Another Engine Mount Question

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Mar 11, 2017 | 06:57 PM

#16

SpeedyC2

Rennlist Member

Joined: Jan 2012

Posts: 1,539

Likes: 287

From: NC

I got my RS mounts from Carnewal. The set came with the mounts, the 2 large bolts, 2 large nuts, and the 8 washers (4 large, 4 thick) associated with the main bolt. I reused the 4 13mm bolts and their washers for the top of the mount.

Mar 12, 2017 | 11:45 AM

#17

Tlaloc75

Three Wheelin'

Joined: Aug 2016

Posts: 1,984

Likes: 153

From: Montana

Quote:

Originally Posted by Ed Hughes

The only NVH I got from RS is a slight "whirring" when the AC comp cycles. Nobody else in the car notices it.

I get this too but its more of a medium pitched whining than a whirring to my ear. It drove me crazy until I figured out what it was. Now I can live with it, but if I was running AC a lot it might bug me. A good thing to know about before doing these mounts so you know the possible downsides.

On the bright side, the rear end feels extremely tied down.

Mar 12, 2017 | 02:53 PM

#18

nine9six

Banned

Joined: Oct 2011

Posts: 5,464

Likes: 31

From: Oregon

Quote:

Originally Posted by bobbyp

So, for the RS mounts, do you need to buy the $100 in bolts and washers or is something re-usable from stock?

From pcarworkshop:
901.305.311.00 Seat (qty 4) ($30)
900.082.030.02 Bolt (qty 2) ($18)
999.025.074.02 Washer (qty 4) ($41)
999.025.134.02 Washer (qty 4) ($11)

No, its all part of the kit from Sunset...Other than the top 4 mount fasteners.

Mar 12, 2017 | 03:21 PM

#19

pegdrag

Racer

Joined: Sep 2011

Posts: 413

Likes: 6

From: Oregon

I just replaced the OEM mounts with the RS mounts at 38k, original mounts were in poor shape.
I don't notice any significant increase in noise or vibration.
I'd replace the bolts.

Mar 17, 2017 | 01:22 PM

#20

911Jetta

Rennlist Member

Joined: Dec 2003

Posts: 7,211

Likes: 490

From: NC

Quote:

Originally Posted by Tlaloc75

I too get the whining noise when the AC compressor cycles.
What's the noise coming from? A worn AC compressor bearing?

Mar 17, 2017 | 02:20 PM

#21

Ed Hughes

Rennlist Member

Joined: Jul 2002

Posts: 16,556

Likes: 94

From: Bend, OR

It is just the comp cycling.

Mar 17, 2017 | 04:05 PM

#22

_snowbird_

Rennlist Member

Joined: Jul 2014

Posts: 1,075

Likes: 5

From: Toronto, Canada

Quote:

Originally Posted by SpeedyS2

I will say the difference is pretty startling! The handling is now easily as good as my Cayman S (which is a good thing!) and the car feels extremely "planted" in every situation I've thrown at it so far. Shifter feel is a bit better, too, which is a nice side effect. To me, the increase in NVH is very minimal.

The most noticeable improvement on my car was also in the handling. I feel like my suspension got "less-squirrelly" on lane changes and in weight transfer heading into turns. It wasn't what I was expecting, but it was very welcomed.