Drag Racing Tech
Sponsored by:
Sponsored by:

Motor Mounts....Solid or Poly?

Thread Tools
 
Search this Thread
 
Old 03-09-2012, 04:51 PM
  #1  
10 Second Club
Thread Starter
iTrader: (8)
 
deerslayinrednek's Avatar
 
Join Date: Jan 2009
Location: Central, PA
Posts: 486
Likes: 0
Received 0 Likes on 0 Posts

Default Motor Mounts....Solid or Poly?

Which motor mounts are everyone running and what are the benefits of solid mounts?......
The car is a track car that does see some street time but that's not important.....It has a poly trans mount and the suspension is all rod ends so comfort isn't a big concern
Old 03-09-2012, 05:33 PM
  #2  
9 Second Club
iTrader: (46)
 
subhumanzz's Avatar
 
Join Date: May 2006
Location: Fredericksburg, VA
Posts: 1,037
Likes: 0
Received 0 Likes on 0 Posts

Default

i have the motorvative solid mounts, poly trans.
Old 03-09-2012, 07:04 PM
  #3  
10 Second Club
Thread Starter
iTrader: (8)
 
deerslayinrednek's Avatar
 
Join Date: Jan 2009
Location: Central, PA
Posts: 486
Likes: 0
Received 0 Likes on 0 Posts

Default

Also I read that the Spohn solid mounts raise the engine up a little....why is that?
Old 03-10-2012, 04:38 AM
  #4  
9 Second Club
iTrader: (10)
 
Nitroused383's Avatar
 
Join Date: Aug 2008
Location: Washington
Posts: 2,817
Likes: 0
Received 6 Likes on 4 Posts

Default

One thing to keep in mind if you have solid mounts you may have to undo them to get the transmission out. With the poly mounts there is just enough flex to wiggle the trans out.
Old 03-10-2012, 05:00 AM
  #5  
9 Second Club
iTrader: (4)
 
INTENESS's Avatar
 
Join Date: Jun 2004
Location: Long Island,NY
Posts: 738
Likes: 0
Received 0 Likes on 0 Posts

Default

I have had both,I had the UMI solid mounts same height as the polys.They fit perfect didnt rasie it up the engine at all that i noticed.
Old 03-10-2012, 05:47 AM
  #6  
Launching!
iTrader: (3)
 
Outlaw666's Avatar
 
Join Date: Oct 2011
Location: Bay View, WI
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Nitroused383
One thing to keep in mind if you have solid mounts you may have to undo them to get the transmission out. With the poly mounts there is just enough flex to wiggle the trans out.
Ive removed them without taking the mounts off no problem...but if it was removed on the ground I can see how having some wiggle room would be helpful.
Old 03-11-2012, 03:55 PM
  #7  
10 Second Club
Thread Starter
iTrader: (8)
 
deerslayinrednek's Avatar
 
Join Date: Jan 2009
Location: Central, PA
Posts: 486
Likes: 0
Received 0 Likes on 0 Posts

Default

Im not really concerned about getting the trans out. I like the design over the others especially the 10lb weight saving but I'm just concerned with the extra height and my exhaust hitting
Old 03-11-2012, 11:57 PM
  #8  
9 Second Club
iTrader: (10)
 
Nitroused383's Avatar
 
Join Date: Aug 2008
Location: Washington
Posts: 2,817
Likes: 0
Received 6 Likes on 4 Posts

Default

Originally Posted by Outlaw666
Ive removed them without taking the mounts off no problem...but if it was removed on the ground I can see how having some wiggle room would be helpful.
Really, what transmissions? There is no way I could remove / install my t56 with out angling the engine a decent amount. You wouldn't be able to get the rear end of the transmission up high enough with out hitting the tunnel to slide it in.
Old 03-12-2012, 02:29 PM
  #9  
Launching!
iTrader: (3)
 
Outlaw666's Avatar
 
Join Date: Oct 2011
Location: Bay View, WI
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Nitroused383
Really, what transmissions? There is no way I could remove / install my t56 with out angling the engine a decent amount. You wouldn't be able to get the rear end of the transmission up high enough with out hitting the tunnel to slide it in.
th400...Ive done a few t56 swaps as well(stock & poly only)did you take your tranny out completely intact?
Old 03-12-2012, 02:48 PM
  #10  
9 Second Club
iTrader: (10)
 
Nitroused383's Avatar
 
Join Date: Aug 2008
Location: Washington
Posts: 2,817
Likes: 0
Received 6 Likes on 4 Posts

Default

No I unbolt it from the bell housing first, I've done it several times with poly mounts but don't see it possible with solid mounts.
Old 03-13-2012, 12:04 AM
  #11  
10 Second Club
iTrader: (27)
 
TurboStangJON's Avatar
 
Join Date: Mar 2009
Location: Kissimmee, FL / Vienna, VA
Posts: 810
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Nitroused383
No I unbolt it from the bell housing first, I've done it several times with poly mounts but don't see it possible with solid mounts.
I have done it a couple of times on a friends car with solids. 5 foot 1/2 drive extension with a 3/8 head and a Snap-on swivel impact socket. That extension has saved my *** in some tight spots.
Old 03-13-2012, 12:15 AM
  #12  
Teching In
iTrader: (1)
 
jonnyv713's Avatar
 
Join Date: Feb 2012
Posts: 43
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by TurboStangJON
I have done it a couple of times on a friends car with solids. 5 foot 1/2 drive extension with a 3/8 head and a Snap-on swivel impact socket. That extension has saved my *** in some tight spots.
Only way to do it.
Old 04-08-2012, 08:02 PM
  #13  
10 Second Club
Thread Starter
iTrader: (8)
 
deerslayinrednek's Avatar
 
Join Date: Jan 2009
Location: Central, PA
Posts: 486
Likes: 0
Received 0 Likes on 0 Posts

Default

Just an update for future people who search.....I went with the Spohn Solid mounts and love them. The exhaust doesn't bang the floor anymore and the car feels solid, money well spent!
Old 04-08-2012, 11:46 PM
  #14  
TECH Senior Member
iTrader: (28)
 
studderin's Avatar
 
Join Date: Nov 2005
Location: Rochester, NY
Posts: 5,556
Likes: 0
Received 6 Likes on 6 Posts

Default

I noticed my poly were heavy, But soilds are really 10pounds lighter???
Old 04-09-2012, 04:38 AM
  #15  
TECH Addict
iTrader: (57)
 
99'CajunFirehawk157's Avatar
 
Join Date: Jun 2007
Location: USA
Posts: 2,771
Received 18 Likes on 13 Posts

Default

Originally Posted by studderin
I noticed my poly were heavy, But soilds are really 10pounds lighter???
Its not that the polys are heavy, the factory pedastals and clam shells are...
Old 04-09-2012, 06:51 AM
  #16  
TECH Senior Member
iTrader: (28)
 
studderin's Avatar
 
Join Date: Nov 2005
Location: Rochester, NY
Posts: 5,556
Likes: 0
Received 6 Likes on 6 Posts

Default

OK.


I wonder what just the stock clam shell metal with the poly in them weights???
Old 04-09-2012, 10:11 AM
  #17  
On The Tree
iTrader: (1)
 
TPIIROC's Avatar
 
Join Date: Sep 2005
Location: MN
Posts: 132
Likes: 0
Received 0 Likes on 0 Posts

Default

So is the only gain weight?
Old 04-09-2012, 12:54 PM
  #18  
10 Second Club
Thread Starter
iTrader: (8)
 
deerslayinrednek's Avatar
 
Join Date: Jan 2009
Location: Central, PA
Posts: 486
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by studderin
I noticed my poly were heavy, But soilds are really 10pounds lighter???
mine were 8.8lbs lighter for the pair going from rubber mounts to spohn solids
Old 04-09-2012, 12:56 PM
  #19  
12 Second Club
iTrader: (51)
 
projectX's Avatar
 
Join Date: May 2010
Location: MI
Posts: 1,008
Likes: 0
Received 0 Likes on 0 Posts

Default

I did Poly and love em'
Old 04-09-2012, 04:19 PM
  #20  
9 Second Club
iTrader: (33)
 
ramairws6's Avatar
 
Join Date: Sep 2004
Location: Hicksville MN!
Posts: 1,996
Likes: 0
Received 83 Likes on 59 Posts
LS1Tech 20 Year Member
Default

I have the poly on poly engine/trans and it works great. Been thinking of going solid. Anybody have a good comparison? I know everyone's idea of good or bad vibrations are different but help me out here!??


Quick Reply: Motor Mounts....Solid or Poly?



All times are GMT -5. The time now is 11:30 PM.