rotary1307cc

iTrader: (5)

I have about 25 dollars Into it with the heatsink and grease

Project GatTagO

iTrader: (7)

I am just curious to know how these coolant can controllers are different from a regular SSR, if at all....Anyone have any thoughts?

Andrew

Kenova

iTrader: (4)

Dragging this back from the grave for updates.
Would be interesting to see how well the SSR is holding up in regular use.

Ken

Project GatTagO

iTrader: (7)

I am wondering how well the pump is holding up. I've been reading a lot about this stuff and it seems that brushed electric motors don't really like running at a reduced voltage. However, brushless motors seem to be the way to go.

Andrew

Forcefed86

iTrader: (4)

I was under the impression PWM controlled SSR relays don’t use lower voltage. They pulse a steady bat voltage to vary the speed. This shouldn’t harm typical brush style motor. They are used very commonly these days to control fan speeds in most cars, which are all brushed electric motors.

The solenoids themselves can get very hot though depending on the freq you run them at and will have a short lifespan without a good heat sink.

rotary1307cc

iTrader: (5)

I ran it for a year like that no problem with pump or SSR. I needed more fuel so I run an 044 full time now and stage the big pump on and off based on load.

stevieturbo

Yup. PWM'ing or pulsing a motor like that is the correct and safe way to vary speed and will do the motor no harm at all. You're just switching it off and on very fast. Not reducing the voltage as such.

Kenova

iTrader: (4)

That's encouraging. I may have to give it a shot.

Ken

rotary1307cc

iTrader: (5)

You will see reduced voltage if you have a meter hooked up at the pump

Project GatTagO

iTrader: (7)

For anyone that wants to know more, here is a link that is interesting....start at post #54...

http://forums.holley.com/showthread....-PWM-Fan/page6

Andrew

stevieturbo

Because neither the meter or your eyes can see fast enough for a true picture. Put an oscilloscope on it

rotary1307cc

iTrader: (5)

I know that, I said you will see a voltage drop on a meter

cajundragger

iTrader: (2)

check out a grand caravan van controller as well.

It's also the correct frequency to work if you want to run PWM on the fan output on gm computers.

https://ls1tech.com/forums/conversio...connector.html