Does anyone know a Fast opening analog or digital air valve that can handle boost and live under hood?

I hope to make a homemade electric boost controller. I have all the parts, but the air valve.

Nick

 

an idle air control valve.. i had an idea like that once

 

anyone else?

 

my buddy made one of those for his senior project (BSEE), I'll find out what he used...

 

bump

 

Are you making a boost controller that works in series with the wastegate signal, or are you trying to make an electronic wastegate?

The latter would be pretty cool.

 

i'm working on a electronic boot controller, but your correct a electronic wastegate would be nice.

Anyone?

 

Go to the junkyard. There are about a million of them there.
I like the bosch ones

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rioninja &raquo;</TD></TR><TR><TD CLASS="quote">Go to the junkyard. There are about a million of them there.
I like the bosch ones </TD></TR></TABLE>

are you talking about valves or solenoids? Are they digital or analog?

Nick

 

check out http://www.grainger.com they have all kinds of valves and stuff...

 

Why not just use a solenoid to bleed boost like all of the aftermarket boost controllers? What's up with the air valve?

 

a valve has different positions. thus better control. a solenoids is open or closed. kinda like binary(0 or 1) and analog signals(1-5).

Nick

 

A good analog valve is going to cost a pretty penny. I use some at the place I work. A company named “MKS” makes them. They are used as a vacuum bleed valve on our lyophilizers (freeze dryers). I think the last time I bought one it was between $500 to $1000. It used a special driver unit to actuate it.

Cool little unit but way overkill for a boost control system. I think a solenoid would be perfect for it. Remember you can make a discrete (on/off) solenoid act as if it were analog. You just need to send it a pulsed output.

The solenoid acts as a pilot valve if you will; you use it to control a bigger valve (ie. Wastegate) using a different power source (air pressure).

The other problem with analog valves is speed, they just don’t actuate that fast don’t get me wrong they are pretty quick, just not instantaneous. Some times boost builds so fast I think an analog valve would let it spike before it could control it. For response time, I would prefer a solenoid valve.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TrueNorthStar &raquo;</TD></TR><TR><TD CLASS="quote">For response time, I would prefer a solenoid valve.
</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbosi03 &raquo;</TD></TR><TR><TD CLASS="quote">check out http://www.grainger.com they have all kinds of valves and stuff... </TD></TR></TABLE>

This is where I got mine. Works good.