Revolutionary Self-Contained ProChargers
ATI SC ProCharger models are the first and only gear-driven centrifugal superchargers to feature self-lubrication, and contain the industry�s most advanced technology. The best-selling P-1SC (below) shares many of the design elements which deliver the record-setting durability and performance
of ProCharger competition superchargers, and is also quiet and street legal.
With their rugged design, these ProChargers are the only self-contained superchargers durable enough to be backed with a 3 year warranty and powerful enough to harness the benefits of intercooling. The patented SC design eliminates the need for oil lines and punching a hole in the oil pan, thanks to an exclusive oil pump. This pump aerates the oil to create the oil mist lubrication required for the ProCharger�s precision bearings and gears. This oil pump (aeration pump) does not require priming at start-up, and oil changes are required only every 6,000 miles. Additionally, instead of being forced to utilize engine oil or the grease in sealed bearings, SC ProChargers are lubricated with an extremely high quality synthetic oil which is specifically engineered for high speed use, and produces the least frictional heat and parasitic load. The self-contained design also eliminates the heat that is transferred to a supercharger by engine oil in oil-fed applications, and avoids the risk of clogged supercharger oil lines, oil drainage problems, or engine oil leakage. By combining advanced supercharger transmission design with the highest quality oil, SC ProChargers produce a larger net power gain because they run cooler and consume less power than comparable oil-fed designs. SC ProChargers also feature an internal step-up ratio of 4.10:1 for improved belt tracking and traction, and maximum low-rpm boost and power.

It is this approach that allows ATI to offer exclusive features which improve both the performance and reliability of ProCharger systems relative to other products. For example, it is simply an undisputed fact that lowering the engine intake temperature will substantially improve both performance and engine longevity, and ATI provides the coolest intake charge air temperature in the industry by a wide margin. Similarly, by using CNC machining and nearly indestructable 7075 T-6 aircraft aluminum to produce the largest and strongest impellers in the industry, ATI is able to again improve both performance and reliability. The ProCharger is the only supercharger to incorporate a billet impeller in production models, and is another example of ATI's technical leadership. This quality and durability in turn allows ProCharger customers to have further peace of mind knowing that ProCharger superchargers are also backed by the best warranty in the industry. For more information on the physics behind supercharging and the advantages of ProCharger technology, see the ProCharger Technology page within this site.

In addition to absolutely unmatched performance and reliability, ProCharger supercharger systems also offer the following benefits to customers:

Quality
ProCharger supercharger systems are produced from the finest materials available. All castings are poured from "virgin" 356 aluminum alloy and heat-treated to a T-6 hardness before CNC machining. ATI's exclusive billet impellers are machined from 7075 T-6 aircraft aluminum, while the super precision bearings used in all ProCharger models are made in the USA, and are of a consistently higher quality and speed/load rating than those used by any of our competitors. In fact, ProCharger superchargers are so reliable that they are used as standard equipment by many leading boat manufacturers in the extremely demanding marine environment. ATI is the only centrifugal supercharger which can be ordered as OEM equipment from any performance boat manufacturer.

Complete Systems
All fuel-injected automotive and truck ProCharger Systems are 100% complete, with all the components needed for an attractive, OEM-quality installation. All hardware is of the highest quality, and all fuel-injected systems even include a high-flow external fuel pump as standard equipment. Carbureted systems are complete with the exception of the carburetor and fuel system, which depend upon an individual's specific motor and performance needs.


Warranty
ProCharger superchargers are absolutely the most reliable (have the lowest failure rate) in the industry, and are backed by the industry's best warranty coverage. It is not uncommon to find ProCharger systems warrantied for 1 year at power levels which our competitors will not even warranty for 1 day.

Installation
Most Intercooled ProCharger systems can be installed in 8-10 hours with simple hand tools. Carbureted systems can generally be installed in 4-6 hours. All ProCharger systems contain extremely thorough installation instructions with plenty of photos, illustrations and diagrams to help ensure a successful installation.

Emissions
Unless otherwise noted, all ProCharger systems for fuel-injected applications meet both EPA and CARB emmissions requirements and are classified as 50 state legal.

SC ProChargers also feature:
• An internal step-up ratio of 4.10:1. (eleminates belt slip)
• Cast with permanent molds for the highest quality and finish.
• Supports up to 1200 cfm and 825 horsepower.
• Billet, Helixed or Radial impellers.
• Oil System Self Contained.

Why has supercharging become so popular?
There are a number of reasons. First, an efficient supercharger system can produce yesterday's musclecar performance using today's low-octane gasoline, with exceptional reliability and minimal impact upon fuel economy. Second, superchargers have developed to the point that they are easy to install and simple to maintain, especially when compared to pulling, rebuilding and fine-tuning an engine. Finally, unlike nitrous oxide, which requires frequent repurchase of fuel, once a supercharger is installed there is no more expense or hassle associated with performance. In short, supercharging delivers exceptional performance with little of the hassles traditionally associated with high performance. Centrifugal supercharging is the only way to make a reliable 500, 600, 700+ horsepower on otherwise stock, daily driven V-8's.


How does supercharging increase engine performance?
Superchargers achieve performance gains by increasing the density of the air/fuel charge within the combustion chambers of an engine. This increase in density is achieved by forcing additional amounts of air (beyond the amount of air that normal atmospheric pressure would force into the engine) at the lowest temperature possible. CFM measures the volume of air that an engine is flowing, while MAF (mass air flow) also factors in the temperature of the air charge, since a cooler charge is more dense and therefore more powerful. So in more technical terms, supercharging increases both the volumetric efficiency of the engine and the mass air flow through the engine to produce gains in both horsepower and torque.


How much horsepower will a supercharger add to my engine?
Although some manufacturers claim a specific horsepower increase, superchargers actually add horsepower as a percentage gain (percentage of an atmosphere). Assuming an engine with a compression ratio of around 9:1 running pump gas,if a supercharger gives your engine 14.7 psi of boost (another atmosphere) that will essentially double the output of your engine, everything else being equal. After adjusting for thermal and mechanical energy transfer, if an efficient centrifugal supercharger is generating 7.5 psi (approx. 1/2 an atmosphere), you will see around a 35-40% gain in horsepower and torque at your non-supercharged maximum horsepower rpm. If detonation forces you to use an ignition/timing retard system, you will of course see less of a gain because backing off several degrees of timing will greatly reduce an engine's power output. At higher boost levels, the heat generated by compressing air will produce diminishing returns as the boost is increased, although the use of intercooling or racing fuel can avoid this scenario of diminishing returns. Assuming the use of intercooling to run higher boost levels while maintaining reliability, a 100% increase can generally be achieved at around 17 psi on an engine with 9:1 compression running pump gas. The gains in horsepower and torque delivered by each ProCharger system can be found on the price list as well as on the "ProCharger Systems" page within this site.


Are ProCharger systems 50 state legal?
Most ProCharger systems are 50 state legal. For information on the regulatory status of a specific ProCharger system, please consult the price list which is supplied with every product literature mailing.


What type of fuel do I need with a supercharged automotive or truck engine?
The primary issues that determine the type of fuel needed are whether the engine is fuel-injected or carbureted, the compression ratio of the engine, and whether or not the supercharger system is intercooled.
For Intercooled ProCharger EFI/TPI applications with compression ratios less than 9.5:1, boost levels of 14-17 psi can be safely run with full timing on pump gas, and will produce horsepower gains of 75-100% (depending upon the boost level and the motor specifications). For 9.5:1 EFI/TPI applications running without an intercooler, boost levels above 5 psi will require the use of ignition/timing retard on pump gas, and will produce horsepower gains of 35-45%. Boost levels above 12 psi should generally be avoided even with racing fuel on a 9.5:1 motor. Of course, lower compression motors will be able to run more boost, and higher compression motors should run less boost, everything else being equal. All Intercooled ProCharger systems for street applications are designed to allow the use of pump gas with full timing and will not affect daily drivability.
For carbureted motors, the rules are slightly different. Carburetors deliver the vast majority of fuel in a liquid state, and as this raw fuel atomizes from liquid to gas, a chemical state change actually occurs. Due to this endothermic reaction, which draws heat and cools the incoming air, a carbureted motor can safely handle more boost than a comparable EFI/TPI motor. For carbureted engines with compression ratios of 9:1 or less and boost levels in the 8-14 psi range, pump gasoline works very well. Compression ratios of 10:1 and higher require lower boost levels, higher octane fuel, intercooling, or some combination of the above. Compression ratios in the 7or 8:1 range can usually handle 12-20 psi on pump gasoline.


What is detonation, and how can it be controlled?
Detonation, or engine knock, occurs simply when fuel pre-ignites before the piston reaches scheduled spark ignition. This means that a powerful explosion is trying to expand a cylinder chamber that is shrinking in size, attempting to reverse the direction of the piston and the engine. When detonation occurs, the internal pneumatic forces can actually exceed 10x the normal forces acting upon a properly operating high performance engine. Detonation is generally caused by excessive heat, excessive cylinder pressure, improper ignition timing, inadequate fuel octane or a combination of these. Of the previous, excessive heat is usually the culprit. As an engine is modified to generate more power, additional heat is produced. Today's pump gas will only tolerate a finite amount of heat before it pre-ignites and causes detonation. Although forced induction engines usually produce far less heat than comparable naturally aspirated high compression engines, the cylinder temperatures in intercooled engines are radically cooler yet. It is rarely boost that causes detonation, just unnecessary heat. An intercooler is such a natural solution for forced induction, that in almost every sophisticated application, intercooling is part of the package.
For engines that are experiencing detonation problems, the primary options are the use of ignition/timing retard systems, higher octane fuel, or intercooling. While ignition retard systems can be helpful in certain situations, they can also greatly reduce the horsepower output of an engine, as any reduction in timing will reduce horsepower. And while a reduction in timing can save a motor from detonation, the excessive heat which was causing the detonation is still present. Intercooling, on the other hand, actually removes the heat which causes detonation, and allows higher boost levels to be safely run with full timing on pump gas. This produces the maximum benefit in terms of both horsepower gains and engine protection, without any additional maintenance or hassle.


How will a supercharger affect my fuel economy?
Although roots superchargers have significant parasitic load and do dramatically decrease fuel economy, centrifugal superchargers will yield approximately the same fuel economy as normally aspirated engines, under normal throttle conditions. When racing, however, fuel enconomy will decrease given the supercharged engine's ability to consume additional fuel and produce additional horsepower.


What type of warranty is provided with ProCharger systems?
Most ProCharger systems are covered by a 1 year warranty, although a 3 year extended coverage policy is available for many automotive and truck applications. For information on the warranty coverage for a specific ProCharger system, please consult the price list which is supplied with every product literature mailing.


How long does it take to install a ProCharger system?
Most ProCharger systems can be installed in 8-10 hours with simple hand tools. All ProCharger street supercharger systems are engineered to the highest quality standards, with no need for cutting of body panels or alterations to stock hardware. Race-only products and ProCharger systems with certain higher-performance upgrades/options may require some minor vehicle modification. Please call to speak with a technician if you have any questions about your specific application.


Will a supercharger shorten the life of my engine or drivetrain?
That is a very subjective question, as the manner in which an automobile is driven directly affects engine life. Assuming a properly tuned system, proper oil change and engine maintenance, and similar driving, supercharging generally will not shorten the life of an engine, just as is the case with OEM turbocharging (with proper cooldown for turbochargers. A cooldown period after driving is not necessary with supercharging). This is especially true of centrifugal supercharging, which generates boost in line with engine rpm, unlike roots and twin screw blowers, whose low rpm boost can place additional strain on the engine and drive train.
Superchargers can be used with automatic or manual transmissions and will not increase transmission wear under normal driving. When racing, however, the additional torque provided by supercharging will place additional load on the transmission, especially when increased traction is present, such as with slicks. This impact is minimized when the boost increases with engine rpm, as is the case with centrifugal supercharging and turbocharging.

 

ProCharger Technology

 

Intercooled Procharger Non-Intercooled Superchargers

ProCharger� supercharger systems are absolutely the most powerful and reliable supercharger systems available for your vehicle. Nothing else even comes close! This is possible only because the quality and design of ProCharger systems are simply second to none. Of course the most important component is the supercharger itself, and ProCharger superchargers are absolutely the most powerful and durable superchargers available - for any airflow requirement. And for customers who want additional power and reliability beyond that possible from a supercharger alone, ATI is the only company which offers an integrated air-to-air intercooler system, the same type of intercooler system that is standard on millions of OEM forced induction applications worldwide. Others may imitate, but ProCharger technology is the best you can buy.
 

ProCharger SuperChargers THE INDUSTRY LEADER Overall Performance  Advanced Technology  Reliability/Warranty  Airflow, HP Gains  Upgradability

Intercooled Supercharging INTERCOOLING PHYSICS Boyle's Gas Law  Supercharger vs. System Efficiency  Max HP Gains  Engine Reliability

ProCharger systems outperform competing products across virtually every objective performance criteria. And while every manufacturer would like to believe their products are the best, a consumer can evaluate whose claims are true by evaluating the facts behind the products. For example, the product with the best warranty coverage is probably more reliable than a similar product with less warranty coverage. Why? Because if a product breaks under warranty, the manufacturer must pay for the repair, so manufacturers of less reliable products offer shorter warranties so they can charge their customers rather than incur the expense themselves. Similarly, in the case of supercharging it is possible to evaluate the efficiency of a supercharger system.

 Have you ever driven one of these F Body cars with an ATI ProCharger? The car stills maintains its excellent street manners, and will still get great gas mileage. I purchased a '99 Z28 110,000 mile Camaro off of Ebay several years ago, and we installed Hooker Headers, Hooker Off Road Y Pipe and the car already had a Hooker Cat Back on it. We then saw 310hp at the tires on our Mustang Chassis Dyno.  We then installed an ATI D-1SC "tuner" kit on the car, and added 50lb Holley fuel injectors, a Holley/Walbro 255 litre fuel pump, and computer tuning. With just 7 pounds of boost, we saw 415hp at the tires on our dyno! This was with 110,000 miles on the untouched engine. I now have 126,000 miles on the car, and have not had one single problem, none! I take customer's out in the car almost weekly, and show them what the car can do, so the car does see a lot of full throttle runs. The car is much faster than what people imagine it would be, and yet it runs just like it did when it was stock around town. The only giveaway is the supercharger whine, which is music to my ears. This system is also for those who plan to do a lot of upgrades to their car, as the D-1SC is very capable of pushing a lot of additional boost. I recommend this "tuner" kit for anyone thinking about buying a supercharger. What is a "tuner" kit? The ATI ProCharger "tuner" kits come with everything required to install the supercharger and intercoolers, but it does not come with fuel injectors, no fuel pump, and it requires computer tuning for the vehicle. Fuel injectors are $420.00 for 60lb Siemens injectors, and the GSS340 Walbro fuel  pump is $115.00. Most places charge around $450.00 for computer tuning for the LS1/LS6 engines, and once the air/fuel ratio is adjusted to around 11.5/1 at wide open throttle, you will be rewarded with a very powerful car.

Note: If you have headers and a good aftermarket exhaust system, let us know so we can have ATI supply your ProCharger with a smaller pulley to keep your boost up where ATI designed for it to be. We have seen a D-1SC (4.00 pulley) with stock exhaust that was putting out 8 1/2lbs of boost, drop to 7 lbs of boost once we installed headers and a good exhaust system.