07-08-2012, 08:22 PM
My Sachs was sprung and took lots of abuse in my ownership with ~ 285lbft with a standard Valeo pressure plate. That peak torque was coming in at 2000rpm or so in 5th too.
I thought my Sachs was juddery, so a four paddle *unsprung* clutch is going to be pretty much unusable in traffic...
You also have to consider that having a LOT of torque without any kind of transmission damping could result in more load/damage to the drivetrain further down. Just watching my HDi with Sachs four paddle sprung plate moving around at low speed (parking etc) and how the wheel wobbled as the clutch was clutching/de-clutching made you wonder.
That is the exact reason modern diesels have DMF or stall mapped in for low rpm operation, to protect the drivetrain from the low-frequency vibrations at high torque that are possible...
That is all just my 2p... perhaps some paddle plates are less aggressive on the material and judder less, but going on what I've read, unsprung plates are as bad again as sprung plates vs OEM clutches for judder, so I'd deem it not ideal for road use!?
Hmmm
Dave
I thought my Sachs was juddery, so a four paddle *unsprung* clutch is going to be pretty much unusable in traffic...
You also have to consider that having a LOT of torque without any kind of transmission damping could result in more load/damage to the drivetrain further down. Just watching my HDi with Sachs four paddle sprung plate moving around at low speed (parking etc) and how the wheel wobbled as the clutch was clutching/de-clutching made you wonder.
That is the exact reason modern diesels have DMF or stall mapped in for low rpm operation, to protect the drivetrain from the low-frequency vibrations at high torque that are possible...
That is all just my 2p... perhaps some paddle plates are less aggressive on the material and judder less, but going on what I've read, unsprung plates are as bad again as sprung plates vs OEM clutches for judder, so I'd deem it not ideal for road use!?
Hmmm
Dave