WB 02 Boards- E85

[Ray Drouillard]

You can hook it up to a meter and label it any way you want.  There is an IC
available (I forgot the number) that gives you a ten LED bar graph or moving
dot scale.  A little tweaking with the voltage dividers and stuff will give
you any thing you want.  You can even use different color LEDs - like green
for lean, yellow for stoichiometric, and red for rich.

One caveat is that the slope of the line for the lean side is different from
the slope for the rich side (unless someone adjusted for that and I don't
know anything about it).


Ray Drouillard


----- Original Message -----
From: "Axel Rietschin" <Axel_Rietschin at compuserve.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, October 18, 2001 9:11 AM
Subject: Re: WB 02 Boards- E85


> > ----- Original Message -----
> > From: "Santi Udomkesmalee" <scathontiphat at hotmail.com>
> > To: <diy_efi at diy-efi.org>
> > Sent: Wednesday, October 17, 2001 9:48 PM
> > Subject: WB 02 Boards- E85
> >
> >
> > > If I got one of these boards, how would I calibrate it for use with
> > > E85(stoich: 9.85:1) instead of gasoline?
> > >
> > > -santi
> >
> > The sensor reads the output of the engine, not the input.  It'll work
> fine -
> > though the stated ratios will be wrong.  You ought to be able to get
away
> > with multiplying the stated results by (9.71/14.7).
>
> Is there a way to display a Lambda ratio instead? That would be much
simpler
> as 1.0 means stoich with any type of fuel.
>
> --Axel
>
>
> --------------------------------------------------------------------------
--
> To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the
quotes)
> in the body of a message (not the subject) to majordomo at lists.diy-efi.org
>
>

----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org