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Ram Engine

5.9 Cummins Performance Upgrades

Thinking about how you can upgrade your Dodge Ram 5.9L Cummins‘ performance? This guide will walk you through what you can do as well as the typical dos and don’ts that come with upgrading your engine.

5.9L Cummins Fuel Economy

Unfortunately, there is no way for the 5.9L Cummins to get to its full potential in fuel economy without upgrading. This is because it has a low-to-mid-range payload capacity, which means that it does not have the power output to get the payload. But don’t worry; there are ways you can make your truck run better in fuel economy such as using a weight distribution hitch if you haul medium loads.

Some things to avoid are nitrous oxide upgrades for your engine. It does not make sense in the long run, because you will need to upgrade your injectors, fuel pump, and distributor in order to make it function correctly.

You can make the Dodge Ram 5.9L Cummins more efficient by controlling your speed, using EGR valves, an after-cat system to replace the muffler for a straight pipe. With these upgrades, you can expect fuel economy of up to 20% more efficiently.

Cummins Upgrade

Another great thing that you can do is use a lower viscosity oil with special additives that will repel water better than most oils out there. You should be able to get about 7% better fuel economy if you do this upgrade.

For the rest of the Cummins upgrades, you will need to plan on spending a lot of money. You can expect a minimum of $5,000 for a good exhaust system that will help with conserving fuel volume as well as sound. For engine management systems from multiple companies such as Bosch, Motec, and Siemens can cost around $3100 each.

On the other hand, you can find aftermarket parts for your Dodge Ram 5.9L Cummins which can make it up to 15% more efficient as well as increase performance by 10%. It won’t drive like a Dodge Ram 6.7L Cummins, but you’ll enjoy the added power.

Things To Consider

  • Your Dodge Ram fuel system: whether you’re working with gas engines or diesel engines
  • Upgrade to an electric lift pump to get more power, more horsepower, and a boost on diesel performance and boost in torque
  • Make sure your common rail injection timing gear housing is in line
  • Take a good look at your crank gear, fuel screw, fuel plate and line pressure to prevent too much fuel going in, causing an engine block
  • bigger injectors allow more fuel to enter which means extra power
  • Consider the following parts:
  • killer dowel pin
  • cam gear
  • transmission
  • injection pump, full fueling lift pump
  • shift points
  • head studs
  • driving line
  • valve
  • wheel
  • If you have a factory tank installed, you’ll want to look at the supply, drivability, intake, flow, load, and control first
  • Installing mods for your factory fuels can produce an automatic boost in in the valve intake, improving transmission

Dodge Ram 1500


Titan Diesel Sports: We Know Everything About Your Dodge Ram 5.9L Cummins Diesel Engine

Figuring out how to upgrade your 5.9L Cummins can be difficult if you don’t have the right expertise. Luckily, at Titan, we know everything about your Cummins engine and can help you decide which upgrades you should be doing; we also know the characteristics of every suspension and gear in your truck. With Titan, you’ll get more bang for your buck with your 5.9L Cummins!