Chevy / 350 HP Mass Flo EFI Engine
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Stroker Chevy / 450 HP
Mass Flo EFI Engine
TRUE PLUG AND PLAY FUEL INJECTION
NO TUNING, NO PROGRAMMING, NO DYNO, NO HASSLES!
DRIVABILITY, INCREDIBLE FUEL ECONOMY!
the bottom of this page for a list of available systems.
Make no mistake... This is the best fuel injection system
available. All the benefits of a MASS AIR fuel
injection system with the vintage look of a 4bbl carburetor.
It is NOT A SPEED DENSITY SYSTEM like other similar
systems. It uses production (not aftermarket) mass air
engine management, for years of trouble-free service and
production car quality driveabilty, while providing real
performance benefits over a carburetor or a speed density
system? Here's why!
Don't settle for
empty promises, GET REAL RESULTS! The other companies
make it sound as if it's a benefit to have the ability to
"tune" their systems. It's NOT a benefit... IT'S A
HASSLE! The reality is,
density EFI systems are not much more efficient than a 4 bbl
carburetor. You're punching keys on a computer, rather than
turning screws and changing jets and springs in a
carburetor. The end result is an expensive system, that cost
almost as much money to get tuned properly as the initial
cost of the system. And where is the advantage? They require
constant laptop fiddling to keep running properly. You could
have gotten that with a carburetor!
a little more efficient than a carburetor, but not enough to
justify the cost. The only thing worse than a programmable
speed density system, (besides a carburetor), is a
NON-programmable speed density system. Non-programmable
speed density systems only work on bone stock or specific
applications. Non-programmable (or non user-programmable)
systems are factory calibrated to a specific engine, with a
specific combination of parts. They have no provision to
account for variances such as engine modifications (even
minor ones!), vehicle specifics, or atmospheric conditions.
The result is, they just do not work very well.
Our MASS AIR
system does it all for you, and provides REAL PERFORMANCE
BENEFITS over a carburetor or speed density system. It
is by far the most user-friendly and most effective
aftermarket fuel injection system on the market. Get
improved power and torque as well as improved fuel economy,
performance and reliability. Unlike programmable speed
density systems, you will never need to tune this system. No
laptop, no hand-held programmer, no tuning or tweeking, no
dyno! This saves you the hassle and expense of tuning
and trips to the dyno. When it comes time to make further
engine mods, chances are you will not need to change a thing
on our system. If you plan to make LARGE gains in
horsepower, and you need to change your injector size, just
return the air meter, and we will recalibrate it for you,
rather than retuning, reprogramming, and more trips to the
dyno. Our system is even easier to use than a carburetor.
You need to tune a carburetor. With our system, you just
install it, and you're done!
does it work?
naturally aspirated engine, regardless of brand, size,
combination of parts, etc., requires a given air/fuel ratio,
at a given load. These ratios do not change from engine to
engine, until you get into forced induction applications.
(We'll get to that later). The needed air/fuel ratio changes
with such things as engine temperature, air temperature, and
atmospheric pressure, but the needed changes, again, are the
same for all engines. The task for any management system is
to add the correct amount of fuel to the amount of air that
the engine uses. Carburetors do it mechanically, and so, are
mechanically limited as to how accurate they can be. Speed
density systems do it by comparing the readings from various
sensors to tables within the engine controller to try to
determine the amount of air the engine is using. This
actually works very well, IF THE VALUES IN THE TABLES ARE
CORRECT, and there lies the challenge. There are a lot of
values, and a lot of tables, and a professional tuner is
required to enter the correct values into all of those cells
in all of those tables. But you are not done there! The next
step is to drive the vehicle in the real world, and adjust
all of those values to tune out all of the drivability
issues you will have. The other problem is speed density's
limited ability to self adjust, and so, your laptop must
permanently reside in the passenger's seat. Worse than that,
non-programmable, or pre-programmed speed density systems
arrive at your door with the programming done. They have
been pre-tuned at the manufacturer on the dyno with a
pre-determined combination of parts on a specific engine.
That would be great, but remember the part where this does
not really work very well in the real world? Well, with
these systems, you can't even fix it! Even worse, if you
want to make a change to your engine, you simply can't.
does it differently. There is a Mass Air Flow Meter Hidden
away inside your air cleaner. This meter can actually
measure the amount of air that is entering your engine, and
again, if you know how much air the engine is using, then
you just add the correct amount of fuel. It's that simple.
The air/fuel ratio is adjusted accordingly to compensate for
the load, and variances in engine temperature, air
temperature, and atmospheric pressure by reading values from
sensors that are included in the system. If you decide to
make improvements to your engine, Mass-Flo simply adapts to
those changes. Keep in mind... An engine is just a big air
pump. Changing heads, camshafts, intakes, exhaust systems,
displacement, etc., are just ways of making your air pump
more efficient, or in other words, using more air. Since
Mass-Flo measures the amount of air the engine is using, it
simply adds the correct amount of fuel. With speed density,
it's back to the dyno to start all over again.
induction applications, the ratios are different, and a
different tune is needed. We also have a tune to cover those
applications. In fact, Mass-Flo can be adapted just about
anywhere. If you want something made custom, let us know. We
can do dual quads, and other applications where two Mass Air
Meters are required. In all cases, no tuning is ever
required by the customer.
one other thing we should mention... Speed density relies
heavily on the signal from the MAP (manifold air pressure)
sensor to determine how much fuel to add. This sensor
measures the engine's vacuum at the manifold. So what
happens when your camshaft produces poor vacuum? You guessed
it... Horrible drivability is the result. Mass-Flo does not
use a MAP sensor. You can use any camshaft you want with our
Not all Mass
Air systems are created equal.
frequently get calls from people who say that they already
have mass air management in their production vehicle, and
when they made changes to their engine, they needed to get a
chip burned to make it run correctly. Many will say that
even the chip did not make it right. They are correct...
is, there is only one management system on the planet that
will allow us to do what we do... OURS!
production management systems will work wonders with a stock
engine, or something with minor modifications, but are not
so great with an engine that is too far from stock. General
Motors systems, for instance, do not respond well to major
upgrades, and no amount of chip tuning or dyno time will
make it right. They run, but not quite as well as they
should. Ours works differently. It's all in the programming!
I know what you
are thinking... We just told you that the system does not
require tuning, so why are we offering it? The answer is...
some customers want custom features, so we offer this as an
option. For example... The computer's pre-set rev limit is
6250 RPM. Some customers may want this changed. We can make
the computer run an electric cooling fan if you'd like. It
can run coil packs, or coil-on-plug systems. We can even
create a program with two distinctly different "tunes". For
example, you could have your daily driver "tune", and
another one for the valet that will limit the engines RPM.
There are many possibilities. Give us a call to discuss your
Things you should know before
matter how good any system is, eventually, you may need
parts or service. It may be 20 years from now, but at some
point, it may happen. Truthfully this system is quite
simple, and there is little that could go wrong, but should
something happen, someone will need to diagnose the system,
and get replacement parts.
Let's look at the first part... Diagnosis. First of all,
when you go to the garage for repair work on any of the
other systems out there, you'll likely have trouble getting
them to work on your engine, because the system is
unfamiliar to them. If they will work on it, they will not
have diagnostic information readily available to them, and
they will need to spend wasted hours on the phone with the
manufacturer getting tech support. All the while your repair
bill is growing ever larger. With our system, everything is
familiar. Since our system uses production engine
management, it is serviceable at ANY automotive service
center. Unlike the other systems on the market, our system
is comprised entirely of proven and familiar components that
have been used for years in regular production vehicles.
Almost every repair shop has a diagnostic scan tool to get
diagnostic information and trouble codes from production
engine management systems, and the literature necessary to
make the correct diagnosis (code definitions, and diagnostic
charts), so diagnostics on our system is easy. In fact, most
problems you could easily fix yourself. All that's required
to get trouble codes with our system is a jumper wire, and
the code definitions are right in your manual.
Now the second part... Getting parts. Since our system is
comprised entirely of components used on regular production
vehicles, everything you will ever need is on the shelf at
the local parts store, AND ALWAYS WILL BE! Try that
with the other systems! With their systems, you'll need to
buy parts directly from them, and wait for them to arrive.
In the mean time, you're going nowhere. That's assuming that
parts are still available. Most companies change products
every couple of years, and discontinue the old stuff. How
about if the processor (computer) goes bad? There goes all
that time you spent programming! With our system, you just
go to ANY parts store, pick up a new processor, and plug it
in. It's already all programmed and ready to go, right off
the shelf! The other thing worth mentioning, is the fact
that we could go out of business tomorrow, and it would not
mean a thing to you as the customer. We have no intentions
of going anywhere, but it happens, and if it did, everything
you will ever need will still be at the parts store.
* Four barrel Intake manifold for your application.
Many systems have a choice of intakes. Please call to
discuss your application.
* Our own custom 1000 CFM 4bbl throttle body. It
features all aluminum and stainless steel construction,
sealed ball bearings on the throttle shafts, and progressive
linkage. Comes complete with idle control motor and throttle
position sensor. This is absolutely the finest 4 bbl
throttle body on the market!
* Jumbo fuel rails and mounts. Rails have 9/16"
diameter bores providing excellent flow and dampening
* Our custom compact high flow mass air meter (Patent
pending). The air meter is concealed within the air cleaner
of your choice to maintain the vintage look!
Complete stand alone wiring harness. This high quality
harness allows easy installation of EFI into any vehicle
without connecting to your existing harness.
Production mass air computer.
Eight high quality fuel injectors. Standard sizes are 19,
24, 30, 36, or 42 pound/hr flow rate. Larger sizes are
available at extra cost. These fuel injectors are held to
much closer tolerance than typical production injectors. We
will help you choose the correct size for your application.
All needed sensors. Most of the sensors are mounted right on
the injection system for a simple install. No crank sensor
to complicate the process!
High performance billet aluminum distributor complete with
ignition module. Our entire ignition system is contained
within the distributor and ECM. Just install the distributor
and plug it into the harness. No spark boxes to install!
High performance coil, with heat sink/mounting bracket.
* Base gasket, throttle cable bracket, assorted
hardware and fittings necessary for the installation, PCV
All of these components are absolutely the best quality
available. Unlike the competition, we will never sell you
something that is "good enough" just because it costs less
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