jofarr, soddy tn http://www.csr-performance.com/=20 I have a potential safety question with using an electric pump, = unless the engine is using a magneto. The ignition system runs on battery/alternator power. If it and = the FI are run by an ECU, it too needs power. The fuel pumps need = electricity. There are other electric hungry mechanism that need power. In an alternator/battery failure (short of having dual alt and = batt) to have a water pump sucking 5 or more amps of power, this = significantly shortens the available flight time before engine stoppage. If the engine is magnitoed, when the electrons disappear and the = pump stops, all that will happen is that the engine will fry---- The = result will be the same Rich ------=_NextPart_000_0012_01C6A587.DDDB90C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Sorry, George - the "Pizeo" (more properly = spelled=20 Piezo) ignition was meant to be a joke. But, some = lawn=20 mower systems do have a small Piezo electric type ignition. This = is the=20 making use of the property of some crystals which if flexed will = generate an=20 electrical discharge. The lighter on most gas Bar B Q grills are = Piezo=20 electric. Sorry if my misspelling mislead you.

----- Original Message -----
From:=20 george=20 lendich
To: Rotary motors in = aircraft

Sent: Tuesday, July 11, 2006 = 5:53=20 PM

Subject: [FlyRotary] Re: - EWP=20 Power

Ed,

What is a Pizeo EIS?

George ( down under)

Rich, good questions, but like many of the = choices we in=20 alternative engines face, there is no yes/no, good/bad- = just=20 another risk factor with pros and cons to consider. I = believe=20 that there is some technical merit to using an electrical water pump = such as=20 reducing pumping HP losses, perhaps less weight, optimum coolant = temp=20 control, etc. . You could also factor in your water = pump=20 current load into your overall power considerations and run with a = larger=20 battery to get you your minimum alternator-out time. But, I = must admit=20 that I find the reliability and no need for attention mechanical = pump=20 preferable for myself.

Me?, I'm waiting for a pizeo = electric ignition=20 system and a mechanical fuel pump and then I can throw the=20 battery away {:>).

Ed

howe----- Original Message -----

From:=20 ARGOLDMAN@aol.com
To: Rotary motors in = aircraft=20

Sent: Tuesday, July 11, = 2006 1:02=20 AM

Subject: [FlyRotary] Re: - = EWP=20 Power

In a message dated 7/10/2006 11:43:35 AM Central Standard = Time, jesse@jessfarr.com = writes:
Have any=20 of you ewp folks looked at CSR Performance products stuff? They =
tell=20 me they have a high volume pump that fits into some good looking =
anodized aluminum housings for big block car stuff that will = pump up=20 to 70
gpm and is expected to last for 5500 hours or so; and, = they=20 have a remote
that is something like davies-craig that is = also=20 expected to last about 5500
hours and pumps around 35 to 37 = gpm.=20 They run in the $250 to $300 range,
supposedly use about 5 = or 6=20 amps; and, I would like to learn from someone
else's=20 experimentation, if possible. <g>
jofarr, soddy=20 tn

http://www.csr-performance.com/ =

I have a potential safety question with using an electric = pump,=20 unless the engine is using a magneto.

The ignition system runs on battery/alternator power. If it = and the=20 FI are run by an ECU, it too needs power. The fuel pumps need = electricity.=20 There are other electric hungry mechanism that need power.

In an alternator/battery failure (short of having dual alt = and batt)=20 to have a water pump sucking 5 or more amps of power, this = significantly=20 shortens the available flight time before engine stoppage.

If the engine is magnitoed, when the electrons disappear = and the=20 pump stops, all that will happen is that the engine will fry---- = The=20 result will be the same

=
Rich

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