Post Your Successful Diesel Mods At Dieseldatabase

Have you completed a successful mod on your diesel truck? and did you take pictures and discovered tips that might help others? Your post is welcome here. All you have to do is register on this site. Then contact us via the the contact form on the ABOUT page (see menu), letting us know you […]

Installing Upfitter Switches in 2005 and Newer Ford Super-Dutys

If you want to add a few aftermarket options to your new Ford Super Duty, Ford Motor Company makes things easy for you. One of the options you can select from the factory is the “UPFITTER SWITCH” option. This is a bank of four switches, with fuses and associated relays, that provide two 30 amp […]

Stewart Warner B757 Ultra Shift Light Install Sheet

Click the link below for the pdf version of Stewart Warner B757 Ultra Shift Light Install Sheet Stewart Warner B757 Ultra Shift Light Install Sheet [thanks to Stewart Warner used with permission]

Tips & Tricks for Better Fuel Economy

1. Air up your tires.Keeping your tires aired up to manufacturers specs can help your fuel economy up. 2. Leave your tailgate up!The tailgate up creates a vortex behind the cab which pushes air up over the tailgate. The tailgate down allows the air to push down on the bed creating drag. 3. Be easy […]

Serpentine Belt Replacement

Work performed on a 2002 Time Of Completion : 30 Mins Here’s my belt @ 48,000 miles may want to check yours out Tools Required : 1/2 Inch Drive Ratchet & an 1/2 to 3/8 reducer Parts Required : Here’s the Gatorback belt $33.50 at AutoZone; this part Number is for Models with A/C This […]

Old 12v Cummins Boost Guage Installation

1. A hole must be drilled and tapped into the intake crossover pipe for a boost source. 2. Remove the hose from the intake crossover pipe and push a rag well into the pipe past the point to be drilled and tapped. This will prevent chips from entering the engine. 3. Drill through the back […]

12V Cummins Thermostat Replacement

Symptom/Condition: The vehicle may not warm completely, especially in cold ambient temperatures. This condition may be due to a thermostat that is stuck in the partial open position by debris in the cooling system. NOTE: THE COOLING SYSTEM USED ON THE CUMMINS DIESEL ENGINE EQUIPPED VEHICLES PROVIDES THE CAPACITY AND PROTECTION OF THE HIGHER GVWR […]

Ford 7.3L Diesel Fuel Tank Vent Mod

About one month after I completed the extraction and re-installation of the PSD from my truck, necessitated to replace a rusted out oil pan, I noticed diesel fuel on the floor of my garage under the rear of my truck.  Sure enough the steel rear fuel tank had also rusted through.  Why in the world […]

My Glowplug Relay Bypass System

There have been many threads on the glow plug relay bypass idea discussing how and when to turn off the relay, and even whether or not it is a good idea at all. I have come up with a combination of ideas that I feel is the best scenario. How the glow plugs work depends […]

Stewart Warner B822 Steering Column Pod Install Sheet

Click the link below for the pdf version of Stewart Warner B822 Steering Column Pod Install Sheet Stewart Warner B822 Steering Column Pod Install Sheet [thanks to Stewart Warner used with permission]

BHAF – Big Honking Air Filter

BHAF = Big Honking Air Filter This is a very easy mod and the benefits are great … Cooler Egts … Better flow … More Whistle !!! First remove the air intake line running from your factory Air box to your Turbo Then remove your air box … just pull straight up This area it […]

Twin Electrical Fans

It’s been said that the factory fan consumes horsepower, and I’ve heard conflicting results as to what the power increase would be if you were to eliminate the fan and go electric. Me, I just don’t like the idea of that big thing swinging around on the end of the water pump, putting all that […]

Gear Ratio Spreadsheet

Click the link below for the excel version of Gear Ratio Spreadsheet Gear Ratio Spreadsheet

Heated Tow Mirror Swap

You need to have the bases from an 2nd gen. tow mirror equipped truck. Then purchase a set of Power/heated tow mirrors from a 3rd gen truck, you can get them in a kit (which is both mirrors, you will still need to buy a switch, knob and nut) Once you have all four mirrors, […]

Turbo Horsepower

The horsepower is calculated as a rough estimate using approx. 0.7*CFM=Race HP and 0.55*CFM=Daily HP. Turbo CFM Racing HP Daily HP HX35 600 420 330 HX40 800 560 440 T66 800 560 440 B1 900 630 495 H2E 1000 700 550 HX50 1000 700 550 HX55 1050 735 578 HT3B 1100 770 605 T76 1350 […]

Diesel Thunder 2006

Lem stayed up late the night before and was working into the morning installing the Snow Performance water/methane injection system on his 2002 Cummins. As a result, we were late to the Dyno Drags for this year’s Diesel Thunder hosted by Northwest Bombers (local division of TDR). I and our friend Thom, who was working […]