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[Datsun 1200 encyclopedia]

Spark Curve Comparison

From Datsun 1200 Club

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Categories: Distributor | Ignition Modifications

Spark Curve comparison. Larger enginees can generally take more advance. But different head designs are th number 1 reason for different curves. NOTE: If your distributor is on the low side of the tolerance it can be 4 degrees retarded and still be in specification!

Overview

A12 advance Tolerance - why using stock timing setting is not enough
curve_tolerance.jpg

A12 Total advance Comparo
curve_comparo_Total_range.jpg

A12 Total advance Comparo - (blueprinted)
curve_comparo_A12_Total.jpg

Stock A12 curves - blueprinted to high side of tolerance
curve_comparo_A12.jpg

Non-emission Type
24016.jpgAlbum click to view

A12 EXHAUST SPEC D412-63 22100-H1901
curve_22100-H1901.jpg

1973 USA Manual Transmission D412-80
24013.jpgAlbum click to view

1973 USA Auto Transmission D412-89
24014.jpgAlbum click to view

Other Datsun Engines

L-series comparison
curve_comparo.jpg

P engine OHV L6 4.0-liter D608-03 22100-46500 (Patrol)
curve_22100-46500.jpg

R16 OHV D417-57 22100-14700, D417-57K 22100-14705
curve_22100-14700.jpg

R16 OHV D407-51 22100-14600, D407-51K 22100-14606
curve_22100-14600.jpg

U20 OHC D407-52 22100-25000, D407-52K 22100-25506
curve_22100-25500.jpg

L16 OHC D412-64 22100-A5502
curve_22100-A5502.jpg

R16 OHV D417-61 22100-A7701
curve_22100-A7701.jpg

L24 22100-E4601 D612-52
curve_22100-E4601.jpg

L24 22100-E8000 D614-52 2800 RPM
curve_22100-E8000.jpg 

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This page has been accessed 5,466 times. This page was last modified 04:01, 24 September 2017. Content is available under Datsun 1200 Club.