DIY_EFI Digest V5 #879

[Steve.Flanagan at VerizonWireless.com]

The basic redundancy on airplanes (private planes) is two spark plugs per
cylinder and two magnetos.  If one magneto fails, the other side will keep
the plane running. 

There is no redundancy for the fuel system.

Can't make every single point of failure redundant on a auto, otherwise we
would have to carry two of the following:

Batteries
Alternators
Fuel pumps
ECUs
Fan belts
Transmissions
etc

Sometimes you just have to take some risks, and carry a cell phone.
   

-----Original Message-----
From: dom [mailto:dom at criticalpath.com]
Sent: Thursday, November 15, 2001 5:43 PM
To: diy_efi at diy-efi.org
Subject: RE: DIY_EFI Digest V5 #879


Running Pikes Peak?

Getting stranded on the side of the road is a bummer.
Getting stuck miles from civilization is a pain.
Engine failure miles above civilization can really ruin you day.

I don't know much about planes but I have heard of people having a backup,
fully mechanical fuel and ignition system. Just curious what you plans are
and your comfort level flying with a system that hasn't been thoroughly
tested.
-Dom


> -----Original Message-----
> From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
> Behalf Of Ron Schroeder
> Sent: Thursday, November 15, 2001 9:12 AM
> To: diy_efi at diy-efi.org
> Subject: Re: DIY_EFI Digest V5 #879
>
>
> Thanks for the reply Bruce (and your off-list one too).
> This means that I CAN use the NA MAP (MPX4115AP) with 2 pounds of boost on
> my engine.  I want to run more boost at higher altitudes (about 5
> pounds at
> 10,000ft.) to keep sea-level performance.
>
> Thanks,
> Ron
>
> At 08:10 AM 11/14/01 -0500, you wrote:
> >My error on the part numbers - the MPX4100 is *almost* the same thing as
> >the MPX4115, but an older part with a slightly different range,
> and it is
> >harder to acquire.
> >
> >The MAP sensors, full part numbers, are MPX4115AP (115 KPa) and
> MPX4250AP
> >(250 KPa) - the "A" means absolute pressure and the "P" means a
> barbed port.
> >
> >Sorry for the MAP number confusion - my typing fingers are not
> the best at
> >times.
> >
> >- Bruce
>
>
> Ron Schroeder
> WD8CDH
> E. E. S.
> wd8cdh at bnl.gov
> rjs at bnl.gov
> ron at 112motors.com
> 631 344-4561 Day
> 631 286-5677 Nite
>
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