The Ford Barn

Ronnieroadster · 02-25-2015, 09:35 PM

The post includes heating ? which if your only setting the initial at 4 degrees that low setting will cause heating. Your initial timing for a well built flathead should be at least 10 degrees initial and possibly as much as 12 degrees. If you the initial is set to low when you try to rev the engine it will have a bog and then it will rev this is caused by late timing. The total advance for a blower motor should be no more than 20 degrees. And as others have pointed out you want the total advance in as soon as possible I like to see it all in around 2000 RPM. Mallory's springs are usually to heavy to allow the advance to come in at a low enough RPM point to allow the flathead to run correctly
You may ask how do I know all this its from what I learned driving the many highly modified flatheads I own and have built for others over the last 40 years. Example the blown flathead in my Land Speed Race car has a total of 20 degrees so far on gasoline in the mile the speed is over 174 MPH.

02-25-2015, 09:35 PM	#22
Ronnieroadster Senior Member Join Date: Dec 2010 Location: East Coast in CT Posts: 1,778	Re: Timing = heating? The post includes heating ? which if your only setting the initial at 4 degrees that low setting will cause heating. Your initial timing for a well built flathead should be at least 10 degrees initial and possibly as much as 12 degrees. If you the initial is set to low when you try to rev the engine it will have a bog and then it will rev this is caused by late timing. The total advance for a blower motor should be no more than 20 degrees. And as others have pointed out you want the total advance in as soon as possible I like to see it all in around 2000 RPM. Mallory's springs are usually to heavy to allow the advance to come in at a low enough RPM point to allow the flathead to run correctly You may ask how do I know all this its from what I learned driving the many highly modified flatheads I own and have built for others over the last 40 years. Example the blown flathead in my Land Speed Race car has a total of 20 degrees so far on gasoline in the mile the speed is over 174 MPH.