Our local haul Lightweight Efficiency project.
Wanted to share this data and results we are getting. Late update – We've been running a preproduction secondary system from AirDog for 2 months now, and it's been performing great. Observations: Crisper throttle response and quicker turbo spool. I actually had to make some adjustments on the ice because the power comes on much quicker now. The truck runs very smooth. When empty in auto mode, it holds gears longer than before. Idle quality is excellent – it was already smooth at 1050 rpm, but now it's silk smooth even at 950 rpm running empty. Fuel economy is looking positive. This month has been tough conditions (wind, snow, cold, nothing over 60 miles one way, plus 8–12 corners each direction), yet we still averaged 6.7 IMP gallons per mile. Compared to the traditional units we were running, we're seeing 26% less fuel used and 4 metric tonnes more payload per trip. Reminder: Tare weight is currently 15.250 – 15.500 mt, and we expect it to be even lighter this summer. Note 106,261 lbs payload We are seeing 7.3 IMP mpg with this setup overall. Truck spec: 2021 Volvo VNR 6x2 – D11 425 hp – 12 spd direct I-Shift, 2.50 ratio. Doepker Hopper Super Bee – Dr. Preload – Hot Shot's Secret lubricants in wheel ends and all oils – 2-stage AirDog – WBS Tires in all positions. Installed and sold by Sterling Truck and Trailer in Regina. More on the AirDog MVP Secondary: The fuel path from the tank to the Volvo engine is full of challenges for efficiency. Fuel is pulled by the gear pump from the tank into the water separator side of the secondary housing, through the gear pump, then pushed into the particulate filter side, and finally to the injection system. All those turns, nooks, and crannies create potential nucleation and cavitation points where vapor can form in the fuel. The AirDog (acting as the primary filter with its integrated fuel pump) removes entrained air and delivers fuel under positive pressure to the secondary housing. This greatly reduces the load on the engine’s gear pump and helps prevent vapor-forming cavitation. The new AirDog MVP secondary fuel filter housing (for Volvo and Mack engines) incorporates AirDog’s patented air separation system. It provides an outlet for any remaining air and vapor to be evacuated from the fuel just before it enters the injection system. The goal of the combined AirDog + MVP system is to deliver the cleanest, most air-free fuel possible under optimal conditions to the injection system.