The high flowing aftermarket VP44 pumps are now almost capable of supporting 800-plus horsepower on straight No. 2 (No. 2 is in reference to using only pump fuel) and more than 1,000 horsepower with nitrous.
Why do VP44 pumps fail?
The most common cause of VP44 failure is to lack of fuel. Dodge trucks 98.5 and up are notorious for having weak lift pumps. Unlike most injection pumps the VP44 is fuel cooled and lubricated. Therefore, if its fuel supply comes from a weak lift pump, it is very easy for the VP44 to overheat and cause damage to itself.
How much horsepower does a 66mm turbo add?
The DDP 66mm is built from a brand new turbocharger. It’s rated for approximately 700hp+. You will enjoy it’s fast spool up and improved torque at low rpm while gaining horsepower throughout the entire rpm range.
What goes bad on a VP44?
Can you upgrade the transmission on a Cummins?
Don’t forget to pay extra for good transmission tuning. No matter which generation Cummins you own, we’ll highlight the single best upgrade you can make to it below. The original 5.9L 12-valve offered in Dodge trucks was the epitome of a low-speed diesel.
What are the best 4th generation Cummins performance upgrades?
Our last item we recommend as one of our best 4th generation 6.7L Cummins performance upgrades is a lift pump. Lift pumps are a great performance add-on for all diesel trucks. Not only will they make sure you’re getting sufficient fuel, but they offer superior filtration compared to your fuel filter.
What is a Cummins techtuner?
Tuners modify your 6.7L Cummins factory engine calibration. Injection timing, fueling, and many other parameters are changed to give your diesel greater performance. While the extra ponies and torque are nice, when it comes to your 6.7L Cummins, what you want is transmission tuning.
Is it possible to add horsepower to a Cummins for free?
Unfortunately, that’s a fairly common occurrence in the diesel performance realm—especially within the Cummins segment, where considerable horsepower can be had on the cheap (and sometimes even for free). But in the rush to add “easy” horsepower, items that aid reliability or better facilitate the use of all that extra twist are often overlooked.
