Damond Motorsports PMM Review
 

This review might be a little long so for all my TLDR people....

http://i797.photobucket.com/albums/y...psf3deacdf.jpg

EDIT: if you want some pics of the mount head on over to this thread. http://www.mazdaspeedforum.org/forum/foru...t-list-181478/

Mount is great
Easy install
less vibes and noise transfer then my cs pmm
my engine is still locked into place while pushing 28psi on my BWs360

My mount setup prior to install:
Cp-e Stage II RMM
CS PMM
Stock TMM w/ CS insert

Ok now for the actual review. i'll say up front i had no problem with my cs mount it looks like a tank, but i was always sour at how much of a bitch it was to install. So on to the DM PMM.....this thing is nice, and unlike anything else i've seen on the market. The install was easy and straight forward.

To install:
I assembled the two halves outside of the car and made them tight. Because no fucks given about tq specs.

Put the mount in, loosely start the frame bolts, and then tightened the top flange to the motor

Next step was to tighten the 19mm bolt that goes through the top bushing. After that you tighten the frame rail bolts.

Now the ground wire can be done one of 2 ways. My way or the DM way. DM tells you to route the ground wire through the body of the mount and hook it up that way. I just sandwiched it between the bottom of the mount and the frame. Yes it did pinch the ground wire, but it still works just fine.

Now onto the initial start up/drive.
First thing i noticed was the interior was quieter. 2 of my interior pieces that did rattle around 1800rpm during cold startup no longer rattled. Also my seat vibes were WAY down on all around and i didn't have many to begin with. So then i took it out and drove it. Same thing less vibes all around with less engine noise transfer. THE ONLY TIME the vibes were equal with my cs pmm were with the ac on at idle. I run a 1k idle with my htp 4" intake so with the a/c on i do get some vibes but it's nothing crazy. I've been in a Full trilogy JBR car w/ bsd and that shit is CRAZY.

So now that the initial drive is done it's time for the real test some wot pulls. My car is no slouch puts down 470-480 @ 28psi on my FJ Turbo kit, and this mount had no problem with it. Did multiple gear pulls and it held great just like my CS PMM. no wheel hop with it at all.

Not only is the mount great, but so are the people that make it. Farhan really sold this mount for me. I told him my end power goals, and his response was "You can't make enough power to break this mount."

So yea...this mount is fantastic. I can't wait for the tmm to come out.

Nice... If your familiar with the jbr 70, how would you say this compares to it?
I recently added in my jbr70 PMM (from stock) to compliment the 80 RMM, and to say the least.. I'm not enthused about the vibes that I'm getting. (RMM in over a year, PMM has about 400 miles now, TMM stock). It sort of feels like I'm driving in a 4x4 with nobby tires. I'm undecided if ima keep it on.. Time will tell.

i have no jbr products on my car so i can't really comment =/. i will say my car didn't have alot of vibes to begin with, but this new pmm cut them in half.

Great write up Ryan! I'd like to take a ride on your car soon.

Everything i expected from this mount and now confirmed! Cant wait for this mount to be available!! Great review!

@Matt@DamondMotorsports; I'll be contacting you soon for a set of my own.

I still have not installed the set of motor mounts I've had from another manufacturer that have been sitting around mainly because I don't trust them anymore.

Looking forward to using these.

The DM RMM is awesome, I expect the same from the PMM. Looking forward to the release and replacing an aftermarket PMM I currently run. No problems with it but prone to bad vibes.

@mr_mazda329

You really can't go wrong with these mounts. Only reason i don't have a dm rmm is because i bought my cp-e before it was released.

I'll have to hit up Farhan or Matt so I can get me a mount and send newdz.

Please pardon my ignorance as I haven't looked around too thoroughly due to lack of time...

Is there a Damond Motorsports TMM as well or in the process of being developed to accompany this PMM?

I needz.

The word from farhan's hole is that it's in development.

So I installed this sexy mount a couple weeks ago and I have to say, I think I am in love. I feel I have given this mount a good run and it is time for me to review it for you all.
Let’s start with my previously existing setup. I have a Genone with all the typical mods with Meth injection pushing about 320HP. I previously had the JBR 88 duro RMM, JBR 80 duro PMM and the TRZ Transmission Mount.
So now we have the installation, not that it is a complicated affair to begin with =P

1. Jack up the car and put it on two level jack stands, put a jack with a piece of wood on it under the oil pan and support the engine.
2. Remove the Coolant and Power steering reservoirs and pull them out of the way.
3. Remove the 2x 17mm bolts from the chassis and remove the 2x 17mm nuts from the engine.
4. Remove the ground strap from the mount and from the chassis (Keep this part for later)
5. Remove the old PMM and throw it out the garage door.
6. Place the new PMM on the studs and start the nuts at least 4 full rotations.
7. Flatten both ends of the ground strap. Attach one end to the chassis ground that is under the power steering reservoir and the other end to the mounting point on the motor mount using the old bolt from the other motor mount. Then the muscle part comes…
8. In a perfect world you would just install the bolts but since the engine most likely shifted a little when you unbolted the old mount, you will need to tug the engine a bit and line up the bolt holes on the mount with the holes on the chassis. A long pole behind the engine helps or a muscle bound friend will do.
9. Once you have the bolts started, torque down the nuts on the engine to 70 lbs/ft and the bolts on the Chassis to 80lbs/ft. (At least that’s what I do for every mount I have installed and we have never had any issues)
10. Then reinstall the coolant and Power steering reservoirs and let the car down.

Overall, install is cake and exactly the same as every other passenger motor mount I have installed.



Now for the results:
I will be comparing to my previous setup not a stock configuration. (Vs the JBR 80 duro PMM)

Overall there are a lot of similarities as far as performance improvement, but there are a couple noticeable differences.
- The first difference being the in cabin NVH is slightly reduced with this new mount.
- The second difference which is by far the best improvement I have felt is the fact that it is easier to shift at WOT (Fuck @Tokay444). This is a problem that I didn’t notice until I installed this mount. Unexpected improvement huh? That’s what I said. The best I can figure is, with the whole bushing carrying the load instead of just the top (as on the JBR), the mount is able to move in a more natural way allowing the easier shifting.
- The mount is also very solid and the engine doesn’t move any more than it did with the JBR mount.

I replaced my VVT last weekend so I had the opportunity to remove and inspect the mount on the bench. After a couple weeks of beating on the mount the bushing still looks like new and all of the bolts were still nice and tight on the mount. I know more time will be needed to truly test longevity but I think this is a great sign.

Overall I absolutely love this mount. If it puts it in perspective, I sold my JBR mount the day after I installed this mount, because I was so impressed. The other obviously awesome thing about this mount is the completely unique design that puts the bushing parallel to the engines rotation allowing the mount to more naturally absorb the movement and vibration. I think, once again, Matt and crew have knocked it out of the park.

Be sure to head over to their website. The mount will be available January 15th. Passenger Side Motor Mount: Mazdaspeed3 | Damond Motorsports

Nice writeup BigO, can't wait to pick one up early next year to pair with my DM RMM that I love so very much.

Who shifts under load?

Fixed for clarity.

You two (kinda) getting along is cute.

Thanks for the review Owen!

Ryan wrote the review.
Owen thread jacked.

Farhan told me to. Stop acting like you know everything Brock, It is unbecoming.

Sent from my SM-G900V using Tapatalk

He posted his review of the DM PMM in a DM PMM review thread. He's been a valuable, impartial beta tester. You don't need to hug him, but please don't poke my help. I need every bit I can get.

I'll do my dealings with Matt from now on, thank you.

Do you have a BSD by chance? I have much interest... my car vibrates like a mofo.. Happen to know the duro of the CS PMM? Also, I put down roughly the same amount of power as you, so I am sure you understand my vibe issue lol

i do not have a BSD i will be doing that when i swap my new motor in. the cs bushings are actually energy suspension bushings.

Amazon.com: Energy Suspension 9.9105G 4-Bar Bushing: Automotive

Damnit! I wonder how these compare to the jbr 88duro I have (or 80? Forget the pmm highest for jbr). My passenger side mirror rattles like a mofo lol. Thinks also just come undone... I had a screw back out of my radar detector haha.

Any who.. Thanks for the review... May just go for it and get one to see the difference.

tapatalkin

Because of these review, I went ahead a purchased one.

Thanks again

Definitely less vibes than my JBR 88 duro. Installed last night so not much review wise but improvement is noticeable

88duro pmm or 88 duro rmm? don't think they make a 88duro pmm lol

I just looked it up and You're right. I picked up the "Trilogy Mount Package 88 Durometer" thinking it was 88 Duro all around. I guess TMM and RMM were 88 Duro with the exception of the PMM being 80.

Now the question is, do you have a BSD like I do. The PMM definitely shakes the car, but the BSD is another level lol.

BTW, I have installed my DM PMM and do love it. Noticeably less vibes, even with the BSD. Prior to the install, I created a video with a glass of water sitting on my dash to show vibes. I will create a second video after about 2k miles on the DM one (so it's broken in) in the same manor for comparison.

Use a certified glass, and calibrated water, please. Just to be on the safe side.





Sorry, had to nerd on it. Thanks for the feedback! I'd like to see the video myself.

LOL!

Does your rear view vibrate like mad? When I had a JBR 70 PMM, my rear view vibrated so much I couldn't make out the type of car that was behind me. Lol.

I am fully mounted with a BSD and I can see cars in my rearview lol

tapatalkin

At idle or driving?


Sent from my iPhone using sausage fingers

That's weird, I have jbrs 80 rmm and 70 pmm and no vibes at my rvm... check to see if you can tighten the mirror.

I was actually interested in the CP-e mount. But I am diggin' the price of this mount. My only concern regarding this one is:

It looks like when the bushing wears out, the metal surrounding the bushing itself might start to contact the top plate that bolts to the engine. I know it would take a loooooong time before that ever happened, but, can anyone post a downward pick of this mount installed and/or the actual measurement of the spacing between the two parts, front and back?

Thanks :)

http://s19.postimg.org/81z0nnnhf/image.jpg

Many flange bushing applications will allow metal to metal contact if the bushing wears out. If you're at the point of metal to metal contact, it's time to change bushings. We feel the design is such that the bushing life is maximized (no shear, minimal flange loading), and we've made the bushings relatively easy to swap when they do wear.

but since you asked, about 1/8" clearance on either side.

So, extra bushings are available to purchase in advance as well? If so, I am all I've this baby. I always like to have spare bushings on hand, when available. :)

Went to go measure but realized something weird.

http://img.photobucket.com/albums/v4...psb3350fad.jpg

It seems like the bushing is rubbing against the top plate, is this normal? will this eventually wear out the bushing?

It's been about 400 miles.

Thanks for that pic. I like the clearance. I am in!! Buying one ASAP.

I don't think there's anything to worry about there. Looks it just the a slight engine shift. I bet if you go drive it, it will be in a different position.

You just reminded me that one of our beta testers posted a concern similar to this, and I never responded to him.

In any case, yes, that's normal. You'll probably notice in a week or two that the whole face of the bushing flange is against the engine mount piece. It's minimal, but there is some transverse load on the engine. Not to worry, that's what the flange is for. Eventually, it can wear, as can the bushing in general. However, we've minimized the load across the flange to prolong life (especially compared to some other designs) and put the load where the load should go.

I talk to the design here

Happy question/answer day!

Absolutely. If you ever want part of an assembly we sell, don't hesitate to e-mail us through the website, or at orders@damondmotorsports.com. We'll be putting the bushing and sleeve kits on the website soon.