Things You Should Know Before You Buy!

There are a lot of fuel injection systems out there to choose from. So how do you know which one to buy? Simple really… You need to educate yourself. As you’ll see shortly, the choice is really not all that difficult. Here are some things you should know. Read carefully. These are things you need to understand before you make your purchase, no matter who you end up buying from

First, let’s discuss the reasons why you might be considering purchasing a fuel injection system. There are four areas in which a fuel injection system can improve performance. They are: Drivability, Horsepower, Torque, and Fuel economy. How successful the fuel injection system will be at accomplishing these things will be determined by the quality of the “tune” written within the processor. Any fuel injection system you buy will consist of a box full of parts that you will need to install on your vehicle. And, while the quality of those components is important, they will have little to do with how well your fuel injection system actually works. When you buy a fuel injection system, what you really should be considering is the quality of the tune. The fact is, most of the fuel injection systems being offered by our competition do not even have a tune. Their sales literature will usually say something like “Use our software to create a tune that is specific to your engine”. That is just sales jargon for “Our computer does not have a tune and It will be up to you to write a tune that will work for your engine”. These systems honestly are not worth considering. The idea that you, or a dyno tuner, could duplicate the knowledge that is already contained within our OEM processor is simply not practical.

The newest trend is the “self tuning” speed density fuel injection systems. Don’t be fooled. Some come with hand held controllers, and some require a laptop. Either way, you’re telling the computer what to do, and more importantly, the base tune contained in these processors cannot compare to the amount of knowledge that goes into our OEM production processors. It’s not even close.

Second, let’s discuss the ignition system. Does the fuel injection system you are considering control ignition timing? If it doesn’t, then it is only doing half the job. Engine management consists of two things… Control over the air/fuel ratio and control over ignition timing. Optimum performance depends on proper control of both of these. If the system you are considering does not control ignition timing, then it is not worth considering. Also, if it does control ignition timing, but relies upon you, or a dyno tuner, to set the optimum advance curve over all the endless scenarios that your processor will encounter, then again, it’s not worth buying.

Does the system you are considering use Mass Air management? A mass air sensor takes all of the guess work out of engine management. Companies that do not use mass air technology will tell you that the mass air sensor can be a restriction. A properly sized mass air sensor is not a restriction. It simply needs to be large enough that it does not create a restriction, so don’t be misled by that claim. Without a mass air sensor, it’s all just trail and error. Again, it is not practical to assume that you could duplicate the knowledge that goes into a production OEM processor. You should also be aware that a mass air system allows you much more flexibility with your combination of engine parts. Manifold vacuum is no longer a concern, since a mass air system does not measure manifold vacuum. Speed density systems rely heavily on manifold vacuum. If the system you are considering does not use Mass Air technology, then you should look elsewhere.

Does the system you are considering consist of production OEM parts? This is important. The advantages of using OEM parts cannot be denied. First, OEM parts are always available. They are right on the shelf at the local parts store. There is no worry that the company you bought your system from will go out of business. The parts will always be there. Second, the quality of these parts is something that simply cannot be achieved in the aftermarket. The most important example of this is the processor. Just remove the cover from one of the competitions’ processors. They use technology that was abandoned by the OEM about 15 years ago, and look as if they were assembled in somebody’s back yard electronics shop. Building an OEM quality processor that will be duplicated hundreds of thousands of times is a huge undertaking, and one that simply cannot be achieved in the aftermarket. Some EFI suppliers will claim that you are being restricted by the OEM processor. That claim is simply untrue. The OEM processors contain a level of capability that they can never hope to achieve, at a level of quality they can only dream of. Also, the OEM processors can be tuned if you so desire. So if you are one of those people that just cannot resist, and you must get into the tune and play with it, we offer that too. That capability also already exists at nearly any dyno shop throughout the country. Dyno shops that utilize products from SCT, Sniper, Diablo and others are more that capable of doing these for you as well. The fact is, even if you want to tune, you’re far better off starting with a quality OEM processor, with a tune that already works. If the system you are considering does not consist of OEM “off the shelf” parts, then you should reconsider. The day will come when those parts fail and are no longer available.

Is the system you are considering a “Port Fuel Injected” EFI system? Fuel injection has made great strides over the years. The first electronic systems were throttle body injected speed density systems. Later, the injectors were moved from the throttle body down to the base of each intake runner for more precise fuel control. These systems used “batch firing”, which means that all of the injectors were all fired at the same time. Later came “bank firing”, which meant that the injectors were fired one side at a time. Then came “sequential” injection. This means that the injectors are fired individually, and precisely timed to fire at the right moment. Lastly was the introduction of Mass Air. This allowed the manufacturers much more freedom. These systems are vastly easier to tune, and allow use of more performance oriented engine combinations. It also allows the end user a lot of flexibility to make performance modifications. With Mass Air technology, lack of manifold vacuum is no longer a concern. The mass air system does not measure manifold vacuum (something that the speed density systems rely upon heavily). Each system was replaced with the next generation with good reason. Our system represents the latest technology. It is a Port Injected, Sequential Fired, Mass Air system. If the fuel injection system you are considering is not all of these things, then you should consider looking elsewhere.

If something were to go wrong with your system, could you fix it? If you can’t, you’ll need to take it somewhere to be diagnosed. Our system is so simple to understand that there is not much you can’t accomplish on your own, and if you need help, our tech support department is always there for you. Not so much with the other guys… Diagnosis is the first step in repairing a problem. Should you need to take your car elsewhere for service, will they be able to help you? Keep in mind that our system is comprised of the same management system components that these guys are already used to and familiar with, so diagnosis is easy. This is a feature that you simply will not find elsewhere. Remember… Every minute your shop spends on the phone with tech support, while they teach your mechanic how to work on their system, is more money out of your pocket.

Once you know what part needs to be replaced, can you get it? The parts for our system are on the shelf at the local parts store. The parts for the other guy’s systems are on their shelves only. That’s assuming that they are still in business, and that they still stock parts for your older system. You should also consider how long will it take to get them. What would you do if you were far from home, and the parts were half way across the country? Next day air is nice, but expensive, and you’ll be renting a room for the night.

Additional Mass-Flo EFI Features

Cooling Fan Control: Simple one wire hookup for cooling fans. Just connect the provided power supply to your cooling fan, and the computer cycles the fan on and off based on coolant temperature.

Idle Compensation For Air Conditioning: The computer will automatically adjust the idle speed to compensate for the drag created by your air conditioning compressor.

Air Conditioning Compressor Cutoff: The computer will automatically cut power to the air conditioning compressor at full throttle, saving horsepower for maximum performance during acceleration.