Boost controller install

[SirNik84]

OK this might be a stupid question. but how do i install the boost controller i just got?

this is the controller i got off ebay:
http://cgi.ebay.com/ebaymotors/P-TURBO-BOOST-CONTROLLER-KIT-1-30-PSI-GOLF-GTI-JETTA-A4_W0QQcmdZViewItemQQcategoryZ33742QQihZ019QQitemZ290055956641QQrdZ1

it came with no instructions.

I was thinking it would work by splicing it into the line that goes between the intake housing and the waste gate. but it came with the T shown in the picture.

the T alows air to move from the pink nipple to the nibble the arrow is pointing at. the other nipple on the T doesn't seem to pass any air, at least not with me blowing on it.

I found this link on a google search
http://www.jimwolftechnology.com/wolfpdf/JWTMANUALBOOSTCONTROLLERINSTRUCTIONS.PDF

is that the way it is supose to be setup?

if so how does it work.

I thought it worked by blocking the boost pressure to the waste gate actuator until it reached a set PSI then opend and opend the waste gate.

I don't understnd what the T is for.

some one pelase set me straight.

[bgkast]

I believe you boost controller is basically just a needle valve that is a controlled leak. If so it should be plumbed according to that diagram you found. The controller works by leaking off a bit of boost effectively sending the waste gate a lower pressure than the turbo is creating.

The instructions for my ball and spring boost controller say to plug the line where it exits the compressor, to hook the outlet to the line to the waste gate. The inlet to the boost controller it says to hook to a new line that runs to the intake manifold. I don't see why this is any different than splicing it into the waste gate hose.

The ball and spring type is closed until the boost reaches a set amount, then it opens and sends the signal to the waste gate.

To double check what kind you have unscrew the knob and see what is inside.

[SirNik84]

well the knob won't unscrew... and i think its very cheaply made so i don't want to stress it.

i was looking at the Diagram agian and maybe the nipple on the T that i can't blow through it the side that is the Flow Restrector in the diagram.

[JEREMYC]

This is the one I bought. http://cgi.ebay.com/ebaymotors/Voodoo-III-MBC-Manual-Turbo-Boost-Controller-0-30-PSI_W0QQcmdZViewItemQQcategoryZ33742QQihZ018QQitemZ280049285992QQrdZ1QQsspagenameZWDVW

It came with instructions,works very well and is very simple in design. I plumbed it in line of the waste gate hose. Took about 5 test runs to get it to the right setting I wanted which was about 14psi max. However, do not even try to install one with out a good boost gauge. Also, make sure you orient the flow of the valve correctly or it will not work. Sure made a big difference in fuel economy, smoke and power. Before I installed the controller, I was getting about 6 psi max, way below factory specs. Good luck!

[Ara T.]

How do you orient a boost controller? I have tried flipping it around and it still does not limit boost. If I'm going 80 and give it some throttle it'll just peg the boost gauge so I am driving it extremely carefully right now

[bgkast]

Do you have a ball and spring type or the leak type? Have you tried adjusting the knob?

[diametricalbenz]

So how is a boost controller with a spring valve different than a blow off valve (bov)?

[Matt SD300]

Originally Posted by diametricalbenz

So how is a boost controller with a spring valve different than a blow off valve (bov)?

The boost controller regulates how much boost the the turbo can produce. A blow off valve, releases the extra pressure from the turbo when letting OFF the the throttle(gasser's & to some degree diesels).

The whole point of a boost controller/wastegate is to alter the amount of gasses flowing through the exhaust turbine. Hence the name wastegate.

Using a BOV to limit boost pressure would take load off the turbo and allow it to overspeed.

[Matt SD300]

Originally Posted by ForcedInduction

The whole point of a boost controller/wastegate is to alter the amount of gasses flowing through the exhaust turbine. Hence the name wastegate.

Using a BOV to limit boost pressure would take load off the turbo and allow it to overspeed.

From the pic. on your avatar..It seems your BOV failed.. and you have completely blown your compressor housing off!!
How much boost doe's it take to do that?

[Ara T.]

Originally Posted by bgkast

Do you have a ball and spring type or the leak type? Have you tried adjusting the knob?

Of course I have It's a ball and spring as far as i know, I stuck both ends into the wastegate hose. Tightening the valve as much as it can and it does not affect boost levels at all.

[bgkast]

Well that is your problem then. You should start with the valve all of the way out and tighten until you reach the desired boost. The hose to the compressor should enter the ball side of the boost controller.

[Ara T.]

All the way out, all the way in, doesn't make a difference. I'm going to take a look at my setup tomorrow, I figure it's something I did, perhaps the valve is bad though.

[bgkast]

Take it off and see if you can blow through it. You should be able to when the knob is loosened. Note: you will only be able to blow through it in one direction.

[diametricalbenz]

Originally Posted by ForcedInduction

The whole point of a boost controller/wastegate is to alter the amount of gasses flowing through the exhaust turbine. Hence the name wastegate.

Using a BOV to limit boost pressure would take load off the turbo and allow it to overspeed.

The boost controller/wastegate controls the pressure reaching the exhaust impeller side of the turbo?