Any long-term negative effects with motor mount?

[Silver Ecstasy]

After checking out Polyurethane motor mount in person, I was completely thrilled with what a change it made to the car.

But I started thinking, just what kind of negative effects could this have on the car in the long term? I'm trying to gather a consensus of ideas from different people.

So far, people have mentioned that those vibrations are not only affecting you inside the car, but your trans mission and cv joints are going to feel the vibration and it's ill effects in due time. Anyones thoughts on this?

 

[stockms3]

If your going to race a stiffer mount is a LIFE SAVER!!

Wheel hop puts so much stress on the car......I wouldn't think you would have any negative affects but I'm not really a master when it comes to suspension and mounts.

 

[StealthWyvern]

TO me the only long term affects of the solid motor mounts would be the vibrations getting the those plastic intieror clips that hold everything in place. however in time the heat gets to them anyways.

 

[Silver Ecstasy]

Wheel hop is one of those things where, the compromise has got to be somewhere. The amount of power transferring to the front wheels + the lack of traction = what I assume is why the wheel hop happens to begin with.

If you stiffened everything up to have no flex somewhere, thats where I think your cv joints and other components would have to compromise in the long run.

I don't plan on racing my car hard, nor have I even ever really launched from a standstill. The car's not a straight-line performer, therefore I have no reason to prove otherwise. I have fun once the car is rolling.

 

[CWPspeed3]

I don't foresee any major negative side effect myself, I guess its just a trade off if you would rather have your engine doing all the shaking but then you have the lack of response in putting down power, not just from a launch with wheel hop but anytime you shift hard. Or having some extra vibrations go to your trans or cv joints and various other parts. Its not like the trans and cv joints arent getting any vibrations and these mounts putting excess pressure on them, if the car was built properly it shouldn't make a difference.

 

[ericrapp]

Wheel hop is one of those things where, the compromise has got to be somewhere. The amount of power transferring to the front wheels + the lack of traction = what I assume is why the wheel hop happens to begin with.

If you stiffened everything up to have no flex somewhere, thats where I think your cv joints and other components would have to compromise in the long run.

I don't plan on racing my car hard, nor have I even ever really launched from a standstill. The car's not a straight-line performer, therefore I have no reason to prove otherwise. I have fun once the car is rolling.

Wheel hop is a nasty thing for drivetrain abuse. Smooth wheelspin is actually less harsh than having the car catch right away on harder launches. Once you get serious traction with horse power the shafts and tranny start to be the most strained. Think about the all the pieces from the clutch to the tire on the pavement and those are the parts that will be most likely to fail. Then with a heavy clamping clutch the load is also distributed back to the motor. Long way round, a motor mount upgrade to remove wheel hopping is a great upgrade in my opinion. I did it and I am damn glad I did ha!

 

[Silver Ecstasy]

But as you said too, traction + hp. So if the mounts are helping more power get to the ground, either you're going to spin more, or spin less. Either way, shafts and trans will end up taking the grunt eventually right?

 

[ericrapp]

I was speaking of the tire upgrade I have to get more power down, sorry. The new motor mount with stock tires made for smooth wheelspin through second at roll and on occasion, a good bit of the third, with my modifications. Once I increased traction the load on drivetrain increased. And the car got to speed quicker although it seemed to do it with less effort. I am not a good explainer sorry.

 

[ericrapp]

There is something called shear point. it is similar to the first part to fail. A clutch will begin to slip if overloaded. As tires spin they catch more gently than if you dumped clutch at 6000 and the car lurched forward having total traction. even big time dragsters spin the tires down the track of course they do it the whole 1/4 mile

 

[Silver Ecstasy]

No it's alright. So in a way, you're agreeing that something has got to give. But only at that point with total traction and zero flex, is where other things have to give and THAT's when things start to break presumably.