Hi all:
I am using the beginning of Phase I to break in my (I)O320. I have researched break-in methods on this site and others, and the rule of thumb is to run the engine hard, preferably >65-75% power. My Skyview gives me a percent power number, but it is simply based on whatever I have programmed into the computer as "full power". As I understand it, using percent power is basically a proxy number for measuring the cylinder pressure that helps seat the rings; but given this proxy, how do I know what "full power" is and if it accurately reflects the cylinder pressures I am really after? The engine is an O320D1A that has been converted to Airflow Performance FI. Pistons are 10:1, and the cylinders were ported and flowed by LyCon. The engine was run-in for 2.4 hours at LyCon. Full power on the dyno was 193HP@2700RPM. So it seems I have a variety of options for determining 100% power:
a) 193HP(corrected), per dyno testing
b) the published power chart for an O320D1A
c) something else
I'd greatly appreciate anyone's insight on this. I'm still studying/learning how these engines operate, so please be patient if I've overlooked the obvious here.
Eric
I am using the beginning of Phase I to break in my (I)O320. I have researched break-in methods on this site and others, and the rule of thumb is to run the engine hard, preferably >65-75% power. My Skyview gives me a percent power number, but it is simply based on whatever I have programmed into the computer as "full power". As I understand it, using percent power is basically a proxy number for measuring the cylinder pressure that helps seat the rings; but given this proxy, how do I know what "full power" is and if it accurately reflects the cylinder pressures I am really after? The engine is an O320D1A that has been converted to Airflow Performance FI. Pistons are 10:1, and the cylinders were ported and flowed by LyCon. The engine was run-in for 2.4 hours at LyCon. Full power on the dyno was 193HP@2700RPM. So it seems I have a variety of options for determining 100% power:
a) 193HP(corrected), per dyno testing
b) the published power chart for an O320D1A
c) something else
I'd greatly appreciate anyone's insight on this. I'm still studying/learning how these engines operate, so please be patient if I've overlooked the obvious here.
Eric