Turbo vanes.....

[496 BB]

Ok so Im sure this is a dumb question to 99% of you guys but as many know Im a noob to diesels. Just had a thought the other day though....

What would happen if you kept the VGT vanes open all the time (0%)(to sound like the LB7) or close to open at all rpms? Would you still make boost or no? I was just thinking what the difference was between a vgt and a non vgt turbo is and how boost is achieved.

 

[Digmax]

Wouldn't build boost till rpms where up a ways I beleive

 

[2004LB7]

You are better of keeping them at something like 50 or 60% if you want it to be close to an LB7. You would have to play with that number to see what is acceptable turbo lag with reasonable drive pressures

 

[TheBac]

Moved into Turbo Talk. Im glad I have an LB7. :hehe:

 

[496 BB]

Anyone ever done this? Or am I just thinking too much...lol.

 

[clrussell]

Anyone ever done this? Or am I just thinking too much...lol.

Are you asking what will happen if say the whole vane position table is set on say 0? It won't run worth a poo.. it'll spool eventually but it will be super laggy and suck..

Unplug your vane solenoid and go for a drive. You'll see

 

[PureHybrid]

You can set the target vane table to zero, will still drive decent because the vanes will start to close up to reach the target boost table.

 

[496 BB]

You can set the target vane table to zero, will still drive decent because the vanes will start to close up to reach the target boost table.

Where u at in Central Ohio? Im in Reynoldsburg.

In all honestly I was just wondering what would happen if it was doable. I dont have the writing software for an LML anyways and Im not bugging my tuner about it so.... Maybe when I switch tuners I will ask Kory.

Just seems the LBZ's have less hiss to them when on the throttle. Kinda like it better that way tbh. Hiss drives me nuts. If I want it to sound like an airplane Ill go to the airport.

 

[IOWA LLY]

If you don't like the hiss sound switch to a fixed vane turbo. Your never going to get the sound you want out of a VGT without making the truck a total turd.

 

[Burn Down]

If you don't like the hiss sound switch to a fixed vane turbo. Your never going to get the sound you want out of a VGT without making the truck a total turd.

I disagree A extra turbo on top of that VVT will eliminate all of the hiss.

 

[PureHybrid]

Where u at in Central Ohio? Im in Reynoldsburg.

In all honestly I was just wondering what would happen if it was doable. I dont have the writing software for an LML anyways and Im not bugging my tuner about it so.... Maybe when I switch tuners I will ask Kory.

Just seems the LBZ's have less hiss to them when on the throttle. Kinda like it better that way tbh. Hiss drives me nuts. If I want it to sound like an airplane Ill go to the airport.

Frazeysburg. Close to Zanesville on our side of town.

I didn't pay attention that you had an LML. If it was an older model, things might cooperate better in EFI.