DM TMM Reviews and Discussion

Discussion in 'Mazdaspeeds.org Official Parts Reviews Section' started by KingScumbag, Feb 13, 2016.

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  1. KingScumbag

    KingScumbag Gold Member

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    I know there are quite a few reviews out there so I'm leaving the post open to reviews and not just my review (singular).

    I am currently on a different setup from when I made this review but the mount has not changed in the slightest.

    Here was my review as a beta tester for the DMM TMM. Enjoy :)

    Alright guys i did a pretty long and drawn out breakdown of my experience. Read through it or don't this mount is a must...But anyways...

    DM Transmission Motor Mount (TMM) Review
    2007 Mazdaspeed 3


    [​IMG]

    Let me just start off by saying thank you to Matt and Damond Motorsports for trusting me and allowing me to BETA test one of their products. As a customer they have always been very helpful and supportive of the community. As a partner in product development I couldn’t have been happier to be assisting in reviewing one of their new parts in his collection of many stellar products. Matt chose me to be apart in BETA testing this mount because I have a quality assurance background and as an inspector of some high class high explosive munitions when I was in the Marine Corps I have a good eye for things on what may be right and what may be wrong that needs to be fixed for future reliability. I promised him I would give him just that. Is this Tl;Dr? Maybe, but its needed. On with the review, enough about me. ☺

    Vehicle Setup
    2007 Mazdaspeed 3
    - Built motor
    - Custom FJ Turbo Kit with Precision 5858
    - Lots of other things


    Some parts I have that would directly come into play for reviewing the mount are the balance-shaft delete, JBR 70duro Passenger Mount, Rear Motor mount and short throw shifter assembly. I also run OEM clutch and flywheel. I am currently in the tuning process so Id say my car isn't making much over 330-340HP where it stands and that’s just a guess.

    Product visual review
    I received the mount on July 12th 2015. Upon opening the box and unwrapping the parts and pieces and inspecting them the build quality is without a doubt spot on. The bushing is definitely of a higher quality then the bushings used in my previous aftermarket motor mount. The welds are great the finish/paint is thick and the overall construction of the mounts design is awesome. It is like no other.
    Included in the kit:
    - 1 base/trans support
    - 1 Mid/bushing section,
    - 1 Top/frame support plate
    - 1 Replacement bolt and washer for base/trans support (shorter bolt)
    - 2 Bolts and nuts for mid/bushing mount to base plate
    - 1 Longer bolt, nut and 2 washers for frame support plate to bushing mount
    - 8 washers if needed for (Shim/spacing) if needed on the frame plate.

    Installation
    Installation of the mount and its pieces were relatively easy. However I am not a beginner to the platform so I am sure an install time will vary on your mechanical experience and experience with the mazdaspeed platforms. It took me about 45 minutes to an hour for installation. It may have been quicker but I did not have any installation instructions and had to contact Matt on some questions as far as washers being used, locations for them and the orientation of the center bushing piece as it does have to be installed with the thicker lip side facing the driver side of the car. Comes with being a BETA tester! I will go into it further with my install write-up I wont bore you any further with the review.
    Driving Impressions
    WOW! Yes, wow! From the start of the car with the DM TMM installed I no longer get the infamous clutch chatter that usually comes with installing an aftermarket TMM on the Mazdaspeed Platform. I Immediate noticed this, as it’s always been an annoyance that every one eventually gets used to. NVH was minimal, FAR less than my previous mount when it was first installed until it was broken in. Even then the DM TMM still had less NVH. A lot of people I know and around the community that are running all three aftermarket mounts coupled with the Balance Shaft delete end up getting rid of the TMM and replacing it with OEM to tone down the vibes. I can say without a doubt this mount if anything takes it down quite a few notches and has made vibes much more bearable. Driving the car is when the “wow” factor came out on this mount! Not only is the NVH at a low. But the SHIFTS, OH THE SHIFTS were like butter during part throttle driving and going through the gears. The transmission is so planted yet the shifts are so smooth. I could only get a few hard pulls in on the mount as I am currently diagnosing some mechanical problems but on the 5 or 6 WOT pulls I have done with the mount installed have been nothing short of amazing. With my preivious TMM I always had to really get it into gear from 2nd to 3rd and from 3rd sometimes even getting her into 4th at WOT and shifting through the gears. Not any more, I am very pleased and its almost too smooth in a way but in a way that I could most definitely get used too!
    Conclusion
    In my final conclusion on this mount there is no way you can go wrong with the DM TMM. From its design that says “yea, im re-inventing the wheel”, the build quality and to the performance enhancement it 110% provides, it has definitely made a huge impression on me. I hope that you can take my experience and use it for your own and when you do decide to pull the trigger on this fine setup and you go out for that first drive you will know EXACTLY what I am talking about! Thanks for you’re time to read this and bearing with me.

    After Sending in my review I was contacted by Farhan asking me about the "negatives" but there really wasn't any. This was my Reply.

    "Farhan,
    I really don't have anything bad to say about it! For me it was not very difficult to install as I have a lot of experience. I'd say the hardest part of the install was getting the mid bushing section to line up and get the right way to the plate and get the bolt in place. I was using a scissor Jack to support the trans so I didn't really have much back and forth movement to play with or I'm sure it would have been a lot smoother. For install instructions I would recommend. Base mount>mid mount>top plate mount in that order. If you don't the mid mount bolts would be in the way. I didn't learn that from doing it it was just an observation. I'd have to say I am in love with the mount. All the clearances were perfect. Nothing had to be forced, the bushing is snug but not too tight."

    KingScumbag, Out!
     
    KingScumbag, via an iPad, Feb 13, 2016
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  2. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    Here's my video on the DM TMM.

     
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  3. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    Love my Damond TMM, and my final MD mount, the PMM, is on the way to replace my JBR 80 PMM.

    With 3 mounts (no BSD), I must say that I do have clutch out chatter (running FoMoCo in my '10 Speed), but that may be because I have three mounts. I also have a tad of in-gear whine. It's quite liveable, though. We'll see what replacing the PMM with the DM does.

    Very pleased overall, and would definitely recommend it.
     
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  4. Quigs

    Quigs Greenie Member

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    Wow, that JBR transmission mount looks rough. I'm thinking my JBR mounts will be coming out sooner than later. Still glad to see so many good reviews on the DM mounts!
     
  5. Gandalf

    Gandalf Greenie Member

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    Same here on the JBR TMM. Replacing soon with the DM TMM.
     
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  6. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    The official explanation from JBR was that "The power you're making is just a bit beyond what the 70's are meant for." At the time I was still on the K04. They sent 80 duro bushings to replace the bad 70's, along with a new top washer. I ended up donating that mount to a local and upgrading to the Damond, which was a great decision because the Damond holds just as well but the transmission noise is half or less what it was with the JBR 70. The only thing I don't like about the Damond honestly is the cost compared to the JBR. But you get what you pay for in this case. I haven't heard of a single Damond mount failing yet. Period.
     
  7. Navy_Mech2

    Navy_Mech2 Greenie Member

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    I may look into this. I have the JBR passenger and trans mount now and the clutch does chatter sometimes if I try and baby it. I originally thought it was because of the act clutch

    Sent from my SM-G900V using Tapatalk
     
    Navy_Mech2, via a mobile device, Feb 19, 2016
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  8. KingScumbag

    KingScumbag Gold Member

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    The bushing in the JBR mount when I pulled it out was actually caving in on itself and cracking in half.
     
    KingScumbag, via an iPhone, Feb 19, 2016
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  9. Quigs

    Quigs Greenie Member

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    Wow, if the DM mount cut the transmission noise from your JBR 70 in half then I can't imagine how quiet my car might get when I replace my JBR 88. I don't even mind the vibes or noise but so much in my car with the JBR Trilogy, but from everything I'm reading so far it sounds like the DM mounts will be quieter, vibes a bit less, are less prone to failure (so far), and will get me the same performance. Makes the price difference worth it IMO.
     
  10. KingScumbag

    KingScumbag Gold Member

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    My Speed still has the JBR PMM and RMM as of right now. Almost positive the RMM is on its way out as well.

    Once it's back on the road again I will be buying the DM rear and passenger.

    Even with the -* temps recently I took it out to run some oil through the motor and the vibes were no different than when it was warm out.

    (Besides in cold start warm up) which has always been kind of vicious with the BSD.
     
    KingScumbag, via an iPhone, Feb 19, 2016
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  11. Quigs

    Quigs Greenie Member

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    That's good to hear too, my car vibrates so much worse in the cold with the JBR mounts.
     
  12. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    I never got to experience the cold with my JBR mount because it didn't make it more than 5 months. I will say it takes ridiculously cold temps (like single digits) for the Damonds to transfer more vibes. And at that point the car is making so many other scary noises that the mounts are hardly on my mind.
     
  13. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    This arrived today, just in time for my birthday :D
    upload_2016-2-19_12-38-48.png
    As always, super fast shipping, and excellently packaged to keep everything safe!
     

    Attached Files:

    Last edited: Feb 19, 2016
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  14. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    Nice. I'm not the only one with black/black/black mounts now.
     
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  15. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    Yeah, I decided on that because of some dusting I saw with DM red bushings:
    upload_2016-2-19_13-0-25.png upload_2016-2-19_13-0-51.png
     
  16. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    Mine have developed that same reddish color over time and I have the black ones. I think it's just something from the road salt or something interacting with the mount.
     
  17. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    That could be a possibility, but the fact that the dusting is the exact same color as the mount raises an eyebrow. But you have the black ones? Hmmm...

    I personally thought that as the mount vibrates and breaks in, microscopic particles of the polyurethane are creating a dust cloud around the mouth and stick, for whatever reason, whether it be moisture/condensation in the engine bay, or static electricity. Now I'm not so sure.
     
  18. Gandalf

    Gandalf Greenie Member

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    I went red bushing, adds a little under hood color.
    [​IMG]
     
    Gandalf, via a mobile device, Feb 19, 2016
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  19. VTMongoose

    VTMongoose John/MD1032 Greenie Member

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    Here's a pic I found of a JBR with the same thing. (not my image so I'm not hotlinking it)

    http://i1138.photobucket.com/albums/n533/davidgwalker/Mobile Uploads/image_31.jpg

    Mine looks likes this now too. See it here:



    No idea what it is but I'm not worried since the mounts are aluminum. And badass.

    I had this epiphany the other day that honestly until this thread came along, for the first time since I bought my car, there was this long period where I didn't even think about my mounts (since shortly after I installed my last Damond mount, the TMM). Ever since I got this stupid car with this dumbass 3-mount system I had been wincing every time I tried to shift quickly or when I lifted off the throttle aggressively. The Damond mounts not only tolerate my abuse, they do it with style and (acceptable) comfort.
     
  20. David

    David Greenie Member

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    I have all 3 mounts and bsd and act 6 puck and the vibes tickles my balls. I love it. Thank you Damond
     
    David, via an iPhone, Mar 10, 2016
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