EFILive Vane position

[Muff]

When running a stock turbo with a batwheel (LLY) what vane position works the best when under wide open throttle runs.

0-5? 10-15? 20-30?

Now that i got these boost leaks figured out i wanna see how hard i can push this stock charger, and at what psi and vane position the truck runs the best.

 

[ikeG]

I always ran 40 or a little less on my old LLY, above 3000rpm, but I think that was close to stock and ran fine, so I left it alone. Unfortunately, once I had it running decent, I didn't mess with it much, just the tow tune was tweaked occasionally. With your inj and pump, I'd open em up even further than that.

 

[Muff]

I always ran 40 or a little less on my old LLY, above 3000rpm, but I think that was close to stock and ran fine, so I left it alone. Unfortunately, once I had it running decent, I didn't mess with it much, just the tow tune was tweaked occasionally. With your inj and pump, I'd open em up even further than that.

I've been running 15% never makes more than 32 on the street. I'm gonna close them up to 25% this weekend and see how she runs.

Didn't realize people stayed that close to stock on the vane table. Thanks for the info.

 

[ikeG]

Didn't realize people stayed that close to stock on the vane table. Thanks for the info.

I'm not saying they do, just that I did. Was good for 600rwhp with a batty and small nozzles with stock pump.

 

[Harbin_22]

Drive pressure gauge would be you friend when playing with vane position.

 

[Muff]

I happen to have 0-100psi friend I call izzy. Drive pressure is pretty much 1:2with 15%vane at 32 lbs of boost.

 

[PureHybrid]

Open them all the way up top :thumb:

 

[Muff]

Open them all the way up top :thumb:

I've ran them like that a lot actually. Max boost is only 30psi though

 

[PureHybrid]

I'm sure there is a fine line somewhere that closing them down and raising boost will lose power from increased drive pressure. I would write two exact tunes but zero vane pos on one and put it up on a dyno

 

[Muff]

I'm sure there is a fine line somewhere that closing them down and raising boost will lose power from increased drive pressure. I would write two exact tunes but zero vane pos on one and put it up on a dyno

Yea that is an option, i'm just trying to get some input from tuners that know what works. So i can have a rough guess as to what will work the best and i can fine tune from there.

 

[CaptPhil]

Mine was set at close to 30. Boost would peak at 36-37psi. Made some high egts though, and hate to think what drive pressures were like.

 

[Muff]

Mine was set at close to 30. Boost would peak at 36-37psi. Made some high egts though, and hate to think what drive pressures were like.

Cool. Ive never ran higher than 15. So im gonna try out 25 this weekend and see how the big girl likes it.