Progressive nitrous solenoids

Begle1

Begle1

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What nitrous solenoid should I use if I'm going to drive it with a PWM?

And what PWM should I use, preferably that is controlled by a 0-5 volt signal?
 
Any old nitrous solenoid work?


What PWM frequency are guys using?
 
I hear that some solenoids can be pulsed down to a lower duty cycle than others?
 
You say 14 hz, a NOS manual I found said 25-30 hz, all of which are slower than the 100 hz that PWM's out there readily produce.

Hydraulic solenoids like to be pulsed at 100 hz, seems like I can build a system using those for as cheap, and it'd be more controllable.
 
Hydraulic solenoid valves are expensive. Maybe I'd be better off with a PWM that has a really low dither rate...
 
So it seems like I either get to buy a cheap PWM that outputs at 100 hz along with an expensive hydraulic solenoid valve that operates at 100 hz, or I get an expensive PWM that outputs at 20 hz and a cheap nitrous solenoid valve that operates at 20 hz.
 
I have a programmable 0-5 volt output off my Cooling Mist black box that I'm not using.

I can find several PWM's that take a 0-5 volt input, but I can't find one that outputs a frequency below 100 hz. If I can find a solenoid that works at 100 hz, then I can get a PWM for $50.

So I either need a PWM that outputs super low frequency based off a 0-5 volt signal, or a solenoid that is good for 1000 PSI and a 100 hz signal. And I'm sitting on a whopping nest egg of around $200. :rockwoot:

Or I can add another voodoo magic electronic module that would turn a high frequency PWM signal into a low frequency PWM signal.

Options, options, options...
 
Begle1 said:
I have a programmable 0-5 volt output off my Cooling Mist black box that I'm not using.

I can find several PWM's that take a 0-5 volt input, but I can't find one that outputs a frequency below 100 hz. If I can find a solenoid that works at 100 hz, then I can get a PWM for $50.

So I either need a PWM that outputs super low frequency based off a 0-5 volt signal, or a solenoid that is good for 1000 PSI and a 100 hz signal. And I'm sitting on a whopping nest egg of around $200. :rockwoot:

Or I can add another voodoo magic electronic module that would turn a high frequency PWM signal into a low frequency PWM signal.

Options, options, options...
Click to expand...

or you can just use the one available for a very reasonable price that will run two separate channels of nitrous control.
5 volts is not enough to operate a nitrous solenoid properly. . !00 htz is detrimental to the seats in the solenoids. Nitrous Express has done extensive research to develop the progressive system that it sells . There is a big pile of parts that didn’t work , and it was not an easy process.
If you try to second guess the process, you wind up with solenoids that either stick open , don’t open or something in between .
So at $ 369 for just the controller how can you go wrong, plus any Comp D member will get a discount in a PM off any NX product or you can just use the one avalable for a very resable prive that
 
I have a programmable, variable 0-5 volt output already, I can use that to control a PWM. If I had a PWM that went down to 25 hz, I'd be golden.

For $369 I can buy three nitrous solenoids, and use a handful of resistors and comparators to turn the 0-5 volt output into a 7 stage system with no modulation at all. If I can't find a PWM that works, that's the direction I'm going.

I'm not saying that the NX system is a bad use of money, but I don't have money, so it's not an option. Unless you accept payment in packets of ramen noodles.
 
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