V-10 engines reached their peak during the 1990s.
Despite their impressive performance, they are not exactly winners when it comes to fuel economy abilities.
If you pair them with a massive F-250 chassis, you might be left with a fuel-hungry engine that will burn your budget. Let’s follow the next steps in order to get better mileage of your Ford v10.
How Can I Get Better Gas Mileage In My Ford V10?
Rear-mount twin-turbo system
First of all, you should install a rear-mount twin-turbo system.
You can do so by purchasing the universal components, but you need to make the rest of them by yourself.
If you do not possess the skills required for twin-turbo system fabrication, you need to seek someone that can help you out with this part.
You may start by taking a low-boost turbo system suitable for a 4.6-liter modular Mustang, and then you can customize it by adding a longer turbo-to-engine plumbing.
Numerically-lower rear axle gearing
The second step is to add a numerically-lower rear axle gearing.
The range should be from 2.2 to 2.25-to-1. This will help you keep the new turbocharged engine within the key efficiency range.
This means that the lower gearing aims to keep the rpm low, but, at the same time, you can also modify the required power output by making adjustments to the turbo boost.
In this situation, the turbo will fill the place of a variable-displacement mechanism. This will pump the correct amount of air into the engine, helping to maintain a certain level of speed with a given load.
Shorter and thinner tires on the rear and front
The third step is to place shorter and thinner tires on the rear and front.
This means to choose LT180/70 tires that come with a 2.6-inch drop in the ride height, compared to the stock F-250.
Alternatively, if you have dual rear tires, replace them with single ones. The second step is crucial to this point because the shorter tires will boost the final drive ratio by up to 17%.
Eliminate as much weight as possible
The fourth step is to eliminate as much weight as possible. Your truck cannot reach a high performance at 5,600 lbs.
Every pound that you can remove from your truck means that you can have a better gas mileage. Some examples include taking away the 4WD axle, running gear, transfer case.
You can boost the aerodynamics of your truck by choosing to install lowering springs and some stiffer shocks.
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Additionally, installing an air dam under the front bumper of your trick will improve the drag keeping and lift-inducing air underneath the truck.
In this case, you will also have to install vented fenders and hood, so you can keep evacuating the engine heat.
This will lastly result in improved fuel efficiency, and your truck will also be more stable when it has highway speed.
For the F-250 that comes with 8.3 inches of ground clearance, you might also be able to lower it two more inches after installing the shorter tires.
All in all, these steps will help you reach about 1,300 rpm or approximately 60 miles per hour.
However, with the turbo, the truck’s engine will most likely not have enough torque to maintain the 60 miles per hour.
This is why adjustments to the boost will make it all worth it: because you do not have to consume more fuel than necessary to retain the same speed.