serious horsepower gains with these Honda/Acura engines, you
need a system where significant amounts of nitrous oxide and
fuel are injected into the engine simultaneously in the
intake port-not a nozzle jammed into the snorkel tube. NOS
offers a special plate injector system for 1.8 GSR Integra
and 2.2 Honda Prelude VTEC engines that can be adjusted to
produce up to 200 extra horsepower.
This is a competition system that is
primarily designed for use on modified engines (if used on a
stock motor it should be jetted at no more than 75
horsepower). The special "Big ShoC plate (which is
manufactured using state-of-the-art EDM technology) is
installed between the factory two-piece intake manifold
along with the butterfly plate, and requires no modification
to the factory electronic fuel injection
In terms of performance, there are many, many testimonials
from satisfied NOS users detailing their experiences. For
example, the kit (along with modifications to the engine)
can propel a relatively stock looking Prelude deep into the
13-second zone in the quarter mile. One of the most popular
"engine swaps" to come along in years is dropping the V-TEC
into a Honda Civic. We've seen them run in the I I's at over
120 mph in streetable trim without the need of a blower or
turbocharger. About the most awesome performance we've seen
is Ed Bergenholtz's Front Wheel Drive, uni-body, 9-second
CRX with an NOSboosted turbo V-TEC.
Note: A (add - 15 to part number for 15 lb. bottle;
B (add -20 to part number for 20 lb.
Because of their light weight, many racers opt for
NOS carbon fiber bottles (which come with a Super
Hi-Flo valve and pressure gauge). Other important
accessories include a fuel pressure gauge, nitrous
bottle heater, and purge valve.
The effect of 200 extra horsepower is often too much
for a front wheel drive chassis to handle, so an NOS
Progressive Nitrous Controller is a valuable option.
This will allow you to administer the nitrous
smoothly, and maintain optimum traction.
Due to the high power levels and cylinder pressures
produced by the NOS "Big Shot" V-TEC system it is
imperative to use premium quality forged aluminum
racing pistons, forged steel rods and a forged (or
billet) crankshaft. Additional reinforcement of the
engine through use of special cylinder head and main
studs is recommended. Use only unleaded racing fuel.
A high output ignition (with ignition retard
feature) and free-flowing exhaust system is
essential to obtain optimum performance from this
nitrous system. Do not use aftermarket chips or
other devices that advance ignition timing, as
detonation may occur.
Use a high performance fuel pump (or multiple pumps)
that provides a substantial increase in flow and
pressure over the OEM setup. As a rule of thumb, the
system must produce a flow rate of 40-60
gallons-per-hour AT a pressure of 40-50 PSI. A
relatively stock motor can be on the lower end of
the scale, while a highly modified engine must be at
the high side. It is advisable to have the pump(s)
flowed prior to installation.