Helical exhaust valve with Küster 3 pin motor.

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Showing that a Küster 3 pin motor can be controller with a PWM+ signal. This was just proof of concept and the valve will be controlled by my @HolleyPerformance Dominator ECU.
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Miss the Holley EFI tutorial videos. I like the cutout here, amazing the hot exhaust doesn’t burn that motor up

bst_SS
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Hello, would you be able to help me figure out a way on how to use that motor with just a switch I can put under my dash So I can have the valves either opened or closed? I dont really care about having it variable. Thanks 👍 💯

JMAGG
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Thanks for showing this behavior. I tried a similar test with the stock actuators on my Mustang (actuator is made by Kuster too, I'm sure) but no combination of PWM frequency will get my analog behavior -- I get only full open or closed (as the PWM duty cycle crosses ~50% the valve flips completely). The valve only responds properly to 50-250hz PWM. Based on teardown pictures it looks like there is a one-time programmable controller inside and I wonder if Kuster burns firmware variants for each manufacturer and some have only 'digital' behavior. Could you share the exact model/Part # of the actuator you have? I'd prefer to be able to open them only part-way and replacing the actuators is an option.

hammer-fm
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Pin 1 = 12V, pin 2 = PWM + 12V, pin 3 = Earth? No need to connect pwm - ?

FreakensNL
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Hello is this a Küster flap with 3 or 4 Pins?

pkm