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Motor & Transmission Mounts

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Old Nov 1, 2005 | 05:21 PM
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Motor & Transmission Mounts

I was wondering where i can get either polyurethane or solid aluminum mounts for my 2nd gen? Can anyone send me to the right direction? I already did a search and couldn't find anything.....thanx
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Old Nov 1, 2005 | 05:38 PM
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I don't think you want solid mounts. Hard mounts would not absorb the vibrations created by the drivetrain. You would definetly feel the vibration inside the car and something would eventually break. The stiffer the mount, the more vibes you will feel.
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Old Nov 1, 2005 | 05:56 PM
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Do you think something would break? I thought i could just gain torque, and all that, but if it breaks then i don't want it then....thanx
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Old Nov 1, 2005 | 06:05 PM
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Poly mounts won't break, but you may fill more vibration inside the car. My Mazda uses OEM mounts. I tried poly on my Ford Probe but vibration was undesireable, so I went back to the softer OEM mounts. Its a matter of personal preference.
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Old Nov 1, 2005 | 06:06 PM
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Yea, i didn't think that it'd break, i never heard of that, but i have heard about the vibration, and i'm not exactly sure how bad it is, but isn't a rotary alot less vibration than a piston driven car?
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Old Nov 1, 2005 | 06:27 PM
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there are complete poly mount sets on ebay for sale, and there are aluminum motor mounts as well there. Go with poly. mounts, or replace them with factory ones. I personally would stay away from solid ones, but its up to you.
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Old Nov 1, 2005 | 06:52 PM
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Originally Posted by pfcmooney
Do you think something would break? I thought i could just gain torque, and all that, but if it breaks then i don't want it then....thanx
yeah you dont want solid mounts. they could rattle your exhaust bolts loose
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Old Nov 1, 2005 | 07:26 PM
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Originally Posted by cool_as_crap
yeah you dont want solid mounts. they could rattle your exhaust bolts loose
sorry but.... WRONG!

granted with solid mounts there is significantly more wear to the drivetrain (transmission, driveshaft, differential), but it's not about to "rattle your exhaust bolts loose". if anything it's less wear on the exhaust system because the engine doesn't move around as much!
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Old Nov 1, 2005 | 09:29 PM
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http://www.mmr-direct.com/

How many people actually have experience with this?
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Old Nov 1, 2005 | 09:48 PM
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From my understanding the harder motor/transmission mounts will not gain you torque but instead keep the engine/transmission from jumping as much when you shift you that you get faster shifts.
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Old Nov 1, 2005 | 10:06 PM
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Originally Posted by pr0digy
sorry but.... WRONG!

granted with solid mounts there is significantly more wear to the drivetrain (transmission, driveshaft, differential), but it's not about to "rattle your exhaust bolts loose". if anything it's less wear on the exhaust system because the engine doesn't move around as much!
well, i thought solid mounts would be about the same as bad mounts (rubber detiorated on normal onee) like mine are right now, wich yes is loostening my exhaust. have to tighten them every two weeks or the bolts come off completely, since the exhaust is right next to the mount, and all of the vibration transfered to the chassis

Last edited by cool_as_crap; Nov 1, 2005 at 10:08 PM.
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Old Nov 1, 2005 | 10:10 PM
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ebay.com
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Old Nov 2, 2005 | 12:28 AM
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I bought engine and tranny mounts from banzai racing. Remember that these, compared to stock parts and a lot harder so all the vibration will now be transferred somewhere (i.e. the rest of the car, you, etc.)

My friend took a ride in it (passenger seat) and I believe his comment was "I think my colon is shaking." ... just a warning to you.
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Old Nov 2, 2005 | 09:50 AM
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I would suggest getting the Mazda Competition mounts. They are harder than stock, but use the same system as the stock ones. If you dont want to go with stock or solid, they are a much better option than the cheap polyurethane ones. www.rx7.com
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Old Mar 4, 2008 | 09:59 PM
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Is the only way to change the motor mounts is by using a engine jack (overhead)?
It looks as if there is no way to jack the car underneath with the oil pan in the way.
Can anyone speak from experience? Thanks
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Old Mar 5, 2008 | 12:52 AM
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I jacked up the engine with a bottle jack under the bellhousing before in order to take off the oil pan. Just make sure to jack as far forward as you can get.

I've got the Mazda Comp engine, transmission and diff mounts and reccomend them. Stiff enough to be noticably better, not so stiff that you get much worse NVH.

I've definetely heard of the stud through the puck style mounts breaking the stud.
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Old Mar 5, 2008 | 05:57 AM
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Try www.banzairacing.com They have adjustable poly mounts for the engine, and poly mounts for the tranny as well.
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Old Mar 5, 2008 | 07:17 AM
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Last time I changed motor mounts, I used a floor jack, (2) 2x6's, and lifted it by the oil pan. When it was time to remove the bracket that bolts through the oil pan, I just removed the bolts, and worked very quickly and used a rag to keep too much oil from leaking everywhere and put it back on in a hurry. Not much oil leaked and my buddy got some new OEM mounts on his 87 T2. We poured a bit more oil in to top it off and he rode into the night.
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Old Mar 5, 2008 | 08:56 AM
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I highly recommend the comp mounts. They are the same as stock, but 40% stiffer. This way you have reduced motor movement, but don't have the rediculous NVH you get from solid mounts. I have them and there is no engine movement to speak of.
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Old Mar 5, 2008 | 07:31 PM
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Unless you REALLY want a stiff driveline and can put up with the increase in vibration and noise I would recommend you get the Mazdaspeed comp mounts.

I have the Banzai poly mounts. They are, at first, brutal. the clutch uptake is significantly improved, and so is immediate off-throttle response, but they are loud and will cause rattles and squeeks you didnt know existed. further you will hear all the bearing in your tranny, all the time, and at WOT the vibrations will be enough to making hearing anything else nearly impossible.

Now, after 1k miles or so it defintely softens up, but if you arent seriously hardcore about NVH then it may still be too much. I would HIGHLY suggest you ride in a car with poly mounts before getting them.

On a good note though: The engineering on the mounts is vastly superior to the stock mounts. they actual though through the process and its makes installation and access to that area significantly improved.


BC
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Old Mar 5, 2008 | 11:00 PM
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Originally Posted by Jager
http://www.mmr-direct.com/

How many people actually have experience with this?
I brought from them the diferential mounts. No problems.
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