i've started to get a bad vibration after oneclicking my fabia vrs, its terrible between 2000 rpm to 2300rpm, i dont know if its clutch slip wheelspin or what

when you r excellerating out of a 30mph in 4th gear progressively put the power down and you gett this massive judder just over 2000rpm. i think this is where the peak torque is. but the strange thing is the revs are not rising sharply so it does not feel like clutch slip,

but you if you where to drop to third and floor it you wont get it, i'm a little unsure what it is, but it looks to be clutch related.

just wondering if any one else has experienced this

It's the DMF. The way it works is two rotating discs, heavy plates (mass) with a bunch of heavy duty springs between them. The vibration starts when the engine is trying to turn the flywheel on the engine side so hard that the springs are at maximum extention, at which point it forces the flywheel on the clutch side to follow. Then because the engine is doing the taka-taka-taka punch thing (each time the fuel explodes in a cylinder it accelerates the flywheel, then it slows down whilst it 'preps for the next one'. That in turn causes the vibration as the second flywheel catches up until the next cyclinder 'fires'.

I've used a lot of quotes etc because I've probably used bad technical terms but it comes down to engine accelerates/decellerates (sp?) when a cylinder burns it's fuel/nothing is exploding, respectively, and the flywheel at the clutch end just kinda rotates