Clutch slip on shift

Cam · 11-07-2009, 09:13 AM

I've wondered about the "slip when you shift" mandate to protect the driveline. When the shift is made the shock load instantly goes through the driveline. The additional load of the higher gear then pulls the engine down, reducing certrifugal clamping force on the clutch and it slips.
By the time the clutch slips any damage has already been done. Setting up the clutch to slip in the shift seems to be after the fact. If it's slipping a bit to keep the engine from falling below it's power band thats a different story.
Cam

Pat Cook · 11-07-2009, 09:38 AM

Kinda like the way new cars detorque the engine on WOT shifts, by reducing engine power to save the clutches......

11-07-2009, 09:13 AM	#1
Cam Junior Member Join Date: May 2004 Location: Prince George, BC, Canada Posts: 83 Likes: 5 Liked 0 Times in 0 Posts	Clutch slip on shift I've wondered about the "slip when you shift" mandate to protect the driveline. When the shift is made the shock load instantly goes through the driveline. The additional load of the higher gear then pulls the engine down, reducing certrifugal clamping force on the clutch and it slips. By the time the clutch slips any damage has already been done. Setting up the clutch to slip in the shift seems to be after the fact. If it's slipping a bit to keep the engine from falling below it's power band thats a different story. Cam __________________ Cam Chowen 6067 1994 Camaro C/S

11-07-2009, 09:38 AM	#2
Pat Cook Member Join Date: Jun 2002 Posts: 175 Likes: 0 Liked 0 Times in 0 Posts	Re: Clutch slip on shift Kinda like the way new cars detorque the engine on WOT shifts, by reducing engine power to save the clutches...... __________________ 67 Ford Fairlane F/SA 749