Did i buy the wrong Boost controller???
 

Did i??? It going into a OM617 (non California),

If its the right one then How do i install??? Do i just put it between the Boost port and Wastegate???

IIRC the inline fitting connects to the compressor outlet, the T fitting connects to the wastegate actuator.

Sixto
87 300D

It looks like the kind with a calibrated leak to adjust the pressure reaching the wastegate. You should be able to plug one side and blow in the other and have some air come out the hole on the side. If this is the case, you can install it in either direction on the line going to the wastegate. Start by closing the valve all the way then make a run to determine your boost level. If it's not high enough, crack the valve open a little then do another run and note any difference.

Just keep adjusting and testing until it's right.

I don't know, Evan. Calibration should start with the adjustment knob all the way out for minimum spring pressure and maximum signal to the actuator. Adjust it tighter to turn up the boost. Maybe that's what you meant and I read it wrong.

And you can't install it in either direction because pressure has to push the ball against the spring. It won't do that if pressure is coming from the behind the spring.

http://www.geocities.com/chmwatson/F...stcomplete.jpg

Sixto
87 300D

Here is a tip. Connect your mitivac to the inlet port, flip it to pressure instead of vacuum, and pump it up. I used mine to preset the controller to 13psi. It saved a lot of tweaking time on the car.

OK, I'm just not completely understanding how this is put together...:confused:

There are two kinds of boost controllers, perhaps you are thinking of the other one?

In ball and spring kind, the ball keeps the boost pressure out of the wastegate based upon spring pressure.

The bleed kind is different, and I think with those it does not matter which end you mount each side of the hose on.- although, I don't know much about those!

I also have a controller coming soon, I'd like to know if you see any difference in spool up time...I'm excited!

no need to waste money on one of these, if you want a controller and already have a gauge hooked up, all you need is a larger diameter 2 inch section of rubber hose and one hose clamp. slit the larger hose lengthwise and put it around the wastegate hose with the hose clamp directly in the middle. test drive, watch your gauge and tighten the clamp as necessary to increase pressure.

I only bought it for 9.99, because i got a $10 off form paypal :D

The only reason I got one is because I hear that the ball and spring method eliminates wastegate creep. It might only make a 1/2 second difference in how quickly the boost builds, but it was cheap :o
I would think that maybe it will help with part throttle boost, at least during times where max boost is going to be achieved eventually.
I think sixto knows the results first hand..(please tell us!)

You want ForcedInduction to explain boost phenomena, not me.

Evan, the ball and spring go into the T-fitting followed by the set screw. The set screw preloads the spring. The ball plus spring pressure blocks air coming from the left fitting from getting to the bottom fitting. As the boost signal increases, it eventually overcomes the spring and pushes the back back allowing pressurized air to the bottom fitting which leads to the wastegate. There should be a bleed hole (visible in the picture in the initial post) to relieve pressure in the actuator when the ball closes. Otherwise the wastegate might get stuck partially open or take a long time to close. Yes, there is a bit of boost bleed through the relief hole but only when the boost signal is going through.

Sixto
87 300D

The "bottom" goes from your intake (or other boost source post turbo) and the "top" (with the nut and stuff) goes to the Waste Gate.

Turning it in increases boost, turning it out all the way lets the WG open at it's preset psi and is very slow to build boost.