Honda K20C1 Operating Instructions Manual page 3

Engine Operating Specifications – continued
Coolant Temperature Standard Operating
Range:
Coolant Maximum Temperature:
Coolant Minimum Temperature:
Intake charge temperature
Spark Plug Gap:
Spark Plug inspection and change interval: Inspect plugs every 1000miles.
Fuel type
Fuel Supply Pressure:
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Performance Development.
70°C (158°F) - 100°C (212°F)
Note: the coolant temperature data trace
needs to be reviewed frequently, as it is a
good indicator of the health of the cooling
system. Look for trends and cases where a
limit may have been exceeded.
105°C (221°F)
Important note : >106°C for over 1 minute
= engine pull.
50°C (122°F). Avoid any high engine load
until the engine has reached its ideal
operating temperature.
60°C (140°F). Max
Avoid any high engine load if the charge
temperature is too high.
0.7-0.8 mm (.0275"-.0315").
PN(ILZKAR8H8S) (NGK)
Note : Gap is set by the manufacturer and
must not be adjusted.
The plug should not need to be change for
the life of the engine.
See approved fuel table
310kPa-450kPa (45-65 psi)
Note : HPP direct Fuel 12-15MPa on start
up and idle
Note: it is recommended to empty the fuel
system after each race weekend or when
the car will be stored for an extended
period.