Diesel Insights: Towing in the race tune
This is a great video the guys over at Duramax tuner (aka Calibrated Power Solutions) talking about towing with the high 500 RWHP tunes on modern diesels trucks. Personally, I don't like to tow anyth...
Forum Discussion
philh wrote:
OEM's spend miliions upon millions of dollars calibrating the powertrain to achieve customer satisfaction, EPA requirements, and component longevity under a large variety of conditions.
That is the whole point of custom tuning. The OE's mapping is generic made for a variety of situations and scenarios many of which you may not even use your truck in. You may only tow 12k in 70F weather, but you have the same mapping of someone who tows 23k in 100F. With custom tuning, you can map the fuel and shift strategy specifically to how you use your truck. You can also shift to higher power levels as needed .
I can go for a 390 RWHP all the way to 500+RWHP by turning a my 4 selection CSP switch that is right below my steering wheel. Although my 500 RWHP at 2,800 rpm tune makes the same 330 RWHP that the stick tune does at 2,800 rpm, but just at a much lower rpm around 1,700 rpm. This means I don't have to down shift and can stay in a higher gear at a lower rpm more often which conserves fuel.
philh wrote:
tuners either stock or custom tunes, use either a set of assumed conditions or in the case of custom tuners, the atmospheric and fuel conditions for that day.
That is false. Fuel mapping doesn't work that way.
