what the intake sees for pressure might
very well mimic air altitude changes.......
----- Original Message -----
From: "Jim Webb" <jimwebb@nutsracing.com>
To: "3liter" <saltfever@comcast.net>; "Land-Speed"
<land-speed@autox.team.net>
Sent: Tuesday, July 27, 2004 8:51 PM
Subject: RE: LM-1 Input
> Elon,
>
> I hope you are not expecting an altitude change at WFO??? I hope I never
> that!
> LOL
>
> Jim Webb
>
> -----Original Message-----
> From: owner-land-speed@autox.team.net
> [mailto:owner-land-speed@autox.team.net]On Behalf Of 3liter
> Sent: Tuesday, July 27, 2004 7:14 PM
> To: land-speed submit
> Subject: LM-1 Input
>
>
> Pertaining to Mechanical F.I. or Carburetors, "not" EFI:
>
>
>
> The LM-1 DAQ system will allow 4 inputs (0-5v) in addition to RPM. It has
> been suggested on this list, a good use for one of them would be a
throttle
> position sensor (TPS). Since I'm not sure of the milli volt output of a
TPS,
> how to calibrate it, or even aware of the myriad of models out there, I
was
> thinking of another option instead of the TPS. What would be wrong with a
> Manifold Absolute Pressure (MAP) sensor? It would be a heck of a lot
easier
> to install. (No linkage to worry about, and just a simple tap into the
> manifold). WFO would be equally as obvious as a TPS. It may even provide
> more meaningful data since it would reflect altitude changes (as well as
> barometric changes during the day). A TPS does none of that. Since there
> are precious few inputs and you needed to select one or the other why
would
> a TPS be better than a MAP? -Elon
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