polyeurothane mounts??

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Nov 18, 2007 | 06:23 PM

alconk

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polyeurothane mounts??

I just replaced my broken tranny mount with a urothane (Energy Suspension) mount and mann this is harsh!! I feel every vibration and loud as a log truck. Is this normal??? I might switch back to a rubber mount??

Nov 18, 2007 | 06:44 PM

TwoFast4Lv

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From: LT1 land...the "409" of the 90s!

very normal

Nov 18, 2007 | 06:56 PM

speed_demon24

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From: Ocala, FL

Auto or 6-speed? When I put one in when I had an auto I took it right back out, but with my 6-speed it didn't vibrate anymore than stock.

Nov 18, 2007 | 07:25 PM

onephatZ28

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I have a A4 and its not that bad with the Energy Suspension mount

Nov 18, 2007 | 08:13 PM

Toronto_LT1

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mine vibrates between 100-130 k/h but smooths out considerably after that.

Nov 18, 2007 | 08:20 PM

alconk

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it's a auto. It vibrates the most under acceleration, but as soon as you let off then it's noisy. It's like I bolted it directly to the chassis. I was going to replace the engine mounts also but I don't know now???

Nov 18, 2007 | 08:24 PM

hyperzone

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From: St. Augustine, FL

I've got poly motor mounts and tranny mount on mine (M6) and it doesn't seem any better or worse than the old rubber ones.

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Nov 18, 2007 | 10:09 PM

James Montigny

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Tried it on both of my 4th gens, ended up taking it off and swapping for a standard LS1 mount.
The ride was too harsh for a DD with a chassis-mounted torque arm; I just replace em as I break em.

Nov 18, 2007 | 10:10 PM

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Biggin'89

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From: kc

yep my m6 mount doesn't seem any worse than stock (but i know it is cuz it broke a motor mount). but it seems like all the a4 guys complain.

Nov 18, 2007 | 10:11 PM

#11

iceman15

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From: La Palma, CA

x2 for the ls1 mount

Nov 18, 2007 | 11:47 PM

#12

alconk

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what's different between a LS mount and the LT1 mount??

Nov 19, 2007 | 12:02 AM

#13

TwoFast4Lv

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From: LT1 land...the "409" of the 90s!

The LS1 mount has a bult in travel limiter. I modify them and limit them even more. had them going into the nines no problems and quietly drive home from the track

Nov 19, 2007 | 12:41 AM

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Formula350

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From: Decatur, TN (N-W of Athens)

There's something else wrong if that's happening. I'd say motor mounts too are toast. I put that same mount in my TPI car after the trans mount was obliterated (trans hitting tunnel) and I never experienced anything like that.

Nov 19, 2007 | 07:50 AM

#15

James Montigny

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Quote:

Originally Posted by TwoFast4Lv

The LS1 mount has a bult in travel limiter. I modify them and limit them even more. had them going into the nines no problems and quietly drive home from the track

Travel limiter and tougher rubber.
Anymore, I think the dealerships only offer the LS1 mount anyhow.
It looks like Advance Auto still sells both.

LS1 Mount

LT1 Mount

Nov 19, 2007 | 09:41 AM

#16

Toronto_LT1

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^^^ what do i need to modify if i want to use LS1 tranny mount on my LT1?

Nov 19, 2007 | 11:41 AM

#17

Formula350

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From: Decatur, TN (N-W of Athens)

Quote:

Originally Posted by Toronto_LT1

^^^ what do i need to modify if i want to use LS1 tranny mount on my LT1?

I too am curious, not that I think I need to replace mine yet. But it looks like trim some metal off? Or was it elongating the bolt holes?

Nov 19, 2007 | 01:25 PM

#18

James Montigny

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Quote:

Originally Posted by Toronto_LT1

^^^ what do i need to modify if i want to use LS1 tranny mount on my LT1?

It's a direct replacement. No modification required.

Like I said above, most places don't even bother with LT1 mounts anymore,
the LS1 mount PN replaced it in most parts lists.

Nov 19, 2007 | 02:29 PM

#19

Formula350

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From: Decatur, TN (N-W of Athens)

Quote:

Originally Posted by James Montigny

It's a direct replacement. No modification required.

Like I said above, most places don't even bother with LT1 mounts anymore,
the LS1 mount PN replaced it in most parts lists.

Good deal.