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This page will help you setup Hilborn injection and Download models for DeskTop Dyno

  Setting up Hilborn Injection for the Flathead

  Setting up Fuel Injection is pretty straightforward for the Flathead.  To learn more about this subject you should log on to Jim Harvey’s Site found on the links page.

If you plan to use Fuel injection I would strongly suggest that you purchase Jim’s book on the subject. It is one of the best publications on setting up Mechanical Fuel injection. On this page I am going to simplify this by introducing charts and tables to get you in the ballpark and get your engine running.  By no means are my figures going to be the final, for that, by the book.

These figures are calculated with an BL420 old style Hilborn pump

 Displacement               Type of Jets                  Gasoline                    Alcohol               30% Nitro

 Displacement                    Type of Pill                Gasoline                   Alcohol                30% Nitro

14 ” tubes for a 7% increase in V.E.

9”   tubes for a 4% increase in V.E.

These Downloads are data files for DeskTop Dyno 2000 and DeskTop Dyno 2003. The head flow files were compiled from the book by Mike Davidson’ “The Street Flathead “ . If you Have any questions or problems with the files, please e-mail me at buzz@flatheadracing.com

Flathead Cam File

Flathead Head Flow

Stock Flathead Engine