Any opinions/experiences?

Much appreciated
Tia.

 

I only have experience with the Sachs 2.5 kit.

The clutch engagement is almost like stock, except it grabs a little quicker now. Pedal effort is exactly like stock. I think if I didn't tell you, you couldn't tell there's a aftermarket clutch in there unless you're paying really close attention. It holds the power nicely too, I have exhaust and tune on the car.

 

Sachs all the way!
from stock up to +900whp

 

The Sachs 2.5 kit will not hold up to 900whp. The 764 pressure plate is rated only up to 900nm of TQ, which is equal to about 550 lb/ft. Beyond that you'll need something else.

 

Hello Tom - torque at wheel or at the crank?

This page comes from cannga, who copied it from the Sachs website. I'm not sure if we're translation whp/torque at the wheels versus at the flywheel - not even sure if it matters as clamping force is dependent on the torque generated. It reports 659 lb/ft torque clamping force?

 

Sachs quotes it as "transmittable" torque, so my assumption is that's at the crank. I guess even if they're quoting it as "clamping force" I'd still consider that a closer to what we'd call a crank number.

In our experience, testing on both 997 Turbos and 997 GT2's, the 764 starts slipping exactly where Sachs says it will...right around 550-560 at the wheels. That sort of confirmed my suspicion that their rating is a crank number. Beyond that power level, you're on thin ice with this clutch IMHO.

 

We are using it with big GT30/Alpha30 kits on HIGH boost ( 28-29psi ) in many cars for a years with great success.

 

Who is "we?"

 

You have PM

 

You need a "Top Secret" clearance for that info buddy

To the OP: I have a Sachs 2.5 and love it. I plan on adding a tune to my exhaust as well.

 

as always thx guys for your wealth of knowledge