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Page 5 of 21©2002 Edelbrock Corporation
Rev. 10/02
Brochure No. 63-0144
Catalog #70406
1.2 Jet Map Information
Edelbrock engineering has conducted dyno testing with the Edelbrock Mercury Marauder Performer EFI system to ensure the
horsepower increase the nitrous system is as intended. On a typically stock 4.6L engine, you can expect the following
approximate power gain:
Nitrous / Jetting Approx. HP Gains
32/30 (Both Nitrous) 70
The dyno tests were conducted at Edelbrock using a stock 4.6L DOHC engine. These tests were conducted with 950 psi nitrous
bottle pressure.
1.3 Engine Operation Considerations
When used correctly, nitrous oxide safely elevates cylinder pressures and temperatures while increasing combustion rate. These
characteristics make the engine more sensitive to detonation. To ensure proper performance, engine and drive line life, the
following tips are suggested:
System Jetting
Never exceed the recommended jetting!!! Excessive jetting will result in severe engine damage.
Fuel Quality
Because Nitrous oxide is an oxidizer, fuel selection is critical. Both octane and fuel consistency affect fuel burn rate. The oxidizer
quality of nitrous oxide will accelerate the burn rate, so we recommend a high quality of gasoline. We also recommend you use
the same grade of gasoline every time you use your nitrous oxide system. This will help maintain the same fuel burn rate every
time.
Ignition Components
Most aftermarket performance chips increase the vehicle’s ignition timing, which can cause detonation with the use of nitrous
oxide. Please consult with your chip manufacturer on information regarding the compatibility of your chip with nitrous oxide
use.
If your vehicle is equipped with platinum-type spark plugs, we highly recommend they be removed and replaced with the
equivalent standard-type spark plugs.
Engine System Upgrades
With all performance modifications, complementary system upgrades will always serve to elevate the consistency and longevity
of an engine, especially when using nitrous oxide as a power adder. Modifications such as ignition upgrades, free-flowing
exhaust, camshafts, cylinder heads, manifolds, fuel controls and fuel pumps can all add to the performance of a nitrous oxide
injected engine.