Larger Injectors: Higher horsepower from larger turbos or Nitrous
Oxide injection puts additional demands on the fuel system. The
additional airflow means that a greater quantity of fuel will be
needed for a proper air/fuel ratio. As boost is increased (or
nitrous is introduced to the intake charge), the EPROM has the
ability to make minor adjustments for the increased fuel needs via
the stock 370cc injectors (259cc for non-turbo).
However, when it reaches a wide open throttle condition, the stock
injectors cannot deliver enough fuel to efficiently and safely
manage flow. By going to larger injectors, horsepower potentials
can be achieved and proper air/fuel ratios can be maintained,
avoiding a dangerous lean condition. The engine ECU must be
reprogrammed to make use of the larger injectors.
These are Nissan racing injectors - we highly recommend against
using modified or drilled injectors. Call with your specific needs
for proper application. Use with upgrade injector gasket kit
(STILLEN Part #406200).
- 90-96 300ZX Twin-Turbo, 555cc Injectors
- 90-96 300ZX Non-Turbo, 370cc Injectors