"Exhaust Brake"?

[Nemo]

Is there a way to set the turbo vains to 100% to create a "turbo brake" to slow the truck down with a load when off the throttle completely? Kind of like a exhaust brake in a way.


Ive got a few crazy ideas so if that doesnt make sence please let me know. :)

[killerbee]

Yes. It has been incorporated into my custom tuning for a couple of years.

Just load the vane position and boost you want to create during off-throttle operation. Be careful about using 100% at the higher rpms.

In my application, you have no idea it is there until those grade braking conditions are met, high rpm, no fueling. transparent.

[Nemo]

At Higher RPM's whats the highest % you would suggest? just so I dont go dangerously high.

[killerbee]

Take it with a grain of salt. I use 95% at 4000 rpm. It is mostly a gut feeling, that 100% vane is troublesome. I do use 100%, but no higher that 3200 rpm, and never for power production

[Nemo]

Okay, I will play around with it and see what I get. Thank you again Michael.

-Justin

[KB3MMX]

Yes. It has been incorporated into my custom tuning for a couple of years.

Just load the vane position and boost you want to create during off-throttle operation. Be careful about using 100% at the higher rpms.

In my application, you have no idea it is there until those grade braking conditions are met, high rpm, no fueling. transparent.

What a COOL idea !!!
So, I could command high vane position and boost at 0% load and RPM's over say 1600, yet retain a open vane position the get a LB7 style idle sound?

[killerbee]

yes. But you won't get any significant braking with it under 2500 rpm.