Well, I was pretty sure that my small exhaust leak was causing the boost loss at high rpms but I was wrong!

The problem was the LBE!

97944Turbo was nice enough to send me a Hallman boost controller to try out to see if it changed things. It definitely changed things. With the LBE, boost was falling to 5 psi in most gears. With the Hallman the drop was to only 11 or 12 psi in most gears (just where it should be by most opinions).

I still can't believe that it was the LBE causing problems. I have checked the thing out completely and it still looks brand new. I have no idea what caused it to stop working properly.

The Hallman is here to stay (at least until I finally decide to go to a EBC, ha ha).

Yay!

 

I'm glad you got it figured out. It is SO frustrating when you know there is a problem and can't find it, especially when everything you check appears to be right.

Russell

 

Congratulations!

 

 

Everyone, thanks for all your help in getting this sorted out!

 

There are times, like when the Safety mode kicks in or what ever it is that kills the boost, that in my mind the best tool in the box is steel pry bar with a full swing.

GD it **** me off sometime's

<Rant over>