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Old 02-02-2009, 11:19 PM   #1
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Default Mazdaspeed Comp Eng Mounts -- Initial Impressions

I just threw on the Mazdaspeed competition motor mounts. I bought them from Flyin' Miata a couple weeks ago. The install was a huuuge bitch as I decided not to remove ANY components besides the motor mounts. ~2 hrs from jacking the car up, turning my arms into pretzels, and letting it back down. My old mounts were not torn up. In fact, they look to be in fairly good condition.

IDLE: Definitely noticed more vibration coming from the motor. It almost shook the car like a slight misfire, although at double the speed of normal misfire. In my personal opinion, it's something I can get used to, and actually forgot about it during most of the first drive.

DRIVING: Noticed almost zero surging/bucking in first gear upon throttle tip-in, tip-out. The driveline felt very direct and smooth. Under boost with old mounts, throttle tip out would result in engine RPM's resonating. Comp mounts have no such thing. Shifting also felt a lot smoother/easier to get into the gate. Shift **** itself seemed to move less under power.

Check it:
OLD
oldmounts.jpg?t=1233631538

NEW
compmounts.jpg?t=1233631372

SHREDDING TIRES: This was the most notable change. OK, FYI... so I have bald Azenis in 30F weather. They don't grip well. With the old mounts, the car would wheel hop like crazy in 1st and all through 2nd. Even from a roll. Rear end would just bounce around. Terrible. With comp mounts the tires just spin smooth and controlled. The back end would swag a bit, but very progressive and controllable. I was impressed.
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Old 02-02-2009, 11:23 PM   #2
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nice...pictures dont work though
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Old 02-02-2009, 11:26 PM   #3
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OK, I'm an idiot... they should work now.
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Old 02-03-2009, 12:18 AM   #4
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Quote:
Originally Posted by zzyx7 View Post
They don't grip well. With the old mounts, the car would wheel hop like crazy in 1st and all through 2nd. Even from a roll. Rear end would just bounce around. Terrible. With comp mounts the tires just spin smooth and controlled. The back end would swag a bit, but very progressive and controllable. I was impressed.
****, I'm ordering them. I've already toasted one diff to wheelhop, don't need to do another.
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Old 02-03-2009, 12:30 AM   #5
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funny thing.. i have mazdacomp mounts and i get all of those problems.....
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Old 02-03-2009, 01:09 AM   #6
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You have poly diff mounts?
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Old 02-03-2009, 07:51 AM   #7
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I think the diff. mounts are still stock.
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Old 02-03-2009, 09:26 AM   #8
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Old 02-03-2009, 10:24 AM   #9
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I've noticed the most improvement with poly diff bushings....haven't installed the MS motormounts just yet. I don't get any wheel hop with the diff bushings installed.
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Old 02-03-2009, 12:13 PM   #10
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I like mine as well. Can't wait to install the diff mounts I got from Sav.
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Old 02-03-2009, 12:13 PM   #11
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Mazda mounts and poly rear mounts and still wheel hopping!

One Torsen blown up already, I love wheelhop!
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Old 02-03-2009, 01:47 PM   #12
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Mazda mounts and poly rear mounts and still wheel hopping!

One Torsen blown up already, I love wheelhop!
Stop driving like a tool.
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Old 02-03-2009, 02:38 PM   #13
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I'm thinking of putting these in instead of my MMR mounts. Has anyone driven back to back? The MMR mounts are shaking my filings out.
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Old 02-03-2009, 02:51 PM   #14
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I have none of these problems you people mention and im on the stock mounts.
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Old 02-03-2009, 02:57 PM   #15
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I have none of these problems you people mention and im on the stock mounts.
Needs moar power
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Old 02-03-2009, 03:10 PM   #16
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Mazda comp motor mounts plus solid diff mounts = win. I enjoy.


I cannot stand solid motor mounts. If I had a race car I'd have them, however. The feel is great, the vibrations are not.
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Old 02-03-2009, 05:53 PM   #17
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Quote:
Originally Posted by Saml01 View Post
I have none of these problems you people mention and im on the stock mounts.
maybe one day you'll stand up to make #1.
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Old 02-03-2009, 07:19 PM   #18
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Quote:
Originally Posted by Braineack View Post
Mazda comp motor mounts plus solid diff mounts = win. I enjoy.


I cannot stand solid motor mounts. If I had a race car I'd have them, however. The feel is great, the vibrations are not.
Are the MMRs totally undoable, or can they be driven on the street a little? My car isn't exactly the kind of car you go on dates in anymore, so if there is a feel difference that you really notice I want the MMRs, provided I'm not going to chip a tooth.
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Old 02-03-2009, 07:55 PM   #19
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my car has solid motor mounts of some sort. I personally don't care for them and will be replacing them with comp mounts which I have.

I don't think you'll have a problem with them though Sav. They're not awful. They're just a little more rough than you'd expect from a street car.
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Old 02-03-2009, 07:57 PM   #20
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Solid rear mounts and flexable front mounts just seem like a bad idea. That is a lot of torsional stress to put on the PPF, diff, and transmission case.
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