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Genesis Engineering | PR
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1,129 Posts
Discussion Starter #1 (Edited)

Custom Performance Engineering is developing and will be releasing a set of EPDM (ethylene propylene diene monomer) rubber engine mounts for the Genesis Coupe 2.0T and V6 variants.

CNC machined from billet 6061-series aluminum; these mounts are a great upgrade to the factory units and alot more durable, but they also transmit far less NVH (noise, vibration and harshness) into the cabin than polyurethane mounts.

Our mounts are unique as we use rubber for the bushing as opposed to urethane simply because it’s better suited for this application. Rubber withstands engine heat much better then urethane, and it won’t deform or crack over time the way urethane can. We were also able to incorporate a unique method of holding the mount in the vehicle - using billet bushing housings and strong steel. This increases the effective stiffness of the bushing under engine loads, and absorbs annoying vibrations.

Most likely we will have variable durometer values for customers with different goals for their cars - both softer and harder.

We have used similar engine mount technology in our Mazdaspeed3/6 products - to this day maintaining the best mounts available for those cars.

I'll be updating the thread more as development moves on. Currently waiting on a part to come back from the laser cutter. Looking to get this done ASAP as its very necessary for these cars - videos of the differences will come as well.




A rapid prototype for test fitment and sizing


Ive dug up some prototype bushings from a previous mount project.

We can make a few sets from each of the durometer ratings that we have:
(from softest to hardest)

45
60
75

We typically recommend 60 for aggressive street and 75 for built, high HP cars which exert alot of stress on the mounts. 45 is a great replacement for factory mounts, providing extra support, yet maintaining comfort.
 

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535 Posts
i haven't heard of many people swapping engine mounts without swapping the engine itself... what will it take to install these? will you need access to an engine hoist to do it?

after seeing BR's video on the fuel line, i'm thinking stiffer/stronger mounts might be a good idea with higher stage modding.
 

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Torque Junky
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1,643 Posts
Nice I'll be acquiring these 4 sho!
 

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Ontario Genesis Club
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3,356 Posts
THose look awsome!
 

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Since 3/25/09
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906 Posts
NICE!! I can't wait!
 

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Genesis Engineering | PR
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1,129 Posts
Discussion Starter #16
Ive dug up some prototype bushings from a previous mount project.

We can make a few sets from each of the durometer ratings that we have:
(from softest to hardest)

45
60
75

We typically recommend 60 for aggressive street and 75 for built, high HP cars which exert alot of stress on the mounts. 45 is a great replacement for factory mounts, providing extra support, yet maintaining comfort.
 

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Get me out of this Honda!
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40 Posts
I have a friend who ordered many mazda 6 products from you guys and they were all great. I can't wait to get my genesis coupe so I could start modding as well! Just wondering though, coming from a noobs perspective... say I get the 60 hardness mounts - what will that to do performance/comfort etc for my car? Just wondering. Thanks!
 

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Take 'em Fei!
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9,280 Posts
What would you rate the stock oem mounts at using the above numeric system?

Bill
 

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Genesis Engineering | PR
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1,129 Posts
Discussion Starter #19 (Edited)
Well ill be testing all 3 variations in the car.. both the v6 and 4 cyl. So I will be able to accurately tell you how these behave in the car.

As far as stock mounts? on the 2.0T it almost feel like they dissapear after the engine heats up - lol. They get very very soft and the engine soft of floats almost.

I also have a design done for the trans mount and the rear diff 2nd mount - how do people feel about those?
 

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475whp 93/545whp Q16 SAE
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1,096 Posts
In my opinion after taking this car apart, all the driveline mounts (engine, trans, and rear diff) could see major benefit from being more rigid. Dmitriy is completely right about the engine mounts, they turn to mush when heated/stressed. The trans mount is no different than the engine mounts in that respect, there is WAY to much play in the trans mount, which could also account for some of the sloppy shifter feel people are experiencing in this transmission (among other things). IMO, anything that eliminates slop out of the driveline is an absolute must! I'll take a full driveline mount package please!

Edit: Another note to those wondering about the diff mounts in the rear, I was able to get under the car and physically twist the dif housing with my own two arms with the empty second mount! After I noticed that, I jacked the rear of the car up to see how much twist the single, rubber bushing type diff mount allows and I couldn't see the bolt hole on the diff cover in the second mount spot! Definitely something to think about with the amount of torque these cars have been seen to make so far!
 
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