Hydraulic TOB with 3 finger Clutch

Hydraulic TOB with 3 Finger clutch w or w/o overcenter spring

  • With Overcenter Spring

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plumkrazee70

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How may people are running a Hydraulic TOB with a 3 finger clutch with or without the overcenter spring?
 
It depends on how much base load the pressure plate has. Get it low (where it should be) and you won’t need the OC spring. If your clutch works your leg to death, you’ll need to keep it.
 
You confused me, isn't overcenter spring for the mechanial pedal assembly?
You, I guess, are using your pedal with the master cylinder.
I have a American Powertrain TOB with an old Airheart cylinder in the floor.
The MC returns the pedal with no spring.
However, the PP I was using, B&B 3200 lbs pressure, was too much effort for my leg.
I went with a McLoad diaphragm unit and have been happy with that setup.
 
You confused me, isn't overcenter spring for the mechanial pedal assembly?
You, I guess, are using your pedal with the master cylinder.
I have a American Powertrain TOB with an old Airheart cylinder in the floor.
The MC returns the pedal with no spring.
However, the PP I was using, B&B 3200 lbs pressure, was too much effort for my leg.
I went with a McLoad diaphragm unit and have been happy with that setup.

Yes, the over center spring is for the mechanical assembly AT THE PEDAL and was added to assist the driver in pedal effort on a B&B PP. I was curious if anyone kept or removed it when going with a Hydraulic TOB.

You answered my question though: However, the PP I was using, B&B 3200 lbs pressure, was too much effort for my leg.
 
Ok, good.
However I am using an S&W pedal with the levers they install for rods and such.
My geometry is a lot different from your pedal and linkage.
I actually had to drill another pivot hole between the two that come on a floor pedal system.
So I was playing with the pedal ratio.
 
Yes, the over center spring is for the mechanical assembly AT THE PEDAL and was added to assist the driver in pedal effort on a B&B PP. I was curious if anyone kept or removed it when going with a Hydraulic TOB.

You answered my question though: However, the PP I was using, B&B 3200 lbs pressure, was too much effort for my leg.


Wow, that’s a TON of plate pressure. I’d take it apart and drop it down to 2600 pounds. That’s probably 200 pounds more than it needs to be.
 
Yea, I had an NOS green cover Direct Connection PP for a SS Barracuda or Dart.
I had purchased it for a 440 drag car years ago.
 
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