Upgraded (harder) Engine and Transmission Mounts?
- Thread starter burner99
- Start date
Chris_Top_Her
Contributor
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- San Antonio, Texas
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- '15 CX-5 Miata AWD
I have jbr RMM, corksport transmission mount. Yes nvh goes up a lot particularly at high manifold pressure and low rpm (lugging). But its worth it for power delivery during high torque situations. I wouldn't touch a crankshaft pulley. Factory is harmonically balanced, CS isn't. Not worth the gamble. Read up on them in general you have to he very particular about them or they can tear the engine up over time
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- 16 CX-5 Tour'ngAWD
as with my VW GTI 1.8t (4 cyl) 5spd, a 3-piece (engine/trans/pitch mount) "stage 1" poly mount kit 70a durometer vs stock 40a-50a rubber mount increased NVH in a noticeable fashion. but it did make shifting much more direct and connected (along with other small enhancements I added)
You may not notice the nVH as much at speed, when the engine is up in the rev band and the balance shafts are in their sweet spot, but sitting still at idle you will probably notice it. Then, when you put the A/C on and the rpms drop and more load is placed on the engine, again at idle, you will notice it even more
A stage 2 poly kit (85a) for my GTI, really locked down the drivetrain (engine/trans/pitch mount) and was only recommended for: a.) the extreme hardcore street guys, b.) those who raced/auto crossed their cars and/or c.) those that had the VR6 engine as it was inherently smoother by nature.
hope this helps. the 70a of the Corksport mount will be noticeable by you at first as it is a new thing/change from normal. After a while, it will become the new normal and you won't notice it as much.
on Auto trans cars, you might see a benefit from it, or you might not...but the real benefit is for manual trans cars to help minimize trans/engine movement between shifts; giving a more "connected" feel
You may not notice the nVH as much at speed, when the engine is up in the rev band and the balance shafts are in their sweet spot, but sitting still at idle you will probably notice it. Then, when you put the A/C on and the rpms drop and more load is placed on the engine, again at idle, you will notice it even more
A stage 2 poly kit (85a) for my GTI, really locked down the drivetrain (engine/trans/pitch mount) and was only recommended for: a.) the extreme hardcore street guys, b.) those who raced/auto crossed their cars and/or c.) those that had the VR6 engine as it was inherently smoother by nature.
hope this helps. the 70a of the Corksport mount will be noticeable by you at first as it is a new thing/change from normal. After a while, it will become the new normal and you won't notice it as much.
on Auto trans cars, you might see a benefit from it, or you might not...but the real benefit is for manual trans cars to help minimize trans/engine movement between shifts; giving a more "connected" feel
i used to drive a tuned 1.8t passat with stiffer motor and transmission mounts, lightweight flywheel and light weight crank pulley. so i am a little familiar with the nvh. i ran that car hard since day 1 until i sold it almost 20 years later with 190k miles (100k miles with a tune) still pulling strong on the orginal turbo.
still debating if i should put stiffer mounts on the cx-5. modding is a disease hehe.
as for a crank pulley, i will probably skip for now, that a lot of spinning mass that should stay balanced. i wonder if fluidampr makes something for the skyactiv
still debating if i should put stiffer mounts on the cx-5. modding is a disease hehe.
as for a crank pulley, i will probably skip for now, that a lot of spinning mass that should stay balanced. i wonder if fluidampr makes something for the skyactiv
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- 2019 CX-5 GTR
I was out of the loop on these mounts, so I found the information:
corksport.com
I was confused, I thought there were a complete set one for MOTOR and another for TRANSMISSION... however it is a single mount between the MOTOR and TRANSMISSION
corksport.com
This seems to be a GEN1 solution only, and even more interesting the ALL parts link for the CX5 on Corksport doesn't show / find it.
3rd Gen Mazda 3 Transmission Mount | CorkSport Mazda Performance Blog
The CorkSport Mazda 3/6/CX-5 Transmission Motor Mount will liven up you Mazda whether you use it as a daily driver or racecar. When we first installed a prototype TMM in the CorkSport Mazda3 racecar, we immediately noticed the lack of delay coming from the transmission when setting off from a...
corksport.com
I was confused, I thought there were a complete set one for MOTOR and another for TRANSMISSION... however it is a single mount between the MOTOR and TRANSMISSION
CorkSport 2014-2017 Mazda 3 Transmission Motor Mount
The CorkSport Mazda Transmissions mount provides sharper shifting and throttle response. This Transmission Motor Mount fits the 2014, 2015, 2016, 2017 Mazda3, Mazda6, and Cx-5 models.
corksport.com
This seems to be a GEN1 solution only, and even more interesting the ALL parts link for the CX5 on Corksport doesn't show / find it.
