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Infiniti G35 Track Upgrade: Nitrous Injection System From "Tricked Out" episode DTRK-408

(Continued from page 1)

Begin Nitrous Injection System Install

To achieve maximum performance, Andrew begins the project by installing a set of drag radial tires. Once that's complete, he starts work on the meat of the project -- installing the nitrous injection system which will increase horsepower as needed on the track.

Materials and tools for this phase of the project:

150-horsepower nitrous kit
set of drag radial tires
drill with bits
standard shop tools

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	Intake pipe, removed
	Intake pipe with injector installed
	Injector jets
	Solenoids hooked up
	Preassembled components
	Throttle body

Steps:

• Every car is different, but regardless of the car you're working on, you'll still have to go through the firewall to run the switch wiring into the car.

• Clear out the cowl, and remove any plastic coverings that are in the way. Andrew removed the hood from the project car for better accessibility.

• Find a good spot in the intake pipe to mount the injection nozzle. It has to be approximately two to six inches away from the throttle body and in a good position so that it has clearance for the lines to run. In our project car, that ideal location is on the underside of the pipe.

• In order to mount the inject nozzle, the pipe will have to be removed from the car. To do this, Andrew loosens the worm clamps on either end. The pipe pops out, and Andrew removes the crank case ventilation line.

• Before installing anything back into the car, there's some prep work to be done at the workbench. Drill a 9/16" hole into the intake pipe at the mark.

• Apply a bit of silicone sealant to the fitting, and screw that into the hole. The sealant will help prevent leaks.

• Apply some sealant to the combined fuel-and-nitrous nozzle. When inserting it into the intake pipe make sure the opening on the end is facing the throttle body of the car.

• If you didn't get the opening right the first time, just loosen the nut nearby and move the fitting over until the opening is facing the throttle body.

• Now Andrew moves on to the jets, which control the flow of fuel and nitrous into the system. The nitrous kit comes with several different sizes, which are all labeled with a number. The bigger the number, the bigger the opening, which allows more power into the system.

• The kit also comes with a recommendation chart. For the project car, a size-41 jet is recommended for the nitrous side, and a size-24 is recommended for the fuel side. These recommendations should give a 75-horsepower shot. If all the tests go well, Andrew might move up to the next level of jets recommended on the chart and aim for a 100-horsepower shot.

• Use a dab of silicone sealant on the threads of the jets to avoid leaks.

• Keep in mind, 20-horsepower per cylinder is the most you can reliably run on a stock engine. If you want to go any higher than that you might want to think about rebuilding your engine with reinforced racing parts.
  
  
  

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  RELATED PROJECTS: Mopar Turbo Upgrade: Air-Box Removal Mopar Turbo-Upgrade: Performance-Control Module Mopar Turbo-Upgrade: Fuel Injectors, Pt. 1 Mopar Turbo-Upgrade: Fuel Injectors, Pt. 2 Intercooler Upgrade: Introduction and Prep Work Intercooler Upgrade: Installing the New Intercooler CO2 Intercooler-Sprayer: Trunk-Mounting the Tank CO2 Intercooler-Sprayer: Mounting the Solenoid and Sprayer CO2 Intercooler-Sprayer: Switch Installation CO2 Intercooler-Sprayer: Interior Switches and System Check

  
  

  ALSO IN THIS EPISODE:
  	Infiniti G35 Track Upgrade: Nitrous Injection System