Author Topic: Clutch Switch - Manual Conversion w/Hyd Clutch  (Read 2171 times)

Offline GoodysGotaCuda

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Clutch Switch - Manual Conversion w/Hyd Clutch
« on: January 21, 2017 - 09:50:11 AM »
I am doing a manual conversion and am curious what others are using for a clutch switch - mechanical or hydraulic?

If mechanical, are you using a factory switch, or did you rig up a brake switch? Pictures?


I need the input for my starter relay as well as flatshifting.
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Offline shawge

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #1 on: January 21, 2017 - 01:25:21 PM »
Made up a bracket to hold a micro switch in place.

Pictures here
http://www.cuda-challenger.com/cc/index.php?topic=111573.msg1102005#msg1102005
- Jerry

Offline GoodysGotaCuda

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #2 on: January 21, 2017 - 06:27:07 PM »
Made up a bracket to hold a micro switch in place.

Pictures here
http://www.cuda-challenger.com/cc/index.php?topic=111573.msg1102005#msg1102005


Thanks. Does the switch only actuate when the clutch is fully depressed, or once the pedal moves from its resting position?
Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

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Offline 1 Wild R/T

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #3 on: January 22, 2017 - 02:29:13 PM »
Thanks. Does the switch only actuate when the clutch is fully depressed, or once the pedal moves from its resting position?

Since the function of the switch is to make sure the clutch is fully released when starting the car it makes sense that the pedal needs to be fully depressed... lots of ways to do it,
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Offline shawge

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #4 on: January 22, 2017 - 02:47:26 PM »
Fully depressed, there is some wiggle room but not enough to detect when it moves.  For that, the bracket would need to be modified.
- Jerry

Offline GoodysGotaCuda

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #5 on: January 22, 2017 - 04:25:23 PM »
Since the function of the switch is to make sure the clutch is fully released when starting the car it makes sense that the pedal needs to be fully depressed... lots of ways to do it,

Agree, but for this application, if your foot is on the clutch, I'm happy to crank it over. I need the switch to trigger as the pedal begins to move for the flat-shift, otherwise the clutch will slip during WOT shifts.

Just looking to see what others have done.
Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

Wheel & Tire Specs:Link

Offline 1 Wild R/T

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #6 on: January 22, 2017 - 07:23:15 PM »
Agree, but for this application, if your foot is on the clutch, I'm happy to crank it over. I need the switch to trigger as the pedal begins to move for the flat-shift, otherwise the clutch will slip during WOT shifts.

Just looking to see what others have done.

Not sure I follow?  I'm guessing your gonna use the clutch switch as an input to the PCM to momentarily kill the engine on WOT shifts?
JS27N0B 70 Challenger R/T Convertible  FJ5 Sublime, Show Poodle w/90,000 miles since resto
WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
RM21H9E 69 Road Runner Coupe R4 Performance Red, Sold...
5H21C  65 Falcon 2 dr Wagon... Dog Hauler...

Offline GoodysGotaCuda

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #7 on: January 22, 2017 - 07:31:32 PM »
Not sure I follow?  I'm guessing your gonna use the clutch switch as an input to the PCM to momentarily kill the engine on WOT shifts?

Cut fuel, yes. It's for a "no lift shift", "shift cut" function. The clutch switch is also the same input for the 2step rev limiter as well as the starter relay. It stays busy.  :biggrin:
Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

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Offline 1 Wild R/T

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #8 on: January 22, 2017 - 07:37:27 PM »
Sounds like you should have two switches on the clutch, home & max travel....

Old school was stab & grab...Don't miss unless you want to dump $$$
« Last Edit: January 22, 2017 - 07:39:10 PM by 1 Wild R/T »
JS27N0B 70 Challenger R/T Convertible  FJ5 Sublime, Show Poodle w/90,000 miles since resto
WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
RM21H9E 69 Road Runner Coupe R4 Performance Red, Sold...
5H21C  65 Falcon 2 dr Wagon... Dog Hauler...

Offline Rolling_Thunder

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #9 on: January 23, 2017 - 08:59:06 AM »
Even I am confused with what you need....      you need a clutch switch for a safety interlock (allowing the engine to crank when the pedal is depressed) but what exactly do you need the other switch for?  (shift cut) ?  Do you need a input while the pedal is NOT depressed at all?   
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Offline GoodysGotaCuda

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Re: Clutch Switch - Manual Conversion w/Hyd Clutch
« Reply #10 on: January 23, 2017 - 10:15:13 AM »
 Just looking for switch placement with a hydraulic clutch/auto conversion setup.

Not really looking for an electrical design review, I have that covered.


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Build Page: Goody's 'Cuda Build Page
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum

Wheel & Tire Specs:Link