3200 RPM Wobble?

[droidlogik]

So I keep getting told this is normal, but at 3200 RPM if I stay at that RPM steady for a few seconds, I start getting this loud wobble/vibration that feels and sounds like it’s coming from the mid/rear of the car. It’s really noticeable on the highway cruising in 5th at that RPM too. Here’s a quick video attached, listen back a few times you’ll hear what I mean. It’s not a small piece of plastic or the steering wheel you’re hearing it’s literally vibrating the whole car.

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[CTR]

Seems normal. These engines vibrate a lot in the 3-4K RPM range. They took out the balance shafts when designing the K20C1.

 

[SilverRocket]

I've been questioning this since May. The more people ask about it the more I'm confident this is a quirk of the design.

There was one member who said it was fixed by replacing something in/near the transmission housing but we never heard back.

I just hope it's not a massive recall issue.

My solution, go from 3k to 4k REALLY REALLY fast and shift at 7k

 

[Victorofhavoc]

So I keep getting told this is normal, but at 3200 RPM if I stay at that RPM steady for a few seconds, I start getting this loud wobble/vibration that feels and sounds like it’s coming from the mid/rear of the car. It’s really noticeable on the highway cruising in 5th at that RPM too. Here’s a quick video attached, listen back a few times you’ll hear what I mean. It’s not a small piece of plastic or the steering wheel you’re hearing it’s literally vibrating the whole car.

I would jack up the car and check for any contact area between exhaust and other chassis/suspension parts. If you're feeling it "literally vibrating the whole car", then it's not normal. I do not get a vibration through the whole car at any point in the rev band. Wastegate ringing, wastegate rattling, plastic resonating, rubber ticking, and a bunch of other interior noises are all there, but there is no physically felt vibration stemming from the driveline inside the cabin.

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