I've been considering adding an accumulator to my set-up to help lower the cycling of the pump.
My question is, if you have one and the pump pressurizes it, can you really have a progressive set-up?
I believe most progressive setups just increase voltage to the pump. ie..60psi of water at turn=on point (lower voltage) and 150psi at max spray (12V).
So, if the accumulator is pressuized to 150psi, could it react fast enough to correctly increase water pressure.
Am I correct on this?

 

wheres Richard when you need him most

 

Hello Guys, I was in the midst of the dreaded Christmas shopping routine. I am glad to report, for this year, its all done.

Adding an accumulator to a pump speed progressive system is not possible. The accumulator will absorb any pressure changes - the very natural of the accumulator's job. If you are varying between 60psi to 150psi, your theoretical flow variation is only the square root of 2.5 (150/60), or only getting x1.58 overall increase in flow.

If you add an accumulator, the change in flow is almost non existant, based on the above example. I think if you want something that will give your true progressive to your engine's W/M requirement, you might consider investing on PWM solenoid set up, similar to a the principle of Fuel Injection. If you are interested, I can post some information here how to intergrate such a system into your current set up.

Richard

 

Richard,
Yes please do.
I like the idea behind Coolingmist's new programable progressive controller.
I think the more precise we can controll the flow the better the tune.
Right now I'm doing 90% of my tune on the ECU/fuel side.
I really like the Aquamist approach by using the fuel injector's dutycycle.