Question about WOT table in $8D bin

[Edmond]

At 5600 RPM  I got a -6.2 setting in the WOT table.

I guess that would be a  12.27

Timing is at 15.6 at that RPM.

It's not like my motor will ever see that RPM anyway. The highest it ever
goes in the quarter in 3rd is 5000....

That's kinda rich huh ?


----- Original Message -----
From: <timsiford at hushmail.com>
To: <gmecm at diy-efi.org>
Sent: Wednesday, November 15, 2000 7:18 AM
Subject: Re: Question about WOT table in $8D bin


> At 5600rpms and 80deg C I am running ....
>
> 8.2   Modification to the WOT Change to AFR vs RPMS
> 22.7 Modification to the WOT Change to AFR vs Coolant
>
> Using your formula that yields ....
> (1 - ((8.2 + 22.7)/100)) * 14.7 = 10.16
>
> Heh heh ... maybe that's why I get away with running 42deg of Timing at
> those RPMs.  The AFR and the timing SOUNDS high but the car likes it.  I
> am not complaining since I have run 12.2 at 112mph NA with the stock 350
bottom
> end.
>
> Tim
>
> At Sun, 12 Nov 2000 17:51:35 -0800, romans at starstream.net (Romans, Mark)
> wrote:
>
> >
> >
> >Hi Edmond:  I will try and help you.
> >This info applied to 165 ecm, using 87-88 code for F&Y body.  It "may"
> >=
> >be the same for your app, if not it will
> >hopefully send you in the right direction. This info is being carefully
> >=
> >typed just like it says in my MT manual.
> >
> >"WOTR
> >This table is percent change to Air Fuel Ratio used at or near wide
> >open =
> >throttle conditions Vs. RPM.  AFR is based
> >on 14.7:1.  The values from WOTC and WOTR are summed to arrive at the
> >=
> >WOT Air Fuel Ratio.
> >
> >Approximate WOT air fuel ratios may be calculated using the method shown
> >=
> >below.
> >
> >For the selected RPM, suppose the percent change to Air Fuel Ratio from
> >=
> >the WOTR table is = -5.1 and the percent change
> >to Air Fuel Ratio from the WOTC table at the selected coolant temp is
> >=
> >= 22.7, then the approximate AFR would be:
> >
> >1 - (-5.1+22.7)/100 * 14.7 = 12.1:1 AFR"
> >
> >If you have diacom it will show you the "Commanded" AFR.  Keep in mind
> >=
> >that this is an estimate.
> >
> >I am running a commanded AFR of 12.0:1 and I am sure it is leaner than
> >=
> >that because if I drop the AFR a bit leaner the car falls down
> >and detonates, but 12.0:1 would really be too rich.
> >
> >HTH's
> >
> >Mark
> >  ----- Original Message -----
> >  From: Edmond
> >  To: gmecm at diy-efi.org
> >  Sent: Sunday, November 12, 2000 4:24 PM
> >  Subject: Re: Question about WOT table in $8D bin
> >
> >
> >  Nobody has any idea about this  ? :/
> >    ----- Original Message -----
> >    From: NRG
> >    To: gmecm at diy-efi.org
> >    Sent: Saturday, November 11, 2000 8:30 PM
> >    Subject: Question about WOT table in $8D bin
> >
> >
> >    Hey guys. I got a quick question. What does the "WOT change to =
> >Air/Fuel ratio compared to RPM" table in TunerCat for the $8D definition
> >=
> >file ? I mean it's pretty self explanatory but the numbers arent. Mine
> >=
> >has both positive and negative numbers. What is the relation between
> >=
> >these numbers and the actual ratio ?=20
> >
> >

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