MAF & base fuel tables

[Mark Romans]

Hey Peter Fenske,  how is LV8 calculated?

The actual air flow is not used, LV8 is used with rpm to apply spark.  Less
any retard and plus WOT spark adder if applicable.

Neither of the TPIS chips that I have looked at had any mods made to the maf
tables.  The first was a level 4 for an 87 Auto vet,  the 2nd was a Level 5
for a 88 4+3 Vet.  All they did was add a % to the PE vs RPM map.

Mark
-----Original Message-----
From: W Johnson <flying.chimp at juno.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Thursday, June 24, 1999 6:33 AM
Subject: Re: MAF & base fuel tables


>Hi Bob
>
>On Wed, 23 Jun 1999 17:34:20 -0400 "Knowlden and/or Eller" <ke at clark.net>
>writes:
>>Just had another thought - the screens wouldn't make any difference.
>
>Right, the calibration would still be correct. FYI  I tested stock MAF
>w/o screens and air flow increased about 2 numbers.
>
>>something
>>called ALDL spark add which basically says that while the system is in
>>ALDL
>>mode 8 degrees (according to the memcal) will be added to the spark
>>timing.
>
>This doesn't seem to be an issue when checking spark timing with Diacom,
>but there is a power enrichment addition of some where around 4 deg.s. If
>you look at the LV8 and allow for Spark Retard and Power Enrichment the
>spark will be right where its suppose to be. The problem is, if air flow
>numbers are incorrect, LV8 is incorrect and the wrong spark timing will
>be used. (clear as mud?)
>
>Cheers,
>Wayne Johnson
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