Dyno tests, Crawford Cylinder Head

These dyno tests were conducted using the same short block that we used on Charlie Yapps Cyclone Cylinder head tests. Information on this short block is available under the Cyclone develpoment section of this web page. We used this touring type short block to enable us to see the power developed by the cylinder head alone.

Dyno test #3


After testing carburetor jetting, timing selection, we ran Dyno test #3.
This test was with the FS electronic distributor set @ 29 degrees total ignition timing.
Dual Stromberg carburetors, 45 main jets, 65 power valves.
Shop 4-1 header, 1 1/2" diameter x 40" primary tubes, 2 1/2" collector
NGK B6ES spark plugs, .032" gap
Intake lash .015" hot
Air fuel ratio 12.7-1



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Dyno test #4


This test was with the FS electronic distributor set @ 29 degrees total ignition timing.
Dual Stromberg carburetors, 45 main jets, 65 power valves.
Red's 4-1 header, 1 1/2" diameter x 26" primary tubes, 2 1/2" collector
NGK B6ES spark plugs, .032" gap
Intake lash .012" hot
Air fuel ratio 12.7-1


This test resulted in 124 corrected Horsepower @ 3200 RPM & over 200 Ft. Lbs. of torque @ 2000-2500 RPM!


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Dyno test 2014 Bonneville Engine


The 2014 & 2015 Bonneville races were rained out. As a result we ran at the November 2015 EL MIRAGE, CALIFORNIA event. This test was our Model A Ford racing engine with the Crawford head as run at the 2015 EL MIRAGE, CALIFORNIA speed event in our Vintage Gasoline Altered Coup.. This engine is full race, 10.8 compression, custom grind camshaft, billet Crower rods, Dual Weber DCOE 40 MM carburetors & a custom ram tube intake manifold.
Air fuel ratio 12-1


This test resulted in 262 corrected Horsepower & over 281 Ft. Lbs. of torque @ 4500 RPM!
This engine powered our 1929 Model A Ford coup to the fastest speed ever for a Model A Ford Powered Model A Ford Coup at El Mirage !!!!





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