The Ford Barn

JSeery · 10-20-2019, 08:05 PM

Bubba, I have seen those before and really don't understand them. They do not match what Ford published in the maintenance manual advance tables and it doesn't match with any of the modern dyno information I've seen. Any insight?

As an example, in a late 50 and 51 advance table the numbers were:

200 rpm 0 degrees
500 rpm 1 degree
1000 rpm 6.25 degrees
1500 rpm 10 degrees
2000 rpm 11.25 degrees

Those are the max values in distributor degrees, so with 2 initial it would be:

200 rpm 2
500 rpm 4
1000 rpm 14.5
1500 rpm 22
2000 rpm 24.5

Which seems a lot more reasonable to me.

10-20-2019, 08:05 PM	#17
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: advance curves Bubba, I have seen those before and really don't understand them. They do not match what Ford published in the maintenance manual advance tables and it doesn't match with any of the modern dyno information I've seen. Any insight? As an example, in a late 50 and 51 advance table the numbers were: 200 rpm 0 degrees 500 rpm 1 degree 1000 rpm 6.25 degrees 1500 rpm 10 degrees 2000 rpm 11.25 degrees Those are the max values in distributor degrees, so with 2 initial it would be: 200 rpm 2 500 rpm 4 1000 rpm 14.5 1500 rpm 22 2000 rpm 24.5 Which seems a lot more reasonable to me. Last edited by JSeery; 10-20-2019 at 08:13 PM.