p_carfan

Call Bob @ "Sunset Porsche" I DIY'ed a few weeks ago.....mounts $99 ea. + attaching hardware .
&
+ 15%

David in LA

Danny - please add me to the list for RS motor and tranny mounts. thanks!

KINGSRULE

FYI

Bottom nut is 19mm, not 18.

I agree, noise does decrease after the first 200 miles.

Most of the noise increase are resonances when the airconditioning compressor is on.

96P993

I would be in for engine mounts....

George A

If someone does a DIY for the tranny mount, I'll take one (just a tranny mount, as I already have the motor mounts).

I get conflicting answers from different people about their install. Some say the tranny needs come out, other say you can just disconnect one section and press it out. Which leads to my other question, how hard is it to press out?

George

Chuck A.

I'm in for the motor mounts...

Greg D.

>Most of the noise increase are resonances when the airconditioning compressor is on.

Ah ha !!!! Thanks for this tidbit !!! My A/C has been making a really weird noise (like a vibe-sound coming thru a hollow tube) since I put in the RS engine mounts and I could not figure out why that was, I had not made the connection between the 2! That is pretty noticeable under 3000 rpm for me. Above, you can't tell anymore so it's OK. I was almost worried about it ! Thanks for sharing !

Flying Finn

Count me in too!

Looks like it's going to be more than 20 of us and if Steve got them for $99 a piece from Suncoast we should be able to do better!

Rezal

Flying Finn,

I think Steve mentioned Sunset (the one in Oregon), not Suncoast (the one in FL).

Funny thing is that when I called a few weeks ago, I got quoted $115. Maybe it's $99 invoice + 15% = $115? Remember, you also need to get all the associated nuts, bolts and washers. I think my total came to around $280-290, excluding shipping. I never got around to confirming the order when another shopping list came up for the DE. Gert's price based on today's exchange rate is at $278 and that includes shipping.

So, yes, I'm in. Let's see if we can get the price down to less than $250!

tom_993

Hmmm… I have the …80’s. I wonder what the difference is. Perhaps whoever arranges the group buy can investigate this.

Good point. This is why I used a thread locker. I also bought new nuts, rather than use the old ones. I don’t think there are enough threads to double nut them.

Motors vibrate a lot, due to all the mechanical things inside them. Just put your hand on an idling motor to feel it. Motor mounts isolate this, so that the chassis doesn’t vibrate. The RS mounts are stiffer, so more vibration gets transmitted to the chassis. The chassis then acts like a speaker and changes the vibrations into sound waves.

You remember Newton, right? For each force there is an equal and opposite one. When your engine turns the flywheel one direction, there is an equal force trying to turn the engine the other direction. Since the motor is attached to the car, it can’t turn, and all the force goes down the drive shaft. However, with worn mounts, the engine does turn a bit in the opposite direction of the flywheel. When you hit the gas, the first thing that happens is the engine itself rotates in the chassis. It compresses the mount on one side, and expands the mount on the other. No force goes down the driveshaft until one mount is compresses as far as it can go. With stiffer mounts, the force goes down the driveshaft immediately.

Perhaps there are different sized nuts. I had to go out and buy an 18mm 1/2“ drive deep socket for the nuts that came with my mounts.

I heard an increase noise with the A/C on, but even with it off, there is more noise.

Me too, depending on the cost and ease of the DIY. I would think you could remove the lower cross member and press the old mount out without removing the tranny, as long as the pressing tool would fit in there. I’d have to add the cost of the tool to this as well, as I don’t have anything that would do it.

Tom
’95 993

p_carfan

Rezal-

Your exzactly correct......I went back and took a look at the invoice, total mounts, all new hardware. (Sunset) $285 a set + shipping .

ApexL8

DJF1,
If this group buy goes through (and momentum seems to be building), do you think it should be in the form of a "kit" with all the new mounting hardware included? It would save a trip to the dealer for new nuts and bolts. Just a thought.

I'm in either way.