this should work for a MBC, right?

[Plaser]

looks like it would be much more accurate..?

 

[spoonman]

Does the valve bleed air from a third opening or does it just limit air flow between the two openings.

 

[Plaser]

umm, the position its in right now is fully open.. it would just limit the amount of air that gets through as you close it.. no worky?

 

[tlikethedrink]

interesting....

 

[JusMX141]

It would never be able to fully open once a desired boost setting is achieved.

The point with the ball/spring type is that the spring adds a certain tension to the ball until enough boost pressure is built to move the ball out of the way, opening the exit port (the the wastegate actuator). Here you're just restricting the exit pressure full-time. I'd expect some horrible boost creep from this type of regulator.



You COULD do it with an air pressure regulator for an HVLP spray gun....they even have a gauge on them, and cost around $30 for a good one. Just pressurize the air going to it, crank the knob in until you achieve a desired pressure on the gauge, then hook the vacuum line up and boost away.

 

[tlikethedrink]

You COULD do it with an air pressure regulator for an HVLP spray gun....they even have a gauge on them, and cost around $30 for a good one. Just pressurize the air going to it, crank the knob in until you achieve a desired pressure on the gauge, then hook the vacuum line up and boost away.

what would be the CONS of this? how come nobody does this?

 

[JusMX141]

Maybe everyone's just not as smart as I am.....

There are no cons. This is what the regulator looks like:
http://wolfstone.halloweenhost.com/Pneumatics/pnuint_HF_36797.gif

The ones for HVLP spray guns work from 0-40psi....the one shown isn't from an HVLP gun, therefore the pressure adjust range is much larger and more sensitive to lower pressure (can't fine-tune to a single psi.)

 

[tlikethedrink]

haha smarty pants.

hmm but this seems too good to be true. so if i got one that read say 40psi. n i used it to kinda rough estimate a setting, the adjusted according to what it reads on a boost gauge in the car... it could use it pretty safely? at least thats what it sounds like to me.

 

[JusMX141]

Right. You can turn the knob on the adjuster while it's on the bench to set your desired boost pressure by simply supplying air using a blowgun with a rubber tip. Turn the air pressure down until the gauge reads 20psi or whatever you desire, then install it on the car. The boost level on your gauge should match the dialed setting on the pressure regulator.

 

[JusMX141]

Funny, but there are eBay vendors selling exactly what I'm talking about for $55:

eBay Motors: Manual Turbo Boost Controller w/Gauge S13 S14 MR2 DSM (item 310019629988 end time Feb-04-08 11:05:17 PST)

We sell a Sharpe HVLP Spray Gun Regulator (USA made, super-high quality) at my workplace for $28.95....all you need is two nipple fittings to connect your vacuum lines to. Funny how eBay is cheap on some parts, but COMPLETELY out of line on others.

 

[tlikethedrink]

sounds like its worth looking into.
where can i find one? parts store? hardware?

 

[JusMX141]

We're an independent auto parts store that sells automotive refinish products as well. We don't sell any chinese junk parts like Autozone and PepBoys, hence the genuine Sharpe Spray Gun Regulators.

I would think any specialty parts store or even a tool store (Sears?) may have such a device.

 

[tlikethedrink]

ive looked and looked. only seem to find 160 psi ones... you got the part number so i can see if i can order thru a store or website?