i have a AAZ TD and i'm running a AHU turbo with a manual boost controller, but the controller does not seem to doing its job anymore , is this possible. my turbo is spiking like crazy when i giver the fuel. over 30 pounds at times. How can i cure this problem. help please. Thanks
Manual boost controllers, particularly if they are the simple "bleed nozzle" type, generally do a poor job at best actually controlling boost, *and* are quite dependent on how they are set up... length/diameter of tubing, method of tapping into the wastegate, etc.
Has your turbo/boost controller always behaved like this or did it suddenly start ? A bit of a description and/or a picture of your setup might generate some ideas, but if you have an el-cheapo boost controller you are probably getting exactly what you paid for !!!
Vince
Bleeders are junk. Ball and spring is the only accurate way to go.
mine was spiking at 30 a few months ago, a line had become disconnected in the engine bay
its a kinetic boost controller, and it got worse and worse , it was graduale. just using stock waste gate for now .
Bleeders are junk. Ball and spring is the only accurate way to go.
What's the difference, and who sells the best controller?
a bleeder "bleeds" the boost sensing pressure to atmosphere instead of letting it actuate the wastegate
a ball+spring setup just blocks the air signal to the wastegate
i use a 15 dollar campbell hausfield "mini air regulator" i got at home depot 3 or 4 years back
it works fine,with minimal boost creep/spiking/crap,and ive got it mounted next to my console soits adjustable fromin the cabin
Chris was using a ball and spring, the sprig has somehow become bunged up in his unit after a few years of hard use.