Edelbrock 1812 User Manual

Model #1812 & #1813
Rod/Jet Reference Chart
(.17272 x .11938)
(.17272 x .10668)
(.18542 x .10668)
(.17272 x .13208)
(.17272 x .14478)
(.16002 x ..09398)
(.16002 x .11938)
(.17272 x .14478)
(.17018 x .12446)
(.1778 x .09398)
(.17018 x .12446)
(.16002 x .09398)
(.18542 x .11938)
(.18542 x .10668)
(.18542 x .09398)
#1812 / #1813 Calibration Reference Chart / Primary Metering
Stock Calibration Numbers in white are the steps obtainable using jet and rod combinations
shown on the following page.
Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired
for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usually by the same amount.
Ref# Main Jet Metering Rod
1 0.113(.22606) .068 x .047 2 0.113(.22606) .068 x .042 3 0.116(.29464) .073 x .042 4 0.113(.22606) .068 x .052 5 0.113(.22606) .068 x .057 6 0.113(.22606) .065 x .037 7 0.113(.22606) .065 x .042 8 0.113(.22606) .065 x .047
9 0.116(.29464) .070 x .057 10 0.113(.22606) .065 x .057 11 0.113(.22606) .063 x .037 12 0.113(.22606) .063 x .047 13 0.116(.29464) .068 x .057 14 0.116(.29464) .067 x .049 15 0.116(.29464) .065 x .042 16 0.116(.29464) .065 x .057 17 0.113(.22606) .070 x .037 18 0.113(.22606) .070 x .042 19 0.113(.22606) .070 x .047 20 0.113(.22606) .070 x .052 21 0.113(.22606) .070 x .057 22 0.110(.2794) .067 x .049 23 0.107(.27178) .063 x .037 24 0.113(.22606) .073 x .047 25 0.113(.22606) .073 x .042 26 0.113(.22606) .073 x .037
Step 2 Find the number that is nearest your desired combination. This is your Calibration
Reference Number.
Step 3 Go to the next page. Find the Calibration Reference Number you have just selected in
Step 2. Listed will be the Main Jet and Metering Rod required to achieve the desired fuel metering for the Primaries.
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