[Juan Pablo]

Hi guys, from Argentina. We are finishing an RV-8 here, with a new Lycoming YIO-360 M1B. Do you know which fuel pressure values are normal for this engine? Range from maximum to minimal values? I have the mechanical driven pump in the engine and an aux boost high pressure pump.
Thanks

 

[chaskuss]

Hi guys, from Argentina. We are finishing an RV-8 here, with a new Lycoming YIO-360 M1B. Do you know which fuel pressure values are normal for this engine? Range from maximum to minimal values? I have the mechanical driven pump in the engine and an aux boost high pressure pump.
Thanks

Juan,
Nominal fuel pressure is 25 psi for fuel injected Lycomings. For the acceptable range, I believe you can find your answer here.

http://www.vansairforce.com/community/showpost.php?p=86440&postcount=4

Charlie Kuss

 

[Bavafa]

I was told that it can run OK with as little as 9 PSI but I have set my limits to 15 minimum and with the mechanical pump it runs right at 25 PSI all the time.