Solid Motor Mounts - Good or Bad? - Page 2

danny waters sr · 03-25-2011, 02:47 PM

Quote:

Originally Posted by mannymen

Full Chassis cars with 2x3 frames rails. Both of our cars had solid trans mounts and never busted or cracked anything.

I think Lew is building a stocker , there would be a diff.

Mark Yacavone · 03-25-2011, 03:23 PM

Quote:

Originally Posted by Lew Silverman

Thanks, everyone!

I'll pick up the mounts this week.

Lew

Lew, pick up one of those red poly "Energy Suspension"? trans mounts from Jeg's or Summit. Nice piece, and well worth the difference over the $10 Chinese crap.

Todd Boyer · 03-25-2011, 06:39 PM

I've even heard that using a poly trans mount can cause broken extension housings. Was advised to use a stock rubber mount. This was in a small block Mopar A-Body.

Jeff Lee · 03-26-2011, 02:23 AM

Anybody try a front and mid-plate and no tranny mount?

greg fulk · 03-26-2011, 02:30 AM

I hate to blow everyone out of the water but dad's Camaro has solid engine & trans mounts & I bet it has made more passes then anybody's on this forum in the last 20 years with no trouble! (it is just a "bracket" car though, high 12's)

Signman · 03-26-2011, 08:03 AM

To over simplify it: Chassis Flex.

When the engine puts applies torque to the chassis it rotates it. The twist is what makes the left front wheel lift more than the other. Solid mounts make the engine & trans. part of the structure of the chassis. If there is flex in that area the weak point is generally the trans. case.

My 2 cars have solid engine mounts and stock rubber trans. mounts.
Poly mount will be more stiff than rubber so if you have little flex your good.
All solid mounts would guess there is not much flex in that area.

Have seen cars with front and mid engine plates both with and without trans. mounts.

It's about engine torque, chassis stiffness and the resulting flex when torque is applied.

My .02

et7333 · 03-27-2011, 09:23 PM

I've used solid motor and trans mounts for over 25 yrs in both my 64 nova bracket car,put over 6000 passes on this car before I sold with solid mounts.My current Camaro has solids mounts and I've put about five thousands passes on this car with no issues using solid mount for trans and engine.

Todd · 03-27-2011, 09:59 PM

We have used solid mounts in our bracket car and our stocker, both engine and trans for years without problem. Good luck with your build.

55 Chevy · 03-29-2011, 11:54 PM

Quote:

Originally Posted by Jeff Lee

Anybody try a front and mid-plate and no tranny mount?

Years ago when I ran the three speed I had solid front mounts,solid bellhousing mounts and no transmission mount. Never had any problems but would not do that again.

Since going to the four speed I have added the trans mount.

BadCamaro · 03-30-2011, 09:18 AM

off topic, would anyone know the part number for the bbc solid mounts for camaro (68), the moroso's

03-25-2011, 06:39 PM	#13
Todd Boyer Senior Member Join Date: Feb 2004 Location: Saint John NB Canada Posts: 560 Likes: 27 Liked 6 Times in 5 Posts	Re: Solid Motor Mounts - Good or Bad? I've even heard that using a poly trans mount can cause broken extension housings. Was advised to use a stock rubber mount. This was in a small block Mopar A-Body.

03-26-2011, 02:23 AM	#14
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 2 Times in 2 Posts	Re: Solid Motor Mounts - Good or Bad? Anybody try a front and mid-plate and no tranny mount? __________________ Jeff Lee 7494 D/S '70 AMX

03-26-2011, 02:30 AM	#15
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: Solid Motor Mounts - Good or Bad? I hate to blow everyone out of the water but dad's Camaro has solid engine & trans mounts & I bet it has made more passes then anybody's on this forum in the last 20 years with no trouble! (it is just a "bracket" car though, high 12's) __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN" Last edited by greg fulk; 03-26-2011 at 02:43 AM.

03-26-2011, 08:03 AM	#16
Signman Member Join Date: Oct 2003 Location: Lower Slower Delaware Posts: 493 Likes: 14 Liked 199 Times in 74 Posts	Re: Solid Motor Mounts - Good or Bad? To over simplify it: Chassis Flex. When the engine puts applies torque to the chassis it rotates it. The twist is what makes the left front wheel lift more than the other. Solid mounts make the engine & trans. part of the structure of the chassis. If there is flex in that area the weak point is generally the trans. case. My 2 cars have solid engine mounts and stock rubber trans. mounts. Poly mount will be more stiff than rubber so if you have little flex your good. All solid mounts would guess there is not much flex in that area. Have seen cars with front and mid engine plates both with and without trans. mounts. It's about engine torque, chassis stiffness and the resulting flex when torque is applied. My .02 __________________ Frank Ferrucci ?/SA 1271

03-27-2011, 09:23 PM	#17
et7333 Member Join Date: Sep 2007 Posts: 155 Likes: 0 Liked 1 Time in 1 Post	Re: Solid Motor Mounts - Good or Bad? I've used solid motor and trans mounts for over 25 yrs in both my 64 nova bracket car,put over 6000 passes on this car before I sold with solid mounts.My current Camaro has solids mounts and I've put about five thousands passes on this car with no issues using solid mount for trans and engine. __________________ http://stevecoxracing.com

03-27-2011, 09:59 PM	#18
Todd Junior Member Join Date: Jun 2003 Location: Canada Posts: 36 Likes: 0 Liked 0 Times in 0 Posts	Re: Solid Motor Mounts - Good or Bad? We have used solid mounts in our bracket car and our stocker, both engine and trans for years without problem. Good luck with your build. __________________ Todd Melville Melville Racing 1577 T/STK

03-30-2011, 09:18 AM	#20
BadCamaro Junior Member Join Date: Mar 2011 Posts: 15 Likes: 0 Liked 0 Times in 0 Posts	Re: Solid Motor Mounts - Good or Bad? off topic, would anyone know the part number for the bbc solid mounts for camaro (68), the moroso's