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2001 Edelbrock Corporation
Brochure No. 63-0020
©
Rev. 10/01
Page 6 of 27
1.2 Jet Map Information
Edelbrock engineering has conducted dyno testing with the Edelbrock LT1 Performer EFI system to ensure
the horsepower increase the nitrous system is as intended. On a typically stock LT1 engine, you can
expect the following approximate power gain:
Nitrous/Fuel Jetting
Approx. HP Gains Final Air/Fuel Ratio
.068 .042 150 13.5/1
The dyno tests were conducted at Edelbrock using a stock LT1 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 can all
add to the performance of a nitrous oxide injected engine.