Okay I have a question here, I read through a ton of threads on this subject but I havent seen one that answers my question so here it is:

Do aluminum motor mounts pose any sort of threat to the drive train? Will it break anything such as the driveshaft? Yes I am aware that they might cause excessive vibration or noise, this is not a daily driver FC and the engine is being rebuilt as we speak.

The reason why i ask this is because I was speaking with a friend of mine and told him I was considering these and he said that they might cause problems with the drivetrain breaking due to excess stress or misshifting on a high load. I can see that being a problem on piston engines where they have a lot more movement on their engines that ours does, can anyone shine some light here for me?

 

No issues from what I've seen.

The problem with any sort of aluminum mount is that you will get drivetrain vibration. It's always going to feel like the driveshaft is out of balance.

 

If you have solid mounting on the engine and transmission, there should be less movement and less stress on the driveshaft. but tons of noise inside

 

Yeah I've heard about the nose and vibrations I just wanted ti find out if the was any worries on damaging anything, like I said my friend deals with piston engines soon cam see it being a problem on those because of the engine movement

 

Why not use the mazda comp mounts? I have them on my car and they are very stiff, yet I don't have tons of vibration.

 

Aluminum mounts are cheap enough that if I don't like them I can swap em out. But like I said if the only thing is the vibration them don't mind it.

 

Hockey Pucks work if you want something firmer and it also drops the engine about a 1/4in. Ive been on them for a few years and the vibration is but not completely unbearable.

4 pucks, (2) super glued together, drill a hole through the center. Costs 10 bucks.

 

I have delrin mounts for almost two years and I drive the car everyday and I don't mind to vibration. I haven't broken anything with putting the car through trackdays (road racing, drifting, auto X, and drag racing) =) oh and i paid $30

 

Update review

I just got the car back and have been driving it all week plus the two hour trip home. I don't notice any vibration difference, the car feels great and I would actually recommend these to anyone who asked about them.

 

All the mounts with a single through bolt are a bad design as soon as the tension side is loaded the bolt just becomes a solid mount no matter what material is between it. This causes nearly as much vibration/noise transfer as a solid mount.

 

My engine is so loud that all the noise and vibration comes from me driving and my exhaust humming

 

I barely notice any vibrations on mine. I had a Hyundai Tiburon years ago and I used 3M wino-weld to fill the holes on the stock mounts. Just from that alone about jittered my teeth out. The rotary is a much smoother engine, and I really only feel any vibes at a VERY specific rpm (momentarily) and it's not much at that. I imagine that if I fix a couple of the dash rattles that it'd be almost unnoticeable.