the beauty of solid engine mounts...
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Originally Posted by MotorHead
I thought I would be hearing horror stories of bad vibration etc. not so though apparently, I think I will swap mine out, what about using the stock OEM tranny mount with the solid motor mounts ?
Safety Car
Joined: Oct 1999
Posts: 4,101
Likes: 10
From: NorCal
I must have the poly mounts in mine. No matter what I do I can't get the engine to move at all without a load on it, and just barely if I load it against the brake. I do feel the a fair amount of vibration, but not enough to be a bother.
Hans
Hans
Burning Brakes
Joined: Feb 2006
Posts: 1,024
Likes: 1
From: AL
i've had problems with vibrations using two solid mounts on some cars. in those cases, i went with one solid on the driver side.
i'm trying the locking poly mounts on the latest project; expect it to work okay.
all were either dd or street/little strip
i'm trying the locking poly mounts on the latest project; expect it to work okay.
all were either dd or street/little strip
Safety Car
Joined: Aug 2000
Posts: 3,909
Likes: 26
From: Clymer PA
Originally Posted by norvalwilhelm
I don't see any problem with that but I do not think solid all around is right either. I always thought you needed a flexible tranny mount.
Tech Contributor
Joined: Jun 2004
Posts: 20,934
Likes: 962
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
Originally Posted by norvalwilhelm
I don't see any problem with that but I do not think solid all around is right either. I always thought you needed a flexible tranny mount.
I'm of the same philosophy. Solid mounts on all three locations essentially turns the engine/transmission into a giant torsion bar connecting the front 2/3 of the wheelbase. That scares me. We all are familiar with the less than ideal torsional stiffness of C3 frames, and this looks like a potentially expensive way to stiffen up the frame.
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
Originally Posted by 69427
I'm of the same philosophy. Solid mounts on all three locations essentially turns the engine/transmission into a giant torsion bar connecting the front 2/3 of the wheelbase. That scares me. We all are familiar with the less than ideal torsional stiffness of C3 frames, and this looks like a potentially expensive way to stiffen up the frame.
(Except for the crossmember where I have some very cool custom aluminum bushings, my engine, transmission and differential will all be mounted with poly. Should be a good compromise between stiffness and shock absorption.)
Last edited by I'm Batman; Nov 29, 2006 at 03:41 PM.
