80 RMM Impression.

[breakfstincluded]

Anyone who cites NVH from installing the 80 duro is a pussy.

Just installed RMM with NatorNW.

For a split second I noticed something slightly more intense on start up.

Idle after start up, I would not be able to tell anything had been modified if I didn't know better.

Revving, the only vibration I feel is at the bottoms of my thighs, this would be very useful if I was the opposite sex.

This phenomenon of a louder exhaust after install is much more noticeable than vibrations, and is nothing compared to our usual road noise.

1. Should have got the 88.

2. Need to install moar mounts.

3. Should have got 88 TMM.

My stock OEM was ripping, I owned this car from it's 20k mile mark, and have not launched it once.

There was no downside to this, only moar racecar feel, not even kidding.
For lack of a better term, everything has more feel and oomph, if told the JBR RMM increases HP, I would believe it.

And immediately had a drive with some family members, they didn't notice any changes at all. Maybe they'd think it was louder if I had the windows down.

Awesome product, I'm glad I got the whole set.

And now I REALLY want the RSB.

[xtasy]

Wait until you get all 3 high duro mounts. All my passenger complains about the vibration on stop and go traffic. But I love it, the car feels solid. Vibration not noticeable after the car is above 20mph

[captain slow]

Cool story bro.

Seriously tho, if you say you can't feel it you're full of shit. For the first couple hundred miles it felt like my car was going to shake apart. Now its only noticeable taking off from a dead start or in lower rpms but its there. And I don't get what people are hearing in the exhaust. Its louder in the cabin but the exhaust doesn't sound different at all. It's just sound of the vibes that you hear.

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[breakfstincluded]

No I really can't feel them lol, and I was really anticipating feeling them on the wheel and the dash and everything, I was fearful even on startup. Mostly I can feel what seems like my car trying to make me wet.

It was like staying up all night studying for an exam to find out class is cancelled the next day.

And by the way I have like no ass, it's an asian guy thing, I can't stand sitting on bleachers, I'd rather shit myself to create padding between me and the hard metal.

The sensation of load, as if you're gonna stall when you're getting on the move from a stop is more audible, as in very low RPMs. But I sense nothing at constant throttle. So perhaps I could see a wife at the wheel being very unnerved by it.

And at install I compared with a genpu with the 88 duro, it wasn't too different, and he said the same of mine, it had been broken in already. I didn't say I didn't feel anything, but that it's much more negligible than a concerned person thinking about the RMM should worried about. someone would have to be like 74 years old to really be bothered by this. For all I care this is how the 80 duro is after being driven for 5K miles, I can't believe it gets more sedate.

lol I think it's a given that the exhaust isn't ACTUALLY changed. But you seem to get what we're saying about things being louder.

I haven't been in stop and go traffic yet, and I will have the 2 other 80 duro mounts in soon, so that will be interesting to see how much nvh they add.

[Jake5713]

What rear motor mount?
No seriously I can feel the pmm
No idea the RMM is even there anymore vibes wise
I want the 88



-Jake

[captain slow]

That's really all that's harsh. That low rpm "stall" type of feeling. Nobody should be afraid of the 88. Its harsh at first but dies down so fast. Its totally bearable.

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[breakfstincluded]

Start up + warm up in 38 degree weather to drop off the kids.

I feel nothing.

But need to do 30k cabin air filter, I think I can smell debris roasting.

[captain slow]

I dread the filter change. Im at 40k bought car at 19k, so unless it was changed prematurely before I bought it mines still from factory.

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[breakfstincluded]

I will be curious to see what causes the infamous rear view mirror shake as I drive and install the other mounts, unless it's an 88 duro thing.

[wankular]

I think the trans mount is what causes the mirror to shake.

[86AmishMs3]

Originally Posted by wankular I think the trans mount is what causes the mirror to shake.

trans mount seperates boys from men.

[breakfstincluded]

then what does the passenger mount separate

[86AmishMs3]

Originally Posted by breakfstincluded then what does the passenger mount separate

i've heard a pmm isn't that bad. But the thing with the trans mount is it will induce a lot more vibes, especially with ac. If you have idle bumped up to 1000 it's not that bad at all. without a bumped idle the whole dash shakes and your teeth start almost start to chatter haha. But with a tmm you'll also hear a lot more tranmission whine as well as the noisy throw out bearing.

[adlpb]

If y'all are talking about JBR products then you have it all backwards. The passenger mount will induce the largest vibes, and they will settle after a thousand miles or so. However the rear view mirror will continue to vibrate at certain rpm ranges. You can still see what's going on, just not details.

The trams mount does not create more vibes. It allows for more transmission chatter and noise. More noise is heard when shifting, and LSD whine at higher gears. Again, nothing too bad and all is bearable and muted with some music.

[breakfstincluded]

I've seen fixes for vibrating glovebox and hand break.

Might have to go find those again if vibration increases that significantly with side mounts, maybe someone will come up with a rear view fix lol.

Damn, I was hoping to mount a radar detector on the mirror

[adlpb]

I don't have any issues with glove box or any other plastics. Only rattle I have is from my boost gauge. You have to trust me when I say this: it's really not bad at all, barely noticeable

[JBR]

The PMM is the mount that increases the vibes the most. With that said, after about 3k miles or about the time it take to need an oil change, the vibrations will be almost gone and the rear view mirror will cease to vibrate. If you want traction and significantly reduce torque steer then some NVH is necessary. Mounts that come with no NVH are not doing the job.

Thanks,
Jamie

[breakfstincluded]

I'm starting to think all OEM RMM's are torn at the rubber. Mine had a big tear, and having the car since it's 20k mark, I haven't launched it once.

Definitly makes me feel better about doing RMM when I did though.

[Schmitty5]

Thanks for this... This is exact slap in the face I needed to just man up and get one after reading post after post about how a new RMM makes a world of a difference with shifting.

[breakfstincluded]

I'd confidently say that a new person in your car would find the stock exhaust and road noise much more pestering than the affects of the JBR 80 duro.

I think it's worth it for peace of mind alone instead of hitting your firewall one day or having your engine/tranny going titanic under your hood.

At least for us modded folk.

[captain slow]

Originally Posted by jbarone The PMM is the mount that increases the vibes the most. With that said, after about 3k miles or about the time it take to need an oil change, the vibrations will be almost gone and the rear view mirror will cease to vibrate. If you want traction and significantly reduce torque steer then some NVH is necessary. Mounts that come with no NVH are not doing the job. Thanks, Jamie

Shit 3k miles? I know for the 88 rmm the initial harshness didn't last long. About 500 on that and it's got the perfect amount of vibes to feel like a racecar yet are barely noticeable at the same time. The other mounts that much different?

Everything about my JBR RMM experience has made me happy so ill def be coming back for the other 2 mounts.

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[jvella22]

ya you will feel the vibrations with 88 duro. looking forward to some more break in bcuz the vibes at take off and low rpm make me feel like my car is going to fall in all kinds of parts. not too bad of a sacrifice for a solid shifting experience. JBR= good shit.

[breakfstincluded]

It would of helped tons if I did like JBR's instructions said and I used the scissor jack from the beginning and in the exact place as shown in the picture.

I had some pretty unecessary issues with alighnment because I decided to use a jack lol

The center stock tmm bolt wasn't too hard to get out, just a breaker bar did the trick.

[breakfstincluded]

as stated above, I had incorrectly jacked my transmission up, and also too high, i had fitament issues until I figured this out and also used the scissor jack.

So if anyone knows any of these affects isn't normal, let me know so I can realized I fucked up with consequences.

Anyways.

TMM is in, went on test run with getting popeye's as justification for driving.

HOLY RACECAR BATMAN! Just like with RMM, increased feel makes car seem like it's on even more steroids.

This thing seriously sounds like a rally car now, at least on the inside.

You can hear every bit of the transmission, and in a good way, not like the semi-annoying diff wine on a cold day's start doing a full lock turn.

1. I wish I could find a video, but it really does sound like the inside of a racecar.

To explain the volume of it though... it almost sounds like it's a recording coming from my stereo, and only in one direction. Not like that new M5's "enhanced aural experience" crap but... I could probably fool someone into thinking it is. It's definitly not screeching, it just sounds... beneath my feet.

You can hear every shift and cry and laugh and twitter from the transmission now.

On start up and deceleration in-gear there's a sound that I've heard described as... and I also agree sounds like sound system bass. Very much quieter and different from say, your exhaust while cruising down a steep hill in 3rd.

I love it.

2. Shifts are SOLID now, combined with JBR's STS stuff and fomoco oil (and probably
RMM, though not as dramatic at all as TMM to me) this shifts like a different machine. I feel I can really trust the gearbox is doing what I tell it to, and I also its like there's more connection and feeback. Downshifts are suddenly just a bit more rewarding.

3. I'm so happy after doing the 80RMM and 80TMM I'm now hesitant about doing the PMM. Things feel so perfect I can only imagine another mount fucking up this relationship, much like pornography.

Possibly downside: It's 37 degrees out, and maybe things just needed to warm up more, but I think I can hear my windshield shake at times, if it's a new effect from the TMM, it's the same or quieter than when it's simply cold outside and the interior is still warming up.

[tlh4tung]

I have my JBR TMM, RMM & PMM installed today and since it's my daily driving car so i decided to go with 70a for all mounts. First impression...holly shit! The car inside is shaking so bad. Rear view mirror, side mirrors, dash, glove box and even the windows are all shaking. I know there will be NVH but just didn't know it will be that bad.

The up side is the car does feel solid and shifting also feels solid too. My sis was with me during test drive and she can tell the difference too. Now I will just be patient to wait for those mounts to settle down and enjoy my ride.....

[breakfstincluded]

Must be the PMM.

The stalling sensation from low-rpm / moving from stop is the peak of NVH for me.

I've been learning stick for less than a year now though, and with a fixation on conserving gas at times, I'm learning to get on and off the clutch faster and move up from the low-low rpms.

So I'm used to the stalling sensation because I'd think it would save me gas accelerating slower. But it's always irked me that this habit makes the car shake so.

Conclusion. Personally to combat said vibrations w/ or w/o MM's I need to focus on getting up and goin better, perhaps that would be better for engine life as well.

I'm probably not gonna be able to resist putting on the PMM either way, and as it sounds the worst so far, I'm sure it will settle down some by one oil change cycle.

[JBR]

@Kris@JBR

[breakfstincluded]

btw, spontaneous stock rattle from handbrake is louder than any idle/cruise dashboard rattle if that's something you're worried about.

If there's any ratttle from TMM, I don't notice it anymore, I have to think if there's anything at all. Only real NVH change I can 100% confirm is tranny noises, but those are goooooooooooooood.

[tlh4tung]

Originally Posted by tlh4tung I have my JBR TMM, RMM & PMM installed today and since it's my daily driving car so i decided to go with 70a for all mounts. First impression...holly shit! The car inside is shaking so bad. Rear view mirror, side mirrors, dash, glove box and even the windows are all shaking. I know there will be NVH but just didn't know it will be that bad. The up side is the car does feel solid and shifting also feels solid too. My sis was with me during test drive and she can tell the difference too. Now I will just be patient to wait for those mounts to settle down and enjoy my ride.....

Just a little update. After a thousand mile driving the vibe has been temped, now only happen in first and reverse gear but it's minimal. The other thing is once the vibe decrease..the tranny noise stands out....hahaha

[Schmitty5]

Can't believe people complain about these "vibrations". I have my jbr 88 rmm and it sounds great. If you want a sporty, more firm feel to your car get it. If you don't, just get a regular mazda3

[breakfstincluded]

I have another post after having put all 3 mounts on btw:

80 Duro Trilogy Installed