Tony Hanna
01-10-2006, 04:16 AM
Anybody ever messed with one? I've seen them going on Ebay and was thinking about picking one up to do some experimenting.
What I'd like to do is setup a switchable boost control with a low setting of 14 psi or less and a high setting of 30.The problem I've run into so far is that if you get a can with a heavy enough spring to hold that much boost (holset hx35 can for example), then your minimum boost with the can hooked straight to a boost/vac source is 18+ psi. This was giving me trouble in the Daytona because the alcohol injection would kick on at 15-16 psi and I wanted a low setting for normal driving that didn't kick it on.
The way I see it is with a dual port I can use a solenoid to route boost to the "push" side of the can to help the spring hold the w/g closed when runing high boost.
It would work something like this:
on low boost, boost is controlled in the normal way by a bleed or g-valve on the "pull" side of the can. The "push" side of the can is open to atmosphere.
On high boost, a solenoid would vent the "pull" side of the can to atmosphere while another solenoid routes boost to the "push" side of the can. How much boost the "push" side of the can sees could be adjusted by either a bleed or a g-valve (set up like you would on a map sensor). This should allow fairly accurate control of the high setting.
I'm probably going to try this when the Sundance is back together and I'll be able to post results and a diagram of how it plumbs/wires if it works.
I figured I'd post here first to see if anybody has tried a setup like this and
how/if it worked out.
Any Thoughts?
What I'd like to do is setup a switchable boost control with a low setting of 14 psi or less and a high setting of 30.The problem I've run into so far is that if you get a can with a heavy enough spring to hold that much boost (holset hx35 can for example), then your minimum boost with the can hooked straight to a boost/vac source is 18+ psi. This was giving me trouble in the Daytona because the alcohol injection would kick on at 15-16 psi and I wanted a low setting for normal driving that didn't kick it on.
The way I see it is with a dual port I can use a solenoid to route boost to the "push" side of the can to help the spring hold the w/g closed when runing high boost.
It would work something like this:
on low boost, boost is controlled in the normal way by a bleed or g-valve on the "pull" side of the can. The "push" side of the can is open to atmosphere.
On high boost, a solenoid would vent the "pull" side of the can to atmosphere while another solenoid routes boost to the "push" side of the can. How much boost the "push" side of the can sees could be adjusted by either a bleed or a g-valve (set up like you would on a map sensor). This should allow fairly accurate control of the high setting.
I'm probably going to try this when the Sundance is back together and I'll be able to post results and a diagram of how it plumbs/wires if it works.
I figured I'd post here first to see if anybody has tried a setup like this and
how/if it worked out.
Any Thoughts?