Those that have tuned or programmed
My Smarty programmer has economy, tow and performance settings. My question is, do you all tow exclusively in tow mode or any of the other 2?
Forum Discussion
I will say that another thing that limits stock trucks with VG turbos is drive pressure. A 1:1 drive pressure is ideal, but VGTs at high power levels tend to increase drive pressure way past boost pressure which is the equivalent to a person trying blow up a plastic bottle. It puts a lot of stress on the internals and head gaskets are generally the first thing to give.
This is one of the reason I replaced mine with an old fixed geometry turbo. The main reason why manufacturers are forced to use VGTs is due to low rpm emissions and for better control over the EGR. If it wasn't for this, they would still be using fixed geometry turbos.
This is one of the reason I replaced mine with an old fixed geometry turbo. The main reason why manufacturers are forced to use VGTs is due to low rpm emissions and for better control over the EGR. If it wasn't for this, they would still be using fixed geometry turbos.
