Page 26 of NOS Nitrous Systems by Holley Performance Products, Inc.

technical sport compact direct port design nitrous systems horsepower adjustable efi wet dry systems powerful direct port system for 4cylinder engines the nos pro race fogger® system represents the ultimate in state-of-the-art direct-port nitrous injection technology simply stated it produces the largest horsepower gains of any single stage nitrous system available today and is designed for all-out competition-only import four cylinder and rotary engines several toprunning pro imports have recorded 7-second clockings with this system the primary benefit of port injection is that fuel and nitrous are introduced into the intake tract of each cylinder individually and can be jetted to provide the optimum fuel/nitrous charge for each particular cylinder and because of the cool dense fog like charge of atomized fuel and nitrous it will produce optimum power some of the key components in this system are a super hi-flo bottle valve pro race solenoids the highest flowing available y-shaped distribution blocks stainless steel lines and your choice of soft plume 90° or annular discharge stainless steel nozzles they are adjustable to produce power gains from 80 to well over 225 hp the pro race fogger® system for imports is offered in kit form and it can also be installed on your manifold by the experts at nos get maximum power with complete reliability from the no 1 name in nitrous for over 20 years nos 80-225 direct port systems supercharger turbo systems plate systems hidden systems system 04430nos 04431nos pro race fogger import systems application competition use pro race fogger 4 cyl systems w/stainless soft plume nozzles pro race fogger 4 cyl systems w/stainless annular nozzles powersports systems carbureted applications use a fuel pump designed to operate between 5 and 10 psi with a flow rate of 0.1 gph gallons per hour per horsepower at 6 psi please note that most aftermarket pumps are rated under free flowing conditions at 6 psi their flow rates may be greatly reduced check the manufacturer s specifications carefully or have the pump checked before you use it components accessories solenoids jets nitrous controllers electrical components system requirements the pro race fogger system is designed for use with competition race engines only fuel injected applications use fuel pumps that flows at least 0.1 gph gallons per hour per horsepower at system pressure for example at 42 psi flowing an engine that makes 450 hp while the nitrous system is activated will require at least 45 gph at 42 psi flowing while going down the track without experiencing any pressure loss please note that most aftermarket pumps are rated under free flowing conditions at system pressure their flow rates may be greatly reduced check the manufacturer s specifications carefully or have the pump checked before you use it due to the high power levels and cylinder pressures produced by pro race fogger systems you must use high strength forged pistons rods and crankshaft use of cylinder head and main studs will help insure reliability a high quality racing ignition system with timing control must be used with these systems use of racing gas is recommended note nos sells and supports a full line of competition fuel system components note kits are available without bottle and bottle brackets add nb to part number ex xxxx-nbnos plates throttle bodies nozzles recommended optional accessories nitrous pressure gauge see pg 82 fuel pressure gauge see pg 82 nitrous bottle heater see pg 64 progressive nitrous controller see pg 66 nos purge valve see pg 62 distribution blocks fittings hoses tubing these systems utilize the best flowing solenoid on the planet the exclusive r-series from nos with a high-lift plunger ported passages a direct flow path and very low current draw part index tools merchandising fuel pumps regulators gauges 42 www.nosnitrous.com

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