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Old 09-28-2012, 10:12 PM   #1
Turn in Concepts
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Default Engine mount testing....

There is a purpose to this, and I expect to be able to link video soon.

We threw some prototype parts into a car tonight, but for information that others may find interesting:

Old setup:
Group N engine mounts
Group N trans mount
Kartboy pitch stop

Motion of engine at startup 0.65".

New setup:
Test engine mounts from MAW with soft bushings installed
Group N trans mount
Kartboy pitch stop

Motion of engine at startup 0.35".

Surprisingly not harsh. Can you feel it? Yes. Is it obnoxious? No.

As I said video is forthcoming. Oh, and I have some pics too.
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Old 09-28-2012, 10:19 PM   #2
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will there be an option for harder bushings? as you state "soft bushings installed"
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Old 09-28-2012, 10:36 PM   #3
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Quote:
Originally Posted by funk32 View Post
will there be an option for harder bushings? as you state "soft bushings installed"
Yes there will.
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Old 09-29-2012, 11:11 AM   #4
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pics? haha
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Old 09-29-2012, 11:34 AM   #5
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Subscribed...
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Old 09-29-2012, 01:23 PM   #6
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Interesting.

What about a 'true base' as in OEM, OEM, OEM?

Then of course a "why this combination would (would not) work".
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Old 09-29-2012, 01:59 PM   #7
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You said old Group N. Do you expect this distance to change with time with the MAW bushings?

Anything beats the stock bushings. The entire engine would twist 5 degrees and move laterally a ways just taking off the oil drain. I laughed the first time I changed oil in a Subaru. I've never seen such things before.

I might suggest adding Cusco engine mounts to the mix just because some do own them. NVH is a little worse than Group N though.
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Old 09-29-2012, 03:34 PM   #8
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Quote:
Originally Posted by Back Road Runner View Post
You said old Group N. Do you expect this distance to change with time with the MAW bushings?

Anything beats the stock bushings. The entire engine would twist 5 degrees and move laterally a ways just taking off the oil drain. I laughed the first time I changed oil in a Subaru. I've never seen such things before.

I might suggest adding Cusco engine mounts to the mix just because some do own them. NVH is a little worse than Group N though.
Actually, the group n in there are not that old. when I said old I meant the old setup vs. something like the new hotness.

We have a couple of other tests to do. First we'll drive on these for a few days. Then we'll try out the stiffer bushings and take a measurement.

We also have a few other brands of mounts to try.

While we're doing this we'll also be testing them on the BRZ. We expect even better results on this as the stock mounts are very soft, and there's no pitch stop on that setup.
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Old 09-29-2012, 03:44 PM   #9
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Now for some pics.

Please keep in mind that these are the prototypes. We received them raw so I hit them with a rattle can quick. Then Greg decided they needed some bling so he splattered the gold on them.

I suspect he's secretly a ricer.

The bushing that is in them is a shore 80A that we actually use for another product we make. Nice thing about part reuse is that I don't have to do new tools or create a new part to keep in stock.

This is a good thing for you as I make that other part in two stiffnesses, AND by using these it will keep overall cost down.





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Old 09-29-2012, 03:46 PM   #10
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Old 09-29-2012, 04:05 PM   #11
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if the bolt came lose would the mount shift? looks like it would wiggle side to side... with other mounts like cusco they have 2 bolts so the housing wont move at all.
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Old 09-29-2012, 05:39 PM   #12
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Quote:
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if the bolt came lose would the mount shift? looks like it would wiggle side to side... with other mounts like cusco they have 2 bolts so the housing wont move at all.
You could play the if the bolt came loose game on just about any bolt in the car really.

Given the direction of the bolt if it came loose it would slide a bit in the clevis. As for rotation about that axis, on these cars it's not a concern much because of the tranny mount, and the pitch stop keep for/aft pitch a bit in check.
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Old 09-29-2012, 05:56 PM   #13
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I am impressed: the multi-use of an existing product (that you already make).

Now, if only it were much easier to change engine-mounts while in your garage, on your back, using a jack, and that's not the half-of-it.
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Old 09-29-2012, 06:18 PM   #14
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Quote:
Originally Posted by Turn in Concepts View Post
You could play the if the bolt came loose game on just about any bolt in the car really.

Given the direction of the bolt if it came loose it would slide a bit in the clevis. As for rotation about that axis, on these cars it's not a concern much because of the tranny mount, and the pitch stop keep for/aft pitch a bit in check.


sounds good lol, I was just wondering yes you could what if things to death but if your buying a new part, people want some easy answers for the part they are buying
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Old 09-29-2012, 08:18 PM   #15
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There's substantially less material here than the group-n, OEM, etc pieces.

What are your thoughts on the longevity of these pieces?
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Old 09-29-2012, 09:00 PM   #16
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Quote:
Originally Posted by teiva-boy View Post
There's substantially less material here than the group-n, OEM, etc pieces.

What are your thoughts on the longevity of these pieces?
Looking at how they are made and knowing the characteristics of the bushings longevity should be pretty good.
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Old 09-29-2012, 09:01 PM   #17
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Are these OEM height or do they lower the engine position. If so how much lower?
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Old 09-30-2012, 11:30 AM   #18
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Quote:
Originally Posted by JarHarms View Post
Are these OEM height or do they lower the engine position. If so how much lower?
Stock height.
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Old 10-01-2012, 10:42 AM   #19
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Old 10-02-2012, 09:23 PM   #20
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Quote:
Originally Posted by teiva-boy View Post
There's substantially less material here than the group-n, OEM, etc pieces.

What are your thoughts on the longevity of these pieces?
UMI Performance makes mounts similar to these for the 1st gen CTS-V. And before they started making these, a guy on cadillacforums.com made some that were basically the same thing. I don't know how many sets of them he sold, or how many UMI has sold, but I have yet to see anyone post of an issue with them.

And if there is an issue, it should be pretty easy to pull out one side at a time and replace the bushings.
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Old 09-30-2012, 01:16 AM   #21
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you guys are gonna make me broke
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Old 10-01-2012, 05:28 PM   #22
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Just curious. What is the application of the bushing that is being repurposed for this mount?
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Old 10-01-2012, 05:47 PM   #23
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Quote:
Originally Posted by gsrcrxsi
Just curious. What is the application of the bushing that is being repurposed for this mount?
Looks like a trailing arm bush?
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Old 10-01-2012, 07:55 PM   #24
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I see a transmission mount using two of the TiC bushings in a similar fashion to this prototype engine mount set.
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Old 10-01-2012, 08:47 PM   #25
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I believe its going to be cost competitive. Bushings going to need.any kind of usual maintenance greasing?
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