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Installation Instructions
4 Cyl. Direct Port Nitrous System (82030)
Thank you for choosing ZEX. If at any time you have questions regarding this or any of our products, please
call our ZEXTEK support line at 1-888-817-1008.
Read this installation manual completely before attempting to install your nitrous system. Failure to do so may
result in damage to your engine or vehicle and/or physical harm to yourself. ZEX is not responsible for damage
or injuries caused by improper use of this nitrous kit.
ZEX144
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Summary of Contents for ZEX 82030
- Page 1 Installation Instructions 4 Cyl. Direct Port Nitrous System (82030) Thank you for choosing ZEX. If at any time you have questions regarding this or any of our products, please call our ZEXTEK support line at 1-888-817-1008. Read this installation manual completely before attempting to install your nitrous system. Failure to do so may result in damage to your engine or vehicle and/or physical harm to yourself.
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Page 2: Kit Parts List
Kit Parts List DESCRIPTION QTY. DESCRIPTION QTY. Nitrous Solenoid .038 N20/ Fuel Jet Fuel Solenoid .043 N20/ Fuel Jet 7.5" Hose, -3AN, red, .040 ID .046 N20/ Fuel Jet 7.5" Hose, -3AN, purple, .086 ID .054 N20/ Fuel Jet 24" Hose, -3AN, red, .086 ID .056 N20/ Fuel Jet 24"... -
Page 3: Quick Start Reference Guide
Quick Start Reference Guide How the ZEX 4 Cyl. Direct Port Nitrous System works: The ZEX 82030 nitrous system begins with a connection to a supply cylinder containing pressurized liquid nitrous oxide and a connection to the engine’s... - Page 4 Because the real limit of how much power you make with the ZEX™ Nitrous Kit is your car's fuel system, you need to tune up to that limit. Start with the lowest power level nitrous jet and corresponding fuel metering jet.
- Page 5 Metering jets installed in the nitrous injectors and distribution blocks control these power levels. To change the power output, all you need to do is install the appropriate set of jets. The ZEX direct port system uses a unique dual stage jetting system. There is a jet in the distribution block that adjusts the power levels and a second jet in each of the nitrous nozzles that allows the tuner to further trim nitrous and fuel for individual cylinders.
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Page 6: Installation Instructions
Doing so will prevent your car from filling with a cloud of nitrous oxide should the safety pressure relief cap rupture. 2. Index the pickup tube with bottle position. (Refer to fig. 1, 2, and 3). ZEX™ nitrous bottles are designed with the bottom of the siphon tube at the bottom of the bottle towards the outlet. - Page 7 Step 4: Install Injectors and Delivery Lines 1. Remove the intake manifold. Note: It is Fig. 4 recommended that you purchase a new intake manifold gasket for reassembly. 2. Using a 11/32 dia. drill bit, drill each intake runner where you would like to position the nitrous nozzles. 3.
- Page 8 11. Attach the 24 in. –3 AN hose, with the red ends, to the fuel solenoid outlet. Attach the other end of this line to the fuel distribution block’s jet fitting. Attach the 24 in. –3 AN hose, with the purple ends, to the nitrous solenoid outlet.
- Page 9 Step 8: Enjoy! After everything has been checked over and properly set-up, turn on the nitrous bottle and enjoy your ZEX Nitrous System. ZEX #82030 Nitrous System Tune-Up Specs...
- Page 10 For engines with 10.75-1 compression ratio or greater, using nitrous system settings higher than 100hp, high octane racing fuel is required for safe operation of your ZEX Direct Port Nitrous System. Nitrous system fuel pressure must be at least 40psi...
- Page 11 50hp, high-octane racing fuel is required for safe operation of your ZEX Direct Port Nitrous System. Nitrous system fuel pressure must be at least 40psi at the inlet of the fuel solenoid. Base fuel pressures higher than 45psi may require a slight distribution block fuel jet or nozzle fuel jet adjustment to achieve optimum nitrous to fuel ratios.
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