EXTRA EXTRA

With ‘only’ around 125 bhp to play with, Graham explores some less obvious options for squeezing a few more horsepower from a 1700 Crossflow.

Graham Bahr

Following on from the January issue’s Crossflow test here are a couple upgrades that didn’t make the article. Crossflow engines are notorious for having low oil pressure when hot. Oil pressure is dictated mainly by three things, viscosity of the oil, temperature and bearing clearances. So simply fitting a high-pressure pump may not give good oil pressure. In this case we fitted a Burton Power high-pressure pump, rated at approximately 65 psi, and during the dyno runs we saw 64 psi with the oil at 65 degrees C. Initial running of the engine was done on a standard Ford distributor still running points which was dialled in to maximise power. Prior to fitting the twin 40DCOE carbs the distributor was swapped out for a Bestek unit with an advance curve…

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Classic Ford (Digital) - 1 Issue, March 2024

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