I dont know which motor mount to go with...should I go with the polyurethane sold at banzai racing? solid aluminum ones on ebay? or Mazda hardened motor mount sold on rx7.com? What are the pros and cons of each one?

 

i wouldnt use the ebay mounts personally. i mean, its ebay how many quality aftermarket parts are on there that are namebrand and trustable?

 

the solid aluminum would give you alot more vibration

 

and i'm taking thats really bad or just annoying but performance wise good?

 

Go with the mazdatrix competition mounts... good stuff.. stiffer and feel great, but at the same time don't shake your teeth out.

 

If you have any fillings that you would like to keep, don't get solid mounts.

 

Although they are techically Mazda mounts (used to be Mazda Factory Racing, not sure what its called now) that they sell through their racing support site. Mazdatrix and a few other places sell them as well.

And to answer the question, they are awesome. Basically no engine movement at all, but they don't transfer much vibration either.

 

There should be less vibrations than solid mounts if you ran the competition mounts and had the mazdatrix strut bar with torque brace.

 

hmm check the awr racing mount, its very very quality peice.

complement it with the banzai poly tranny mount and thats golden...

i use the plastic crap from mazdatrix/mmr its okay, it works for what i want it to do... but if i had the money i'd switch to the combo i mention in a heartbeat.

 

i think i'm just getting the ones from racing beat they look legit and cheaper than everything else

 

Try some hockey pucks. I've heard of it as an old racers trick.

 

I don't know why anyone would want all that crap that is being advertised in terms of being an upgrade for engine / motor mounts.

It's just a piece of aluminum / plastic / polyurethane / etc. with a fricken bolt through it.
I've been bitching about these things ever since they became popular a few years ago.
These things work only in compression.
What happens in tension?
When the engine tries to pull against the bolt itself?
The aluminum / plastic / PU / rubber don't do jack **** when the engine tries to pull against the mount.
So what do you think happens?
You're right - the bolt BREAKS.
You're putting strain in the bolt and the metal engine bracket - something is going to fail.
Sure, these mounts are cheap, but there's a reason why they are cheap - cause they are easy to make.
Get a block of whatever - drill a hole in it - insert bolt / nut.
Viola - cheap *** engine mount.
Yes, they transmit a significant amount of vibration through the chassis cause it's going through the bolt.

I've seen one of the "popular" aftermarket engine mounts fail by the bolt breaking.

At least the stock mounts are design to handle the compression and tension forces of the engine.
These mounts actually pull a little when the engine pull against the two end studs.
This is why the stock engine mounts are best...or at least the stiffer Mazda competition ones.

I can see why race cars would go with solid mounts, but no street car should be running anything other than the Mazda units.

/RANT


-Ted

 

Mazdatrix comp motor mounts FTW I love em

 

I have the ones from rx7.com. Nothing to complain about in terms of vibration and very little movement.