Technical Possible JTD Remap DMF Judder Solution

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Technical Possible JTD Remap DMF Judder Solution

DanielR

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Hey there, so I got my punto remapped (yay big win, its a brand new car)

Got 108 bhp / 241Nm @ 2050 rpm

Now as many of you will know, you will get a judder coming from the Clutch/Dual Mass flywheel.

I spoke with the mecanic and it's a well known problem with the vw touran, the DMF just can't handle the power and will get offbalance creating a judder. If I'm understanding this right.

Now the fix should be, to weld up the flywheel and get the whole thing balanced. Gearbox, Clutch, and flywheel.

Have anyone tried this? Heard about it?

Ofcourse there is a DMF for a reason, something with easier gear shift and more dampning on power spikes. But I'm willing to let that go, if I can fix the DMF judder, and then take the remap all the way to gearbox failing point @ 320Nm (so i've heard)
 

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Where did you get your remap from? I suppose you get it low because of the milage?
 
Danish tuner, and yeah, it was what they felt comfortable giving it.
 
It's a brand new Valeo 110bhp Clutch, havn't had any trouble from it. :)
 
No, didn't have the cash. =/ but, when this one goes, I will have the money to do it properly :)
 
My problem exactly, both my brother and dad are mechanics. And they did the clutch change. Now, suddenly, they dont want anything to do with it, ever again >_>.-.....
 
A DMF is used to control resonance more than anything else as well as spikes. It is usually made with a rubber section in the middle of the two differeing masses. Welding it up probably isn't an option. No one I know has ever done it in anything VAG I have seen (And I am talking of PDs with 250bhp and 450nm+). They all fit kevlar clutches with SMF's and adjust the idle speed up to about 1050 rpm so it doesn't rattle the car to bits.

You either map round this by putting peak further up the RPM range if possible or you don't boot it low down. I can't see the rest of the components getting to a power level where the DMF would do this on the Fiat although I appreciate you learn something everyday, however once it starts it will just get worse until failure (I have had a few fail.....)
 
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