Back to all

Direct Fuel Injection Update From Tuffy Auto Service Center Cincinatti

February 26, 2016

For those of you in Cincinnati, Ohio who pay attention to these things, you may have been hearing about the new direct injection engines and want to learn more about them. Some deliver the power of a V8 with the economy of a V6.

For example, in one family of engines the conventional V6 makes about 250 horsepower. The direct injection version of the same engine makes over 300 horsepower and gets essentially the same gas mileage. The turbocharged version makes over 350 horsepower.

So what are the differences from a conventional engine?

The core difference is in the fuel injection system. The system most vehicles use now is called a port injection system. The fuel injector squirts fuel into a port just outside the cylinder where it's then drawn into the engine with the air.

With a direct injection system, the injector squirts the fuel directly into the cylinder. The gain in power and economy come because fuel injected directly into the cylinder during the combustion cycle is burned much more efficiently.

First, the fuel is squirted in at hundreds of times more pressure, so it's atomized much better and burns cleaner and stronger. The other big advance is in electronics. Faster engine management computers can control the additional precision required to manage direct fuel injection.

Fuel injectors are precision instruments. They have to deliver a precise amount of fuel at exactly the right time. The design of the engine also dictates a particular spray pattern for the fuel. If a fuel injector is dirty or gummed up, it can't do its job as well. That means less power and worse fuel economy for your vehicle and can lead to damaged fuel injectors.

Replacing fuel injectors at Tuffy Auto Service Center Cincinatti isn't cheap. Direct injection injectors are even more expensive because of the extremely high-pressure they use. Same thing for diesel fuel injectors; we're talking mortgage payment-range to replace a set of diesel injectors.

A professional fuel system cleaning from Tuffy Auto Service Center Cincinatti gets out the gum and varnish in the whole system, including the fuel injectors. Keep those injectors clean and they'll last a long, long time.

Tuffy Auto Service Center Cincinatti
9401 Fields-Ertel, #320
Cincinnati, Ohio 45249
513-683-5060
http://webtools.autonettv.com

More articles from Tuffy Fields-Ertel Cincinnati

Nighttime Visibility in Cincinnati

July 14, 2024

There are a number of factors that contribute to the high nighttime accident rate in the Cincinnati area, things like drowsy driving and a higher rate of impaired driving. Without a doubt, visibility is a major contributor. Let's focus on visibilityIt's said that 90 percent of our driving decisio... More

When Metal Meets Metal (Wheel Bearings)

July 7, 2024

What part of your vehicle has little metal balls inside that are lubricated and allow you to cruise on down the road? They are wheel bearings, and automotive designers might argue they are human beings' second greatest invention of all time (the first is, of course, the wheel!). You have a wheel... More

Sounds Like a Hot Rod (Noisy Exhaust System)

June 30, 2024

Driving along, your exhaust system's rumbling so loud that people turn and stare at you pass by. You're wondering when the police are going to pull you over for illegal noise. Your mind immediately thinks, aha! A broken muffler. Well, your exhaust system is composed of many more parts than just... More