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Category Archives: Diesel Engine Upgrades

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P7100 Fuel Pump Modifications for the 8 Valve 4BT

P7100 Fuel Pump Modifications for the 8 Valve 4BT
4BT Engine History and Background 4BT (3.9 L) 140 HP Engine The Cummins 4BT has mostly been utilized in applications such as box trucks, small industrial vehicles and agricultural equipment. The 4BT is pretty much just a downsized version of the famous 5.9L 12V Cummins as these engines share almost all of their parts such…
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Best Axles for an Off-Roading Jeep Equipped with a 4BT

Best Axles for an Off-Roading Jeep Equipped with a 4BT
Let’s talk about axles... If you’re into off-roading in a Jeep you might be pretty much up-to-speed when it comes to axles and which are the best to use - or are you? For the uninformed, all wheeled vehicles have axles and they’re used for steering, driving, and braking, so they’re pretty important. The axles…
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The Best Turbocharger for the 4BT and 6BT Engine

The Best Turbocharger for the 4BT and 6BT Engine
When looking at more horsepower and torque for a Cummins 4BT or 6BT Performance mod you are definitely going to want to focus on a larger turbo or setting up a twin turbo situation. For the laymen out there, a turbocharger compresses the air flowing into the diesel engine, squeezing more air into the cylinder,…
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