wastegate control

[littlejeepr]

Is the Banks wastegate actuator actually worth buiyng for the lb7 or is there something better or will the stock one be good enough till I do extreme upgrades. I'm already starting to feel the itch:doh: It will only be worse once i get a tune in my truck:noidea:

 

[durallymax]

ppe boost vlave $30 well spent. safe and easy.

 

[tracker954x4]

^^^^^^^ Like Vinny said. PPE boost valve, well worth the money.:beer:

 

[Vrabel]

Had one, it's the way to go.

 

[littlejeepr]

Awsome thanks I will order one it is better to spend 30 bucks instaed of 200 something on the banks

 

[HoytBows]

I just ordered a PPE Boost Valve, but can somebody give me a run down for dummies on how the boost valve helps, why it helps, how much it helps, why you dont want too much boost, what boost spikes are etc??

 

[Vrabel]

Your waste gate works on vacume, this goes in line and has a pin hole in it and bleeds a small amount of pressure. you get an avg of 5Lbs more boost. Too much boost over pressurizes to motor and you will blow a head gasket at very least.

 

[durallymax]

The PPE Valve reduces the pressure to the wastegate to trick it into thinking the turbo is making less boost thus allowing more boost to build before the wastegate opens.

When your turbo starts making too much boost it is overspeeding. Keep in mind this is just in this situation. The wastegate reroutes exhaust gases around the turbo to prevent overspeeding and surging. When a turbo is constantly oversped it wears out the thrust bearing which leads to excessive axial shaft play, broken shafts, ruined wheels and ruined housings.

Bottom line dont overspeed your turbo or very bad things can happen.

35psi of boost wont blow your headgasket on a LB7. They are stout. The 6 bolt design holds up well. and the gaskets themselves are good.

 

[Vrabel]

but 40psi will, got the proof out in my driveway.

 

[HoytBows]

I just put in the PPE boost valve, and yes the arrow is the pointing the right way, but I got NO increase in boost pressure. I run the Edge Juice with Attitude and drove it around on Level 5 before the boost valve and watched my boost levels which maxed at about 22psi. After the boost valve it stayed the exact same and MAY have flashed 23psi for a millasecond. Whats up with this?? Im pissed.

This may be in my head but it did seem that it might give me more psi quicker and a little more torque just as my turbo wound up but I cant say...

 

[HoytBows]

check that i bumped up into the low 30's the other night, and dont know why that changed all of a sudden. But I am down in michigan near sea level and when i first installed it I was in the Mile high city of denver.... i didnt think that should effect it but either way my boost went from low 20's to low 30's so I'm happy now.

 

[Vrabel]

Good to hear!