effect on power, but everything feels "tighter" and more "alive". Sounds naff, I know, but swap to solid mounts and you'll see what I mean.
I still have a rubber mount on the transmission (TKO600) and have run this way for about 2 years with no problems.
You are following the exact issue I had a couple of years ago.
I bust a 6 month old Poly mount and even before it let go I used to have problems with my supercomp headers contacting the rag joint under hard acceleration.
I moved to solids and wish I had done so years ago.
I don't notice any downside or increase in vibration in the car, but it feels great when you hit the gas. I know that there is absolutely no effect on power, but everything feels "tighter" and more "alive". Sounds naff, I know, but swap to solid mounts and you'll see what I mean.
I still have a rubber mount on the transmission (TKO600) and have run this way for about 2 years with no problems.
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
I've broken OE mounts before, but this surprises me. In any event, the Moroso solids have served me well for many years, and I will even more highly recommend them for high-perf applications from now on.
FWIW, in addition to a spreader, upgrading to solid mounts stiffens up the front end further still.
FWIW, in addition to a spreader, upgrading to solid mounts stiffens up the front end further still.
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,444
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
Needless to say, that was just the beginning of the fun with that build. I also ended up with a 2' diameter ball of wire cleaning up electrical issues. That's what I get for breaking my own rules
Advanced
Joined: Dec 2010
Posts: 92
Likes: 0
From: Tucson Az
Anyone post a link for the Moroso solid mounts?
Edit: Would these be the ones? http://www.jegs.com/i/Moroso/710/625...oductId=744093
Edit: Would these be the ones? http://www.jegs.com/i/Moroso/710/625...oductId=744093
Last edited by Cactus Dave; Nov 21, 2011 at 11:33 PM.
Thread Starter
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,444
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Burning Brakes
Joined: May 2009
Posts: 1,232
Likes: 6
From: Tucson AZ
St. Jude Donor '12
Anyone post a link for the Moroso solid mounts?
Edit: Would these be the ones? http://www.jegs.com/i/Moroso/710/625...oductId=744093
Edit: Would these be the ones? http://www.jegs.com/i/Moroso/710/625...oductId=744093
Those are the ones I've been using through the years.
Although I don't use any "pads" with mine.