On my next annual, I plan to replace the old VANS stock fuel pump and filter with the Andair unit on my IO540. This is for ease of access and servicing.
I have already purchased the PX375 since my fuel lines are 3/8" noting that it says it is suitable for the IO540. However, looking at the spec sheet, it says that it is "designed" for the IO360 series and that the output is 16gph @ 27-30psi. Hmmmm ......
Using the 125% rule, I require 26gph. Looking at the spec further, it states the open flow is 55-60gph @ 5psi. Interpolation gives me a fuel flow of something just over 30gph at the minimum pressure of 14psi. Further, at the actual max fuel flow of 21gph, I should get about 18psi.
I have asked the question of Andair but got no reply. Is the PX375 suitable or should I have got the PX500 and used adaptors to fit the pipes?
I have already purchased the PX375 since my fuel lines are 3/8" noting that it says it is suitable for the IO540. However, looking at the spec sheet, it says that it is "designed" for the IO360 series and that the output is 16gph @ 27-30psi. Hmmmm ......
Using the 125% rule, I require 26gph. Looking at the spec further, it states the open flow is 55-60gph @ 5psi. Interpolation gives me a fuel flow of something just over 30gph at the minimum pressure of 14psi. Further, at the actual max fuel flow of 21gph, I should get about 18psi.
I have asked the question of Andair but got no reply. Is the PX375 suitable or should I have got the PX500 and used adaptors to fit the pipes?
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