drkm3

I picked up the car today. And I already have a question. The rattle at ideal from flywheel is very loud. My last Porsche was 996TT. My question is that there is very different vibration at idle between I pressed the clutch and released. Is this normal? TIA.

GrantG

Yes, normal.

Md11skipper

Very normal, this also gives the car such desirable character due to its much lighter flywheel (single mass).

mooty

yes, normal. it's the light wt flywheel.
the louder the better.

Nizer

it's just letting you know that it likes you. like a cat purring when you pet it.

997gt3north

while stopped in neutral, the following is normal for a Porsche single mass flywheel (lwfw) on a gt3 engine

left foot in = "no noise"
left foot not in = "noise / rattle"

10 GT3

Yes it is normal and should be even more noticeable than the previous RS. The 10' RS flywheel is about 3 lbs lighter than the 997.1 RS flywheel

hansw

It's not the flywheel that rattles, its' the transmission. The lightweight flywheel doesn't dampen crankshaft vibrations, which get coupled into the transmission when the clutch is not depressed.