Cant build more than 11# ?

[Hardass]

09 m8 No boost leeks that we can find Manual boost controll goes from 6 to 11 psi and no more Iv disconected the t and the boost goes off the guage any idea any one? It is a external tial set up the turbo is a 3071 with a billit wheel if that matters.

 

[Bacon]

Sounds like your boost control is funked. If you unhook and it goes full boost.

 

[Hardass]

Ill see if i can try another one

 

[knuts82]

What kind of boost controller? If its a Hallman spring check ball style you need the heavier spring.

 

[Polarisrocks]

http://www.google.com/url?sa=i&rct=...wZV2GTNX8wPypVMft9Bb9vWQ&ust=1396492071973486

His wastegate is plumbed this way. The boost controller works backwards when its plumbed this way. The park we cant figure out is why with a 6 lb spring why cant we turn it more than 10-11?? Is there a limit in how much more boost pressure you can run than the spring ?

 

[Polarisrocks]

http://www.turbomagazine.com/tech/turp_0501_understanding_external_wastegate_basics/

 

[Polarisrocks]

http://www.tialsport.com/documents/MV-Install-Guide.jpg

Here is the install guide for the simple way that will let you turn it up more than the other way.

 

[Hardass]

Ok ill try that set up darn now i have to go riding again

 

[gus bohne]

dude, My triple piped turbo 900 cat has the gate on the collector rather than my prefered center of pipe location.
Just like you, I had an 8 psi spring in it,, just like you I could barley bleed it too 11 psi.. The gate is being forced open by dynamic pressure. once i installed a 12 psi spring it allowed me to bleed to 16 then same thing.. limited by pipe pressure over coming the spring.

If you go to an ebc that allows you to apply pressure to the TOP of the gate this issue will go away.. dont know if your manual will allow you to apply pressure to top. if it does or can be plumbed to do that . It will work just fine that way.

So in a nutshell. instead of bleeding OFF signal to open gate you are appling pressure to the TOP to prevent it from opening until a higher pressure is achieved.. too bad we lost our snow and ice.. I would have tried it for ya!

Gus

 

[hawktoy85]

Hardass. are you testing it by pressurizing the system? or actually riding the sled?

I know mine , when I pressurize the system looks for leaks, Will only hold 6 lbs before blowing off. But when riding it boost to my set 11 lbs. Don't understand exactly why but it does.

 

[Hardass]

No im riding it Im going to replumb it today and see what happens wish i had more time but work is calling. Thanks for all the help

 

[Hardass]

I just went ahead and put a heavier spring in which made my range of adjustment go up. i like the way the turbo spools and how the power comes up so the heavier spring made more sence to me