manipulating the TURBO with dimmer switch?

[jordan07]

so i seen a video on youtube where u can manipulate the turbo with a dimmer switch or what ever for more or less whistle then i read somewere u can also use it too close that vgts ?? to help for a exhaust brake can someone explain more to me thanks!!

[WarChild]

Why would you do that? If you tow that much you need an exhuast brake just get an sct programmer with it programed in. Otherwise do you know what percent of VG you need at every rpm? If not then you should probably leave it alone.

[Fantom]

Why not INSTALL AN EXHAUST BRAKE?

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[WarChild]

No need to if you have an sct programmer.

[DoubleDpsd]

Lol

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[WarChild]

Closing the vgt is not exhuast breaking by the way.

[jerg_064]

Sounds like instead of using a smoke switch, they just installed a potentiometer to manipulate the viens. Interesting to know how it was set-up though. If as plain as I just stated, you could only manipulate the signal already being sent by the PCM....If the VGT solenoid takes a voltage input you could use a switch in conjunction with the pot to switch back & forth between PCM control and pot control.........

Why you would want to do this I'm not really sure.

[Galaxie]

Interesting!!!!!!

[pizza pig]

Originally Posted by jordan07

so i seen a video on youtube where u can manipulate the turbo with a dimmer switch or what ever for more or less whistle then i read somewere u can also use it too close that vgts ?? to help for a exhaust brake can someone explain more to me thanks!!

Not entirely following, but ill take a guess at what youre saying.

fleece uses a standalone controller for the vgt, not a "dimmer switch" which can open and close the vanes. Closing them while decelerating creates backpressue, which is exactly what an exhaust brake does.

Only problem is, the duramax uses vane position to set boost, using a vane position sensor. The 6.0 is ENTIRELY different and is pretty much impossible to control the vanes with a controller without doing to serious handy work, the tuning uses backpressure to set vane position.

[doubledrop]

maybe he saw the guys that put the 6.0 VGT turbo on a 7.3? if whistle is all you want just put a 03 turbo on there. and for an exhaust brake just use a tuner as stated before