[DeTomaso] Clutch Pedal Reduction Kit with Diaphragm Pressure Plate?

[Joseph F. Byrd, Jr.]

My "experience" is all keyboard.
As for the effect of the effort pedal reduction linkage, attached is a motion diagram plot comparing it to the original.  The fast "take up" offered is during the first 1" or so of pedal travel then the change in mechanical advantage of the linkage is 7/5 during the remaining stroke.

At one time I was hoping to write the force travel equation from pedal to clutch.  I believe the original mechanical advantage from pedal to TOB was 12.3:1 and with the linakge 17.2:1  As for comparison of clutches, I could not find any supplier that would provide the force travel values at the throw out bearing.  So if the force at full compressed at the TOB is 300#, the force at the pedal would be 24 w/o or 17 with linkage.

I wish someone would post the different in force for different clutches.

And what I see is another concern would be the clutch travel from engaged to released as the Pantera's exisiting only provides a vary limited travel at the TOB.  I am not sure of the transaxle yoke lever ratio, but I was calculating there was only 0.46" travel at the TOB.

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of Ken Green via DeTomaso
Sent: Wednesday, June 01, 2016 23:51 PM
To: DeTomaso Mail List
Subject: [DeTomaso] Clutch Pedal Reduction Kit with Diaphragm Pressure Plate?

 Given the mechanical characteristics of a diaphragm pressure plate, does it make any sense to use a clutch pedal kit with one?  My recollection is that the clutch pedal kit provides more leverage when the pedal is fully depressed, but a diaphragm pressure plate does that anyway?
Ken
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