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Re: [FlyRotary] Re: Fuel Injector Sizing
Thanks Bulent,
Yes, nice to have it confirmed. That was my
understanding of how it should work, but after two that did not work that way
but did not cause any operational difficulty - I went on to other problems
{:>).
So I would expect to see your fuel pressure around
37 psi with either the engine stopped or WOT. Any RPM between those two
extremes should result in less than 37 psi on the gauge with the minimum
psi during high speed idle (lowest manifold pressure point).
It would appear that I need to look for a new
fuel pressure regulator.
Ed
----- Original Message -----
Sent: Saturday, January 22, 2005 11:00
PM
Subject: [FlyRotary] Re: Fuel Injector
Sizing
On 1/22/05
9:10 AM, "Ed Anderson" <eanderson@carolina.rr.com>
wrote:
You certainly
could be right about that, Rusty. My understanding was to expect the
fuel pressure to vary to compensate for the different manifold pressure.
But, there is no indication on my gauge and this is the second
pressure regulator (but, of the same make Hmmm) that I have had. It
does regulate (else my fuel pressure would be much higher) but apparently
does not compensate for manifold pressure based on what I am
hearing.
But,
as you indicated, If there is any operational problem associated with it, I
have not encountered it (or recognized it as such). It is one of the
smaller ones and it could be that it is dumping all the fuel it can at 40-43
psi and there is not sufficient return flow capacity to compensate for the
variations in manifold pressure. I suspect that if I had a turbo where
the manifold pressure varied considerably that the lack of such compensation
might be more detrimental to engine performance (and life). Just
speculation of course.
Ed A
Hi Ed, I just came from the hangar.
My FP is set at 37psi without the engine running. I noticed at 2300 rpm the FP
was around 20 psi. So it varies with the MP.
Bulent
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