We ordered a ProParts Quad Pod to help us monitor the turbo boost pressure, EGT, transmission temperature, and rear differential temperature. The staff at All About Diesels packs the A-pillar with Auto Meter gauges that are clocked so you know you're in trouble if the temperature needles point to the right of the 12 o'clock position.
So you've added a bigger turbo, had your transmission built up, and re-geared your axles, but you didn't spend any "extra" money on gauges. You are just asking for trouble, buddy. Every diesel power enthusiast needs to know what is going on under the hood, and without a set of high-quality gauges, you are flying blind.
What You Need To Watch
Heat is the enemy of your drivetrain. When parts break, you can often trace the problem back to something that failed because it got too hot, then cracked, or bent, or split, or had a hole burn through it or melted into goo. By keeping parts within normal operating temperatures, you will protect yourself from getting stuck while trailering or on the trails, plus you'll get the maximum performance from your drivetrain setup every time you drop the hammer. For just that reason, we called All About Diesels and ordered a new ProParts Quad Pod filled with Auto Meter gauges for our '02 Super Duty trail-crawling rig. Here are the gauges we chose to have installed in the A-pillar and why it's vital to have this information available at all times.
Exhaust Gas Temperature (EGT) Pyrometer
This is arguably the most important gauge to read while driving your turbodiesel. It can raise the first warning flag when your engine is running too hot. The EGT probe should be mounted in the exhaust manifold before the turbo. That way, you will know the temperature of the exhaust gasses leaving the engine and those entering the turbo housing. The pyrometer can clue you in on how hot the combustion chambers are getting and whether the turbo is in danger of grenading. Once you have an EGT gauge, use it. Keep your temperature readings below 1,250 degrees Fahrenheit whenever possible. Ease back if you are towing or hauling and the EGT keeps rising. Pull over if you have to. Remember, a cool-running diesel will last longer and low EGT means less fuel consumption, saving you money at the pump.