I recently installed a new transmission in my car along with some solid aluminum mounts. when I started it up and began driving, I noticed it sounded like I was inside a train engine or something, I can hear EVERYTHING.
I know having solid mounts will transfer more sound and vibration to the cockpit, but to what extent? It is worth noting that I feel vibration around 1500-3000 rpm (not exactly sure where) and then again at about 5000 that dies off after my rpms move past that.

Is this normal?

any info is greatly appreciated!

Thanks,

-Miles

 

welcome to the world of solid mounts, yes they transmit every ounce of drivetrain noise right to your teeth and skull.

 

The extra vibrations you're experiencing are likely due to resonance. This isn't a street car is it?

 

i love it...keeps me awake at night....the starter feel is the best. freaked me out the first time i felt that

 

yessir, I bought a crossmember from a fellow forum member and he threw in the mounts, I would reuse my old y-blocks but they are fried.
I used to run an rb header and a 3 inch straight exhaust, and a 4 puck clutch, I am not what you would call a stickler for comfort hahaha

Yeah I jumped when I started it hahaha

Thanks for the info guys!

 

I'm not either, but there's a limit lol

 

I went solid mounts in my s13 when i swapped to sr20. I loved the feeling. The sound sucked but it was bare-able.

 

Those things will rattle half your plastic dash pieces apart. Along with any poly mounts that are not of the double-sided design. Not bad for a racecar with all that stuff yanked. As long as all the electronics are isolated.

I don't think i need to explain how i know this...

 

It better not break my interior pieces!
Yeh, I installed solid engine/tranny mounts a month ago.
Love it.

 

You didn't leave rubber mounts on the engine did you?

I have polyurethane mounts and they're hardly noticeable.

 

I can hear every little gear spinning and oil slushing through the gear box.... And yes, the first time I started the car it freaked me out too. It's like getting that upgraded custom 6 speed transmission in GT5, all you hear is the gear whine : P

Upgrade to solid diff mounts and you get more mechanical tunes...

 

I get enough vibration just from competition engine mounts & front diff mount. I have no desire to go solid on any part of the drivetrain.

 

my first response to the titles was "well no ****!"

i've used factory mounts and solid mounts. I prefer my hockey pucks. above and below the frame with a through bolt design. I can adjust the mount stiffness by tightening down the bolt. used a torque wrench to keep the mounts even. and double nutted so it won't rattle loose.
I can feel all the vibration but not hear anything. very streetable.

 

You guys are a little too hard core for my tastes. I can't possibly see the need for solid mounts on a car that sees mostly street driving.

Any particular reason you guys chose solid mounts?

 

Because race car.

 

Everyone has their own idea of what is street-able. Personally, for a street driven car, no way I would tolerate the solid mount vibration and harmonics. If you are not driving the car lots of miles it will be fun. If you are daily driving it, I bet you get tired of it pretty quickly.


Now that you can just go ahead and remove the entire interior, it won't be any louder and you can cut some serious weight. And take the passenger seat out as well because no one else will care to ride along anymore!

 

yeah right, they are all race cars, lol

come on man, lol

 

That was more commentary than justification.

I find it amusing that folks who abhor the idea of swapping the engine (because it's the "soul" of the car and who needs torque anyway?) think that second guessing the suspension engineers by throwing chunks of aluminum and hockey pucks in is perfectly OK.

I've never seen a hybrid "street/track" car that was very good at either...too noisy and harsh for street and not serious enough for the track, pick one and go for it.

 

really need to harness all 200 horsies and all that torque with solid mounts, the street is serious business!

 

because you live life 15 seconds at a time

 

^14 with solid mounts

 

I demand a timeslip

 

Vin Diesel had solid mounts in his FD. Paul Walker had stock mounts in his Eclipse. Thats the main reason Vin D won, and not having solid mounts causes premature blowing of the intake manifold's welds.

 

True. This is the primary reason Mitsubishi started using the 'Danger to Manifold' warning light.

 

i guess if it HAS solid mounts it MUST actually be a race car, ergo it is really ******* fast