The Motor Mount Thread

[apawk]

Installed my JBR 80a RMM yesterday! I love it!!!! Can definitely tell a difference in shifts and take off. Just gotta get use to the vibes. Anyone else have a rattle noise after install at idle with a/c on?

[Staceye77]

I went cp-e rmm 75 duro! Thanks ! I would have been lost without this thread

[Rayd]

We want MS6 side mounts from SURE or JBR!!

[SPEED3 EDDIE]

I just installed the PMM from JBR and its a great quality mount, but has anyone get a whining noise after install? Sounds almost like you hear the belts more inside the car. But other than that its a much needed part. The car feels much better with the mount. No more sloppy shifts!

[JBR]

Originally Posted by SPEED3 EDDIE I just installed the PMM from JBR and its a great quality mount, but has anyone get a whining noise after install? Sounds almost like you hear the belts more inside the car. But other than that its a much needed part. The car feels much better with the mount. No more sloppy shifts!

That sound you hear is the timing chain and valve train. Glad you like the mount.

Thanks,
Jamie

[tarnumf]

I had JBR 70A rear engine mount installed and I couldn't bear with vibrations. Having my Spanish neighbors to turn their heads was clear indication that something is wrong And my completely rebuild sound system wasn't appreciating it either.
For Chicago city traffic it was really wrong choice. I went with Cork Sport inserts and they are "just good enough" - no vibrations, wheel hop greatly reduced (though not gone completely), shifting smoothness improved big time (I have TWM complete replacement).

[We Are Ninja]

Does anyone know what approximate durometer SURE's "street" and "race" bushings are?

[Stretcher]

How about the Durometer of the CP-E stage 2 mount?
eric

[dead-zone]

Ricently installed JBR PMM e70. As performance wise, like most of the aftermarket Moutor mounts, it is very nice. When it comes to Vibs and loudiness. Quite a lot of vibs and timing chain noises. They did go quite down but still very noticeable. I am very picky about vibs and excesive noise and the one that we are talking about is not very bad. I did about 200 miles and I hope they go down more, If it is about 30% less from what is is now will be awesome.

[Deldran]

Originally Posted by We Are Ninja Does anyone know what approximate durometer SURE's "street" and "race" bushings are?

I don't know exactly but I though I saw a thread somewhere that said race was close to 90 not sure and hard to search on phone. I just installed the race RMM not to long ago and love its vibs are by no means in bearable but they are they.

If u look under the sure section on the forums I have a review there

Sent from galaxy Nexus vis xenonHD

[johnspeed3]

I am so lost on what to get.

I would like a mount that has minimal to no vibrations but yet is better than stock because the motor flops all over the place. I do like to use my AC on 90 degree days so it must work well with the AC on too.

I read most just upgrade the RMM then others are upgrading them all due to one being upgraded which puts stress on those that aren't.

Any ideas?

[Deldran]

Originally Posted by johnspeed3 I am so lost on what to get. I would like a mount that has minimal to no vibrations but yet is better than stock because the motor flops all over the place. I do like to use my AC on 90 degree days so it must work well with the AC on too. I read most just upgrade the RMM then others are upgrading them all due to one being upgraded which puts stress on those that aren't. Any ideas?

Don't be a pudsy and get a stiff mount vibes really are not bad at all

Sent from galaxy Nexus vis xenonHD

[dead-zone]

@johnspeed3 Get the RMM see how you like it. BWT, with the RMM you will pretty much notice not vibs but performance wise it does make difference, especially shifting. They later get the PMM. From my experience( I had all MM) the TMM makes most noise out of all.

[johnspeed3]

Alright awesome, So just getting the RMM isn't going to cause the others that are stock to snap on me? I'm not launching the car or anything at the track/street

[JBR]

if you're on the fence maybe 10% off all mounts for Labor Day will help. Web code "worksux" good now through midnight tomorrow.

[rapter]

hmm, So Im ready to buy a RMM on my MSP 6.. Dont want anything too stiff.
i noticed on this thread that people are not really talking about the AWR RMM for the 6..
I believe the JBR one has only the option of going with the Custom 80a Durameter urethane bushing. I kinda would like to stay around the 70 mark...
I know any of these is a fantastic upgrade just trying to minimize the vibration part..

Thanks any input is greatly appreciated.

[mituc]

If cabin noise is important to you then you may consider staying stock or eventually use some inserts for the RMM to reduce the engine movement a bit.
A 60 duro mount may also be fine, depending on how you actually feel (you may consider acquiring a rubber bushing mount rather than an urethane mount).

Anything above 60-65duro is about pure performance and starts loosing any contact with cabin comfort. If you also temper with the side mounts then kiss cabin comfort good-bye.
And I'm talking about real cabin comfort, not the "I'm a true man, I can handle it!" kind of comfort. When having upgraded motor mounts usually (but not necessarily) the passengers/driver will feel more tired after medium/long drives (say, 100+ miles) and possibly more nervous than if they had stock motor mounts.

There's a very thin line between performance and comfort and it's very hard to follow it. And sometimes you need to throw your money on a motor mount and see how it feels for yourself and if you can take the extra NVH, because every individual will react differently to that.
Speaking for myself who I could still hear 20+KHz noises by the age of 30 (normally people loose the ability to hear above 15-16KHz by the age of 17-18) the extra noise coming from a 60 duro mount (urethane or rubber, tested both) is the most that I can take.

[Pseud0logik]

Originally Posted by mituc There's a very thin line between performance and comfort and it's very hard to follow it.

I agree with this completely and it seems we are in the minority in feeling this way. I upgraded from the stock mount to a 60a SU mount shortly after I got the car and the increase in vibes was very tolerable and almost unnoticeable. Then after reading what seemingly everybody had to say about how awesome the JBR 88a mount was I bit the bullet and bought it. I put about 5k miserable miles on that mount, completely hating my car and how it rattled and shook like it was going to fall apart. My wife hated it and people who rode in the car would occasionally comment on it. With the A/C off I could tolerate it, but A/C on was just unlivable for me. This last weekend I bought and installed a JBR 80a mount used from another member and my car is actually comfortable again!

Bottom line: what is acceptable to some people may not be acceptable to you.

[rapter]

Yeah it seems like i will go with the Cp-e mount cause that one is at 60 from what i read?
yeah i def wanna increase a bit of performance cause i will do a few upgrades on the car but nothing like changing turbos or something, So i want it to be able to handle the some performance upgrades, and i won't mind a bit of vibrations i know this is too be expected

I really appreciate all the info, So i def will go with the 60 version! thanks guys let you know what i think when its in

[rapter]

Originally Posted by mituc If cabin noise is important to you then you may consider staying stock or eventually use some inserts for the RMM to reduce the engine movement a bit. A 60 duro mount may also be fine, depending on how you actually feel (you may consider acquiring a rubber bushing mount rather than an urethane mount). Anything above 60-65duro is about pure performance and starts loosing any contact with cabin comfort. If you also temper with the side mounts then kiss cabin comfort good-bye. And I'm talking about real cabin comfort, not the "I'm a true man, I can handle it!" kind of comfort. When having upgraded motor mounts usually (but not necessarily) the passengers/driver will feel more tired after medium/long drives (say, 100+ miles) and possibly more nervous than if they had stock motor mounts. There's a very thin line between performance and comfort and it's very hard to follow it. And sometimes you need to throw your money on a motor mount and see how it feels for yourself and if you can take the extra NVH, because every individual will react differently to that. Speaking for myself who I could still hear 20+KHz noises by the age of 30 (normally people loose the ability to hear above 15-16KHz by the age of 17-18) the extra noise coming from a 60 duro mount (urethane or rubber, tested both) is the most that I can take.

Well danm i just got a call back from SU and they said they no longer sell the 62A RMM. so the guy said the SURE one at 75A is the closest they got, so i went with that one, in a powder blue since this is my theme.
So im a little disappionted but will see, will get it before the weekend.
Will drive it right away IM going on a road trip first week in Oct and i wanna bring my MSP6 not the protege hahaha,
But hopefully i will break it in by than.

Thanks for the tips guys

[TiGraySpeed6]

I doubt you'll have any problems with the NVH, it's really not that bad. Besides, the improvements brought to the party are substantial enough to be worth it.

[rapter]

got the SURE RRM. blue. you can see the difference between the stock and it and i put her on, it wasnt too bad. i definitly recommend a lift or car jack something to lift the engine a tad. and as well something to give you leverage.

I stuck a Pry bar between the back of the mount and the Black bar running across the car this allowed me to move the mount Forward towards the Engine Block. and TADDAA!!!

Vibes are barely noticeable when driving or Idle, but they are DEF noticable when you turn the A/C on. but Honestly nothing you cant live with.

With just a RRM and CAI(so far in the car) HOLY SHIT!!!!!!!!!!!
I FEEL LIKE IM DRIVING A TOTALY NEW CAR!!!!!!!!!!!! LOVE IT!!!

[Nliiitend1]

For an MS3, walking the "thin line between performance and comfort" is easy to do, IMO.

Get a CP-E Stage 2 RMM and call it a day.

[jmhinkle]

Never noticed this thread, but I've had experience with a lot of the MS6 mounts. Basically a 60-70 rmm and the TT FMM are all most people will ever need and they will not induce much discomfort at all. A few rattles may appear, but that is about it. Side mounts on an MS6 will make life absolute hell, BUT you will need at least the passenger mount when you get into 500HP range. Dustin just ripped his apart on a 3rd gear pull the other day. You can probably still get away with the 70 AWR mount there and be plenty safe, but I had the 88 mount once and made it around the block to pull it back out. Anything above 70 seems to be intolerable to me to drive on the street. I feel bad for the MS3 guys that need tranny mounts because the noises alone would make me sell the car.

[Spiral1183]

Originally Posted by jmhinkle Never noticed this thread, but I've had experience with a lot of the MS6 mounts. Basically a 60-70 rmm and the TT FMM are all most people will ever need and they will not induce much discomfort at all. A few rattles may appear, but that is about it. Side mounts on an MS6 will make life absolute hell, BUT you will need at least the passenger mount when you get into 500HP range. Dustin just ripped his apart on a 3rd gear pull the other day. You can probably still get away with the 70 AWR mount there and be plenty safe, but I had the 88 mount once and made it around the block to pull it back out. Anything above 70 seems to be intolerable to me to drive on the street. I feel bad for the MS3 guys that need tranny mounts because the noises alone would make me sell the car.

When you mentioned the 70 AWR mount above, are you speaking of the RMM? I'm considering that for my MS6 but there are not many reviews throughout this thread on that particular mount. I also like the fact that if I don't find the 70A to be stiff enough, replacement bushings are pretty cheap.

[jmhinkle]

70 Duro is more than stiff enough on one mount. The RMM doesn't do a whole lot in the overall scheme of things, but replacement is necessary and it eliminates some sloppiness in shifting. The TT FMM is very important along with the passenger mount at some point.

[AtTheDriveIn]

I love my TTFMM...

[TiGraySpeed6]

I need a TTFMM.....

[Guthrie]

Hey, when the OEM RMM goes does it transfer more or less vibrations from the engine to the chasis?

[xtasy]

Have anyone here switched from a trz tmm to a JBR one? If so, was there any difference in vibration or performance?

I'm still debating whether to make the switch or not.

[We Are Ninja]

Originally Posted by Deldran I don't know exactly but I though I saw a thread somewhere that said race was close to 90 not sure and hard to search on phone. I just installed the race RMM not to long ago and love its vibs are by no means in bearable but they are they. If u look under the sure section on the forums I have a review there Sent from galaxy Nexus vis xenonHD

Thank you VERY much. That helps a lot.

[jm211]

Originally Posted by Guthrie Hey, when the OEM RMM goes does it transfer more or less vibrations from the engine to the chasis?

I would imagine more as the engine may sit cock-eyed or the softer rubber will crack within the mount causing odd noises. The engine would also move a lot causing the turbo to hit the firewall under moderate to heavy shifting.

You would know.

[Guthrie]

Originally Posted by jm211 I would imagine more as the engine may sit cock-eyed or the softer rubber will crack within the mount causing odd noises. The engine would also move a lot causing the turbo to hit the firewall under moderate to heavy shifting. You would know.

Ok, time to replace mine then!

Which one would guys you recommend for daily driving with OEM clutch - something more durable but not too much stiffer than the stock RMM?
Or maybe only some new inserts with the stock one?

[3Gee Tee]

I have the cp-e 75a duros and it's perfect for DD; also eliminated my wheel hop completely.


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[jmhinkle]

Guthrie, I think you have a 6, so anything in the 70 range is plenty for the rmm. AWR's works great.

[3ONBOOST]

currently got cs inserts. have had them for a few years and they're great for a cheap, non obtrusive add-on.

i'm about to order both side mounts and most likely a replacement rmm as well. definitely keen to have something solid as i'm doing the odd track day, but still want to maintain minimal nvh levels.

using jbr mounts as an example; if i went 70's all round along with a tt fmm, could this be a lower nhv alternative providing similar stiffness to 80/88's all round (but without the tt fmm)?


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[Nliiitend1]

Originally Posted by 3ONBOOST currently got cs inserts. have had them for a few years and they're great for a cheap, non obtrusive add-on. i'm about to order both side mounts and most likely a replacement rmm as well. definitely keen to have something solid as i'm doing the odd track day, but still want to maintain minimal nvh levels. using jbr mounts as an example; if i went 70's all round along with a tt fmm, could this be a lower nhv alternative providing similar stiffness to 80/88's all round (but without the tt fmm)? Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

Are your side mounts trashed?

If you want minimal NVH and your side mounts are still OK, just start with the CP-E Stage 2 rear mount.

[3ONBOOST]

Originally Posted by Nliiitend1 Are your side mounts trashed? If you want minimal NVH and your side mounts are still OK, just start with the CP-E Stage 2 rear mount.

i believe they're okay at the moment, but the car is first of the gen1's, 06/06 build.

as i'm putting more power through and with more aggressive driving on track days and autocross etc, the primary aim is to avoid dropping the engine, second is hopefully keep nvh as low as possible.

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[Nliiitend1]

Well I track my car regularly (and have since I got it), and all I'm rockin' is a CPE Stage 2 RMM (after having used the CS inserts as well as a conventional "Stage 1" with both available durometer bushings). I think it strikes the balance you're looking for (at least it does for me).



Take it for what it's worth.

[naoandlater]

Originally Posted by xtasy Have anyone here switched from a trz tmm to a JBR one? If so, was there any difference in vibration or performance? I'm still debating whether to make the switch or not.

After putting all three mounts in, I can tell after driving my car and your car, you get less vibrations with the jbr tmm. Performance wise, its about the same.

I might be in the city next weekend during the day time so you can maybe test drive it if you want.