Sorry Tate - have been busy with work.

I would try a Mac 45A-AA1-RA11 - http://www.macvalves.com/products/Fo...mall/45/45.htm


http://www.macvalves.com/products/Fo...mall/45/45.pdf

These typically have 1/8" npt ports and Im not sure how it will hold up with the temps your dealing with. I may be able to get my hands on one.

 

Thanks Shane, but those are still solenoid operated. I was after pilot operated, so purely on pressure. I've decided to go a different, much simpler route. Just need to actually do it now.

 

I have not read all the posts but when I was on the Top Fuel team, our fuel and clutch management system was built by a guy named Bob Auto.

I think the air valves he uses are close to what you may need. I searched for his website but it still shows under construction but call him up. Very nice guy but a GENIUS and may get way detailed on you but cool to talk to.

Automan Technologies
362 Sacramento Street
Auburn, CA 95603
Phone/Fax: 530-885-8815

 

No its pilot operated pressure only with a spring return.

A few of those are electrically operated but not the p/n I gave you.

 

Tate, just thought of this, you could install a wastegate onto the cold air pressurized tube. The tube going from turbo to IC, you could just use pressure across the IC to open the gate. I don't know how big of gate I would run, but it should work. You can dial in one of those gate pretty easy. I would use one those 4psi spring inside, air horn pressure into bottom and turbocharger air pressure on top. A little trial and error I bet it would remove the turbo barking. It would only take 1/2hr to 1 hr build a pipe.