Sacrilicious
boom boom!
- :
- Cosmic Blue MS3 of hawtness!
ok, so i just came back from my first test drive with this mount, and i'm going to give you guys some feedback as to what i thought of this mount as compared to the CS inserts, SU mount, and stock mount.
here's a few pics to start things off:
the mount with exposed blue rubber:
the mount with the aluminum cap that covers the top and bottom of the holes in the rubber...please note that the one that goes on the bottom is flipped over to show what the aluminum cap looks like on the other side:
here's my critiques for the stock mount, CS inserts, and SU mount to build a comparison:
stock mount - lowest vibe available...smooth as hell, but wheel hop possible when you romp on the gas in 1st and sometimes even 2nd gear.
CS inserts - no added vibes...noticeable increase in shift quality and mount stiffness. did not see wheel hop. lasted roughly 2 months before i was wondering if i was back to stock or what...
SU mount - added vibes at idle and a little added roughness when partially engaged in 1st gear and when riding around in first gear. slightly stiffer than the CS inserts...no wheel hop. lasted longer than the CS inserts...was still running them without issues as i got the CP-E mount.
...and now we get to the CP-E mount:
i honestly have nothing bad to say about this mount. the idle feels completely stock. there are no added vibrations. partially engaged 1st gear and riding around in it afterwards feels smooth as butter. mount stiffness is at least as high as the SU mount. i beat the hell out of it on several pulls all the way from stop through 3rd gear. there is no wheel hop, and shifting is smooth as butter.
before this mount, i didn't even notice how much roughness the SU mount had introduced for 1st gear engagement and engaged driving until after i put the CP-E mount in. it's literally a wake-up call...everything became quite noticeably smoother. it was the feeling you get when you've gotten used to a mild ambient white noise in the background and then someone turns it off! i know it sounds stupid, but don't doubt until you have actually tried this mount out. despite the fact that it is, by far, the most expensive mount out there, it is also the best quality DD mount out there: no added vibe and plenty of added stiffness. it's obviously not as good as the delrin TRZ race mount, but that's not what it's in competition with. as far as my experience goes, it completely blows away all mounts aimed at DD upgrades.
ok, now comes the analysis part: why the hell does this 50 durometer mount maintain stock mount comfort and still give so much added stiffness??? sounds too good to be true, doesn't it? well, here's my personal take on the explanation for this:
all things equal, higher durometer = more stiffness + better shifting, which means degraded ride quality. but wait, all things are NOT equal...the rest of the market uses polyurethane bushings. why does this matter? well, here's the deal: durometer is the measure of hardness/resistance to permanent indentation. this is interesting and all, but when an engine is yanked back and forth during hard acceleration, hardness is not necessarily the thing that holds it in place. it's stiffness that matters. stiffness is the resistance of an elastic body to deformation by an applied force, and this is the force that keeps our engines from shifting around as much during hard acceleration. this is also related to elasticity, which is a material's ability to deform under stress but still return to its original shape when the stress is removed. these three properties (durometer/hardness, stiffness, and elasticity) are all related to each other, and given a constant material, raising durometer will likely raise stiffness as well, but all bets are off when you change materials altogether.
this brings us to the point: polyurethane of 50 durometer does NOT have the same stiffness/elasticity as rubber of 50 durometer. rubber is more elastic and has higher stiffness (in the general case...i dunno if there's weird corner cases for this) than polyurethane. this is why the CP-E mount can give us a smoother ride (high elasticity eats up the vibrations in the mount bushing) and still give us good shifting quality (high stiffness of rubber) when compared to the other polyurethane aftermarket mounts. ya, this about convinces me of the superiority of rubber as an engine mount bushing material. basically, the major contribution that CP-E made here was that they built a solidly-constructed stock mount without cut-outs like the OEM mount had...
simple, elegant, and effective! 
please make note: all these thoughts are my own subjective thoughts and analysis. you are more than welcome to point out my mistakes and misunderstandings, but make sure to remember that i am not posting any of this as an attempt to state anything as gospel!
here's a few pics to start things off:
the mount with exposed blue rubber:
the mount with the aluminum cap that covers the top and bottom of the holes in the rubber...please note that the one that goes on the bottom is flipped over to show what the aluminum cap looks like on the other side:
here's my critiques for the stock mount, CS inserts, and SU mount to build a comparison:
stock mount - lowest vibe available...smooth as hell, but wheel hop possible when you romp on the gas in 1st and sometimes even 2nd gear.
CS inserts - no added vibes...noticeable increase in shift quality and mount stiffness. did not see wheel hop. lasted roughly 2 months before i was wondering if i was back to stock or what...
SU mount - added vibes at idle and a little added roughness when partially engaged in 1st gear and when riding around in first gear. slightly stiffer than the CS inserts...no wheel hop. lasted longer than the CS inserts...was still running them without issues as i got the CP-E mount.
...and now we get to the CP-E mount:
i honestly have nothing bad to say about this mount. the idle feels completely stock. there are no added vibrations. partially engaged 1st gear and riding around in it afterwards feels smooth as butter. mount stiffness is at least as high as the SU mount. i beat the hell out of it on several pulls all the way from stop through 3rd gear. there is no wheel hop, and shifting is smooth as butter.
before this mount, i didn't even notice how much roughness the SU mount had introduced for 1st gear engagement and engaged driving until after i put the CP-E mount in. it's literally a wake-up call...everything became quite noticeably smoother. it was the feeling you get when you've gotten used to a mild ambient white noise in the background and then someone turns it off! i know it sounds stupid, but don't doubt until you have actually tried this mount out. despite the fact that it is, by far, the most expensive mount out there, it is also the best quality DD mount out there: no added vibe and plenty of added stiffness. it's obviously not as good as the delrin TRZ race mount, but that's not what it's in competition with. as far as my experience goes, it completely blows away all mounts aimed at DD upgrades.
ok, now comes the analysis part: why the hell does this 50 durometer mount maintain stock mount comfort and still give so much added stiffness??? sounds too good to be true, doesn't it? well, here's my personal take on the explanation for this:
all things equal, higher durometer = more stiffness + better shifting, which means degraded ride quality. but wait, all things are NOT equal...the rest of the market uses polyurethane bushings. why does this matter? well, here's the deal: durometer is the measure of hardness/resistance to permanent indentation. this is interesting and all, but when an engine is yanked back and forth during hard acceleration, hardness is not necessarily the thing that holds it in place. it's stiffness that matters. stiffness is the resistance of an elastic body to deformation by an applied force, and this is the force that keeps our engines from shifting around as much during hard acceleration. this is also related to elasticity, which is a material's ability to deform under stress but still return to its original shape when the stress is removed. these three properties (durometer/hardness, stiffness, and elasticity) are all related to each other, and given a constant material, raising durometer will likely raise stiffness as well, but all bets are off when you change materials altogether.
this brings us to the point: polyurethane of 50 durometer does NOT have the same stiffness/elasticity as rubber of 50 durometer. rubber is more elastic and has higher stiffness (in the general case...i dunno if there's weird corner cases for this) than polyurethane. this is why the CP-E mount can give us a smoother ride (high elasticity eats up the vibrations in the mount bushing) and still give us good shifting quality (high stiffness of rubber) when compared to the other polyurethane aftermarket mounts. ya, this about convinces me of the superiority of rubber as an engine mount bushing material. basically, the major contribution that CP-E made here was that they built a solidly-constructed stock mount without cut-outs like the OEM mount had...
simple, elegant, and effective! please make note: all these thoughts are my own subjective thoughts and analysis. you are more than welcome to point out my mistakes and misunderstandings, but make sure to remember that i am not posting any of this as an attempt to state anything as gospel!
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