land-speed
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Re: Altitude corrections.

To: Dave Dahlgren <ddahlgren@snet.net>
Subject: Re: Altitude corrections.
From: Chris Harris <yesford@clear.net.nz>
Date: Thu, 24 Apr 2003 12:21:51 +1200
Thanks for the advice Dave, seems you just want to take the fun out of
changing burnt pistons, spun bearings and AWOL rods, LOL.
Chris H...........................NZed.


  depends on the ecu and how well it was tuned. You do not need closed loop
for an
  altitude change.If it is speed density then it will be close but will be
off
  slightly depending on compression ratio and the effects that has on pumping
  efficiency. If alpha-n with a baro sensor connected it should be spot on..
As
  long as the baro correction tables were done correctly in the first place.
EGT's
  are almost meaningless for setting the air fuel ratio BTW. If you know the
air
  fuel ratio then they will help with the timing though..If you have some sort
of
  dyno data to correlate the egt to.
  Dave

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