Best Starting Conversion

Best Starting Upgrade/Conversion: Our Top Recommendations

If you have a car that is diesel-powered, keep on reading the rest of this post, and we will provide you with ideas on the best starting upgrade/conversion that you might want to consider. There are many parts of the engine that can be modified and replaced, each with the promise of making sure that it will help in the improvement of the overall performance.

You do not need to spend a fortune to have a car that performs better than your last. Many would think of getting the latest model, thinking that it has a higher-powered engine. However, you can enjoy improved performance sans the high cost through simple conversions and upgrades such as:

  1. Use glow plug override kits.
  2. Bore the cylinders in your car engine.
  3. Upgrade to a cold air intake.
  4. Upgrade to new diesel fuel injectors.
  5. Upgrade the exhaust system.
  6. Add fuel additives.

Read the rest of this post and learn more about some of the best things that you can do.

Glow Plug Relay

This is one that can prove to be best for old models of Mercedes cars. Through the years, you will notice that the glow plug and the glow plug relay will become problematic. Some of the signs that can be indicative of this include draining your battery and overheating the glow plugs, which can lead to more serious issues when they are not addressed immediately.

The old glow plug relays are no longer available these days. For this reason, you need to find a suitable upgrade or conversion. As shown in the video below, you can consider using Mercedes source glow plug override kits. It is not only more affordable but also easily accessible. Watch the clip below to learn more about how it works.

Cylinder Liners

Dry and wet cylinders are among the main parts of a diesel engine. Wet cylinder liners exist in the form of removable liner sleeves that you can find on the cylinder block. On the other hand, dry cylinders are incorporated into the chamber. These cylinders are created for the purpose of making a tight seal so that compression won’t be able to escape.

One of the best upgrades and conversions that you can do in your engine is to bore the cylinders. In effect, there will be a greater area for compression as more fuel is burned. In turn, this will also provide the engine with more horsepower. This task, however, is not a simple DIY task. You will need to ask for a helping hand from experienced professionals to make the diameter of the cylinder bigger than it actually is.

Cold Air Intake

While cold air intakes have been around for quite some time now, there are still many people who are unable to see the benefits of using this as an upgrade to a diesel engine. The original air intake of your vehicle is not enough. In fact, it can restrict airflow, failing to provide the cooling that is required by your engine and all other components.

It is important to note the fact that for the diesel engine to run at its best, one of the main requirements would be plenty of air. This is exactly what can be provided by a cold air intake. It improves the amount of cold air from the outside that reaches the engine. It also improves filtration capabilities to be sure that impurities are kept out.

Diesel Fuel Injectors

Upgrading to a cold air intake is best done when it is complemented by having a new diesel fuel injector. They are designed to increase the amount of fuel that passes through the combustion chamber. It will result in a higher power output produced by the diesel engine. To add, it is also claimed that this can lead to up to a 20% reduction in fuel consumption.

When performing this upgrade, however, it is important to keep in mind that not all of the fuel injectors are the same. You need to find one that is suitable for the power requirements of the engine that you have. Using an injector with too much power can lead to the burning of the fuel, which can also speed up the wear of the engine.

Performance Exhaust Systems

Performance Exhaust System

The upgrading of the exhaust system will help in the reduction of engine heat. To add, it will also expel the gases that are produced by combustion. The original exhaust systems that you have in your car are designed basically to lessen the noise that is produced. Upgrading can be beneficial because it can improve performance, not just reduce noise.

Your original exhaust systems will have a narrow diameter compared to the aftermarket performance exhaust systems. To add, the latter is also straighter compared to the OEM. The difference in the design and the shape is the one that is responsible for the improvement of torque and horsepower by as much as 20 HP.

Fuel Additives

This is one of the simplest and cheapest of the upgrades that you might want to consider for a diesel engine. The good thing about this is that there is no need to replace or purchase any component. Instead, you will just mix the right additive in your fuel, and it can already bring significant performance benefits.

The additive has the main function of being able to improve the combustion rate of the fuel. With this, you will be able to have a smoother driving experience. It will also improve the horsepower of your vehicle, though the exact rate at how much it can do so will depend on the specific additive that you will be using.


Do you want a car that performs better? While many would say that the best thing to do is to buy a newer car equipped with a more powerful engine, this is not a financially-sound solution. Instead, the better thing to do is to consider the best starting upgrade/conversion suggestions that have been mentioned above.

As discussed, to improve the performance of your engine, some of the upgrades and conversions that you might want to consider include glow plug relays, cylinder liners, cold air intake, fuel injectors, performance exhaust systems, and diesel additives.