[s-cars] motor mounts

[Scott Justusson]

IME with these Cody, the snub mount missing is more likely the issue with your 5ktq.  The engine wants to come up in front first, and the only thing holding it is the PS MM. You are better off with the trapped construction of the Mustang/GM trans mounts.  When those fail, the interlocking metal straps keep them from allowing the engine to move thru hood, btdt.  Or, you get more creative on the snub mount...  In the 400+hp ex-Jerritts 5ktq, the front crossmember was replaced with seam welded doubled-up square tubing.  This allowed 2 Spearco Buick Grand National radiators to land in front of the engine, and the snub mount stayed.  Or you can add the urs4/C4 lower crossmember and bottom snub mount design, btdt2

500hp without a snub mount?  That sounds like a hood waiting to be forced off the car without the aid of wrenches (tm-pizzo)

Cheers

Scott J

 

 

 

-----Original Message-----
From: Cody Forbes <cody at 5000tq.com>
To: Taka Mizutani <t44tqtro at gmail.com>
Cc: s-car-list <s-car-list at audifans.com>
Sent: Thu, Aug 30, 2012 6:51 am
Subject: Re: [s-cars] motor mounts


You don't think that using launch control to build 1.0-1.2bar of boost at 
5,0000rpm then letting go of the clutch has an effect on that motor mount? How 
about if I add that the intercooler size forced me to remove the snub mount 
entirely?

I'm not saying the heat doesn't get to it, I know it does, but I know [from the 
out-dent in the hood] that that engine tries pretty damned hard to twist itself 
out of the engine bay. FWIW the factory engine mount heat shield and cooling 
duct are in place and I typically wrap the mounts in heat reflecting tape, but I 
can't recall if I did it to the current one or not.

-Cody Forbes

On Aug 30, 2012, at 12:41 AM, Taka Mizutani <t44tqtro at gmail.com> wrote:

> You will kill passenger mounts due to the turbo heat. I don't think driving 
car hard will do much- I got about 10 years out if mine.
> 
> On Aug 29, 2012 11:11 PM, "Cody Forbes" <cody at 5000tq.com> wrote:
> Which 034 mounts are these? The density or the polyurethane? I had sort of
> burried the hatchet with Javad a bit ago and was thinking or doing one of
> his poly mounts. My 5ktq's drover side mount is 10 years old and going
> strong, but I kill a passenger side motor mount about once a year or more
> (this is the 500+hp 5ktq that gets launched often).
> 
> -Cody
> 
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Stephen Marinello
> Sent: Wednesday, August 29, 2012 10:16 PM
> To: Steve Mills
> Cc: s-car-list at audifans.com
> Subject: Re: [s-cars] motor mounts
> 
> Sorry to hear that. Just put the 034 mounts on the avant last month. Seems
> to be mixed opinions; wish I'd heard the other side. They seem okay, but I'd
> hate to have to pay for labor to replace them again.
> 
> Sent from my iPhone
> 
> On Aug 29, 2012, at 11:36 AM, Steve Mills <s.b.mills at gmail.com> wrote:
> 
> > I wouldn't install 034's motor mounts if they were free- entirely too many
> reports of very early failure, and worse 034 pretending that no problem
> exists.
> >
> > As far as replacing the mounts, check the FAQ in the S4/S6 forum on
> quattroworld. The driver's side is pretty easy to get at, passenger is a bit
> more challenging.
> >
> > On Aug 29, 2012, at 12:49 PM, Martin Baggenstos
> <martin.baggenstos at gmail.com> wrote:
> >
> >> Hello eveyone,
> >>
> >> I have some worn out motor mounts that need replacement and was
> >> wondering if anyone has a write up on how to replace them on a 95 S6.
> >> They are actually polyurethane 034 motor mounts which have worn out over
> 5 years.
> >> Does that seem pretty quick to anyone. I am assuming that I could
> >> drive the car up on a ramp and support the engine with a jack
> >> underneath. I have changed the snub mount out before which is easy
> >> but not the motor or transmission mounts, but from what I read, it
> >> seems pretty simple and I am good with tools and have done other
> >> mechanical work on the car before. Any advice would be appreciated.
> >>
> >> Martin
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