The Ford Barn - View Single Post - Help Climbing Hills

TerryH · 03-17-2014, 10:51 PM

At 50 mph, a 36% OD is almost lugging, and will certainly be quite a bit below the peak horse power point of your Model A. That high of gearing will be better suited to 60-65 mph. I have a 5.5 head on my Town Sedan, and a Mitchell 26%, and at 55 mph it will pull slight hills, but not much more.

03-17-2014, 10:51 PM	#14
TerryH Senior Member Join Date: May 2010 Location: Fountain Valley, Calif. Posts: 937	Re: Help Climbing Hills - new head? At 50 mph, a 36% OD is almost lugging, and will certainly be quite a bit below the peak horse power point of your Model A. That high of gearing will be better suited to 60-65 mph. I have a 5.5 head on my Town Sedan, and a Mitchell 26%, and at 55 mph it will pull slight hills, but not much more.