1.6 ecoboost stage 2 vibration under load

[Thatredfocus]

Hey!

After the car was tuned stage 2 I got the following problem. When I drive in them 4,5 or 6th gear I have a strong vibration from the engine around 2500rpm when i accelerate. I have already replaced the upper and lower engine mount but there is no difference.
Does anyone recognize this problem?

it's about a 1.6 ecoboost stage 2

215hp 372nm

[Luke4efc]

Sounds like a driveshaft issue.

[Thatredfocus]

I've spoken to a few people who say it's the gearbox and the flywheel where the vibrations come from.

Al the wheels are balanced.

[Luke4efc]

It may well be the flywheel. It's hard to diagnose something like this over the Internet when you don't have much information given.

I'd get the car up in the air and check the CV joints for split boots/signs of play before forking out for a new clutch/flywheel though.

[Thatredfocus]

different people say its the flywheel, ive read someting about the dual mass flywheel that ik can vibrate under load 

[Thatredfocus]

The vibration feels like you want to drive away in too high a gear