Here is ADLP‘s recommendations for the PureFlow AirDog 100 gph, AirDog 150 gph, AirDog II-4G 100 gph, AirDog II-4G 165 gph, and the AirDog II-4G 200 gph Diesel Lift Pumps.
It would seem that bigger is better, correct? That is not always the case with AirDog Lift Pumps. Here is a short blog on what we at ADLP recommend for your Chevy/GMC Duramax & Detroit Diesel, Ford Powerstroke, and Dodge Cummins Diesel pickup trucks depending on your use and modifications.
The PureFlow AirDog 100 and PureFlow AirDog II-4G 100 Diesel Lift Pumps are recommended for up to 500 rear wheel horsepower. This will cover about 95% of the diesel pickup trucks on the road. These lift pumps are the best suited for stock diesel trucks or diesel trucks running an aftermarket tuner or programmer such as EFI Live, Edge, SCT, BullyDog, H&S, Smarty, and any other performance tuner or programmer. The PureFlow AirDog and AirDog II-4G 100 is perfect if looking for added protection, filtration down to 2 micron, improved fuel economy, longevity and throttle response while towing and daily driving.
The PureFlow AirDog 150 gph and PureFlow AirDog II-4G 165 Diesel Lift Pumps are recommended by ADLP for the higher horsepower rigs running modified fuel systems, larger injectors, and custom tuning such as EFI Live. The AirDog 150 and AirDog II-4G 165 are good for diesel trucks running up to about a 1000 rear wheel horsepower. If you currently have a stock diesel truck but have plans for future upgrades, then this size lift pump would be a excellent choice. This is also the most common pump we install and recommend to our customers. The tests we have done on our Dynojet Chassis Dyno have shown increased horsepower, as in the case of the 2013 GMC Duramax LML we tested, it saw an hp gain of 40hp on a stock tune with a S&B Intake, and 20hp on a performance tune with the same intake. This is seriously impressive. However, as mentioned before, it’s not all about the horsepower. An AirDog Lift Pump with 150gph or 165 gph is still fine for a stock truck, even if your future plans never work out. So unlike what you may have heard online, purchasing this pump will not hurt anything. With the original AirDog “High Flow Return,” all excessive fuel not being used by your truck will be returned to the tank. When running the AirDog II 4G the demand flow only allows the pump to send what fuel is needed to the injection pump, and all other fuel is recirculated internally in the base, returning it to the suction side of the pump.
Lastly The PureFlow AirDog II-4G 200 gph Diesel Lift Pumps are recommended for hot street or competition diesel trucks that exceed 1000 horsepower.
These recommendations are guidelines and come from our staff experiences, installation, and customer feedback. So in closing an AirDog Lift Pump should be one of the top modifications you do to your diesel truck. This is especially true if you have a 2001-2016 Chevy / GMC Duramax Diesel pickup truck since unlike certain models of the Dodge Cummins and Ford Powerstroke, these model trucks do not come fitted with an OEM lift pump from the factory. Adding one will keep your injectors and CP3 / CP4 healthy, while increasing hp and fuel efficiency. But keep in mind that even though I mentioned the Dodge Cummins and Ford Powerstroke come with an in-tank on inline fuel pump, your diesel truck would be better protected with an AirDog Fuel Preporator / Lift Pump with a 2 micron filter and water separator. So if you haven’t done so yet, purchase and install your new PureFlow AirDog Lift Pump!