Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Solid Motor Mounts

Thread Tools
 
Search this Thread
 
Old Jan 12, 2004 | 04:34 AM
  #1  
Cummins's Avatar
Thread Starter
TECH Enthusiast
20 Year Member
iTrader: (2)
 
Joined: Oct 2003
Posts: 724
Likes: 0
From: Oconomowoc, Wisconsin
Question Solid Motor Mounts

what are the advantages and disadvantages of these? besides weight.
Reply
Old Jan 12, 2004 | 05:07 PM
  #2  
WILWAXU's Avatar
TECH Senior Member
20 Year Member
iTrader: (6)
 
Joined: Nov 2001
Posts: 14,378
Likes: 1
From: League City, TX
Default

I suggest going with poly motor mounts unless your building a all out race car.
Reply
Old Jan 12, 2004 | 05:32 PM
  #3  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default

Im not happy with my poly motor mounts (will be getting rid of them)......they still let the engine torque up and smack close fit exhaust systems (my x-pipe) on the floor


I'm going to motor plates soon
Reply
Old Jan 12, 2004 | 09:46 PM
  #4  
slt200mph's Avatar
TECH Senior Member
20 Year Member
iTrader: (42)
 
Joined: Jul 2003
Posts: 7,067
Likes: 9
From: HOT'LANA, GAWJA
Default

Originally Posted by 2001CamaroGuy
Im not happy with my poly motor mounts (will be getting rid of them)......they still let the engine torque up and smack close fit exhaust systems (my x-pipe) on the floor


I'm going to motor plates soon
You can fabricate a motor torque strap to keep it from moving around..nothing to it.
Reply
Old Jan 13, 2004 | 11:06 AM
  #5  
Taspeed's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Jul 2002
Posts: 636
Likes: 2
From: Arlington, TX
Default

Solid mounts aren't a good idea on the street. You stand a good chance of cracking the block around where they bolt in due to the torque and bumpy roads. i don't advise it unless its a track only car. Poly mounts should work just fine. IMO
Reply
Old Jan 13, 2004 | 12:16 PM
  #6  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default

Originally Posted by Taspeed
Solid mounts aren't a good idea on the street. You stand
a good chance of cracking the block around where they bolt in due to the torque and bumpy roads. i don't advise it unless its a track only car. Poly mounts should work just fine. IMO

Madman told me this about using solid mounts that bolt in the factory motor mount location. He says they found that the stress (on high HP motors) on the side of the block in that small area was distorting the case and could cause block cracking.

His feeling (and mine) is that if you are going to go with a solid mouting of a motor, it needs to be a plate mount (front and mid) which will spread the load over the entire front and rear of the block thus preventing damage.
Reply
Old Jan 13, 2004 | 12:19 PM
  #7  
y2khawk's Avatar
TECH Veteran
iTrader: (5)
 
Joined: Nov 2001
Posts: 4,491
Likes: 1
From: Olmsted Falls, OH
Default

Originally Posted by 2001CamaroGuy
Madman told me this about using solid mounts that bolt in the factory motor mount location. He says they found that the stress (on high HP motors) on the side of the block in that small area was distorting the case and could cause block cracking.

His feeling (and mine) is that if you are going to go with a solid mouting of a motor, it needs to be a plate mount (front and mid) which will spread the load over the entire front and rear of the block thus preventing damage.
Exactly why i went with plates. 2 bent mounts and 2 cracked cylinder liners, no more of that
Reply
Old Jan 13, 2004 | 02:07 PM
  #8  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default

Originally Posted by y2khawk
Exactly why i went with plates. 2 bent mounts and 2 cracked cylinder liners, no more of that

hey...any update on the next set?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

 Michael S. Palmer
story-1

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-2

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-3

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-4

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-5

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-6

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-7

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-8

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-9

Top 10 Most Powerful Chevy Trucks Ever Made!

 
Old Jan 13, 2004 | 03:54 PM
  #9  
Spellbound's Avatar
11 Second Club
 
Joined: Feb 2002
Posts: 639
Likes: 0
From: Norcal
Default

Would the solid motor mounts(Spohn) be ok on an iron block?
Reply
Old Jan 13, 2004 | 04:37 PM
  #10  
Nickn20's Avatar
9 Second Club
 
Joined: Nov 2001
Posts: 1,445
Likes: 0
From: Bay Area, CA
Default

now you guys have me worried! I have madman solid mount, should I switch over to poly and TQ strap it? I don't wanna crack my block!
Reply
Old Jan 13, 2004 | 09:17 PM
  #11  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default

Originally Posted by Nickn20
now you guys have me worried! I have madman solid mount, should I switch over to poly and TQ strap it? I don't wanna crack my block!
well Madman told me they DO NOT make those anymore because they where having problems with blocks cracking
Reply
Old Jan 13, 2004 | 09:46 PM
  #12  
WILWAXU's Avatar
TECH Senior Member
20 Year Member
iTrader: (6)
 
Joined: Nov 2001
Posts: 14,378
Likes: 1
From: League City, TX
Default

Street car = poly mounts, and a strap if you think you need it.

IMO: If an exhaust is still hitting after poly motor mounts.. the exhaust is the problem, not the mounts.
Reply
Old Jan 13, 2004 | 10:10 PM
  #13  
Gev's Avatar
Gev
TECH Addict
 
Joined: Mar 2002
Posts: 2,189
Likes: 0
From: Glendale, CA
Default

HOw bad is the vibration in the car with poly mounts?
Reply
Old Jan 13, 2004 | 10:18 PM
  #14  
Classic's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Sep 2002
Posts: 1,943
Likes: 0
From: NC
Default

One of the other things to consider is that for clutch swaps solid mounts make it a bit harder to get to those top bolts as the motor doesn't lean back like it does with stock mounts.
Reply
Old Jan 13, 2004 | 10:20 PM
  #15  
Ron@Vengeance's Avatar
FormerVendor
iTrader: (51)
 
Joined: Nov 2001
Posts: 5,628
Likes: 1
From: Cumming GA
Default

Nice to see this post. Ya would think Madman would have said something to his customers who are using his product. I would love nothing more than to crack a 10k dollar solid roller motor over some POS part known to cause problems like this......
Reply
Old Jan 14, 2004 | 11:59 AM
  #16  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default

Originally Posted by WILWAXU
IMO: If an exhaust is still hitting after poly motor mounts.. the exhaust is the problem, not the mounts.
the exhaust is the problem......but with a car that must go over speed bumps (huge MOTHER F*er that look like small mountains) and is lowered ~1.5", the exhaust MUST be as close to the body as possible (actually want it closer than it is)


Originally Posted by BigBlackZ28
HOw bad is the vibration in the car with poly mounts?
seems basically stock......though if you put the hood up, you can watch the tip (the front up in the air) move a slight bit...

I'm looking forward to the shake, rattle, and roll of the plate mounts
Reply
Old Jan 14, 2004 | 12:02 PM
  #17  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default

Originally Posted by Cammin BeaSSt
Nice to see this post. Ya would think Madman would have said something to his customers who are using his product. I would love nothing more than to crack a 10k dollar solid roller motor over some POS part known to cause problems like this......

People who have MAdman solids would do well to CALL him and ask his feelings on their aplication. He said at low to mid power levels its not really a problem (still not a wonderful idea) but cars that are makeing "big HP numbers" could be in trouble
Reply
Old Jan 14, 2004 | 06:17 PM
  #18  
MADMAN's Avatar
LS1Tech Sponsor
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Jan 2002
Posts: 5,295
Likes: 4
From: At the track
Default

This discussion about solid motor mounts and LS1 motors AND my comments are being taken out of context. I have ONE engine builder that is having problems with ring seal. He is blaming my mounts. I havent proven or disproven his claims. I have numerous mounts out in cars that actually race and I havent had any problems. I am not selling any mounts right now till I can see what the problem this engine builder is having.

Hopefully this will explain my position.
__________________
www.madmanandcoracing.com


225-343-9029
Reply
Old Jan 14, 2004 | 06:49 PM
  #19  
Ron@Vengeance's Avatar
FormerVendor
iTrader: (51)
 
Joined: Nov 2001
Posts: 5,628
Likes: 1
From: Cumming GA
Default

Thanx for chiming in... I am not a "bigdog", but I think I make enough power to crack a block if indeed there is a problem. Shoot me a PM if you find out any info that could be beneficial to me...

Ron
Reply
Old Jan 14, 2004 | 06:54 PM
  #20  
2001CamaroGuy's Avatar
TECH Veteran
iTrader: (6)
 
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Default

Originally Posted by MADMAN
This discussion about solid motor mounts and LS1 motors AND my comments are being taken out of context. I have ONE engine builder that is having problems with ring seal. He is blaming my mounts. I havent proven or disproven his claims. I have numerous mounts out in cars that actually race and I havent had any problems. I am not selling any mounts right now till I can see what the problem this engine builder is having.

Hopefully this will explain my position.
.....well that changes some things. From the way you told me on the phone, it seemed like you were against solid mounts.
Reply



All times are GMT -5. The time now is 01:44 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-6
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-7
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-8
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-9
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE