Um the answer is there in the thread already!!!



Q: How much boost is the TRU BOOST Gauge capable of controlling?
A: The internal pressure sensor is capable of reading up to 29 PSI of boost. If you have a higher boost application, we offer an external pressure sensor that will read up to 60 PSI of boost. Please visit the Sensors and Connectors page on our website for more information.

 

Crushed MR DV wouldn't be any better... That thing is only good for 30-32 psi if that. They can leak at 28-29. I don't think thats the problem.

I do agree adjusting the actuator could help but boost leak test first.

 

Yeah, you're probably right. In my case I have only taken this crushed POS up to 26.5#. I think that I like it so much only because it is so cheap. But, it sounds just awful. Kinda like a goosed turkey.

 

Electronic valve controllers inject a major complexity into the equation. I bet it's the boost controller / sensor setup. After the obvious boost leak test, slap on a manual boost controller, which would take about 10 minutes max, and then see what you get for boost pressure. If it changes, you probably need the 5 bar AEM sensor for your boost controller.

 

GOD ****ING DAMMIT I JUST ****ING SAID THAT!!!!!!!!!!!!!!!!!!!!!!!!

 

Doesn't the boost controller only run 29 psi? Here is the guide from AEM in the instructions.

Pressure Sensor: (SEn - I)
Select the pressure sensor to be used by the Tru Boost. The internal sensor (I)
is used for boost levels up to 29 psig. The optional external sensor (E) is used for boost
levels above 29 psig, up to 50 psig.

Instructions: http://www.aemelectronics.com/Images...%2030-4350.pdf

Upgraded Sensor Part #: 30-4351

We have them in stock, ready to go!

Thanks,


Michael

 

I give up, I must be invisible or a ghost or something.

 

Honestly, I didn't even read the replies. I read the op's question and posted the answer. You are correct though

 

Hey maybe it's the fact that the Tru Boost can on control around 28.5 psi and you need the upgrade for it if you want to run higher boost LOL

JK bro

In my case it was indeed the wastegate actuator I was having a hard time boosting past 29 and after tons of testing I bought a mightvac pump to test and watch pressure going into actuator and noted my actuator would crack at 17psi and no matter what it would blow open at 25psi. The Mightvac will also let you test the BOV
I was going to make a separate thread but too lazy. Considered taking pictures also

My solution was the 25psi actuator although I'm going to experiment with cutting and doubling up springs on the Forge to see if it will work well past 25-26 psi



PS I had tried tightening the spring to the point of not having enough travel.

 

"sniff"....That's all I wanted to hear......"sniff"


Please pm me price on that 6 bar unit.

 

Did someone say something??? I didn't hear anything. Anyhow, to the OP...I bet it's the TRU BOOST...

 

You guys are all wrong. The AEM doesn't need the 75 psi sensor to make more boost... only to read it.

He already said he was logging boost on the dyno when he noticed it didn't go up at all.

Make sure your wastegate spring pressure is setup for your 18 psi actuator and not the stock one.

 

^^^How would you use the AEM to control the boost at pressures higher than your sensor will read?

 

I did not see them on your website, can you please post the link or PM me a price.

 

The sensor is simply a boost gauge, the solenoid does the boost control.

The AEM tru-boost does not use boost pressure feedback to adjust the WGDC to hit target boost. Its all up to the user.

The only thing that would happen if he didn't buy the external sensor and ran more boost is it would stay pegged at 29.5psi until it dropped below that value.