Date:         Fri, 5 Mar 2010 12:38:38 -0600
Reply-To:     Tom Hargrave <thargrav@HIWAAY.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Tom Hargrave <thargrav@HIWAAY.NET>
Subject:      Re: AIR FLOW METER
Comments: To: Kenneth Lewis <kdlewis@NORTHSTATE.NET>
In-Reply-To:  <50215.162.58.82.135.1267810743.squirrel@webmail.northstate.net>
Content-Type: text/plain; charset="US-ASCII"

Ken,

Measuring the hot wire resistance isn't that big a deal. The trick will be
to factor the incoming air temperature into the equation because this
affects cooling. You will be driving an output resistance with the results
of two curves, the hot wire resistance modified by the incoming air
temperature.

Should be an interesting project.

Thanks,
Tom Hargrave
256-656-1924

Our Web Sites:
www.kegkits.com
www.stir-plate.com
www.andyshotsauce.com


-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
Kenneth Lewis
Sent: Friday, March 05, 2010 11:39 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: AIR FLOW METER

   I am working on one. I have gotten as far as finding a Nissan MAF that
is an exact physical replacement for our AFM and is plentiful in
salvage yards. It bolts up perfectly to the 2.1L air cleaner box and
fits the large hose. I have done some preliminary electrical
measurements and things look promising.
    I have so many pokers in the fire I keep getting side tracked . such
as  my  DIY synth : http://www.musicfromouterspace.com/
stay tuned......


Ken Lewis
http://neksiwel.20m.com/

On Fri, March 5, 2010 11:17 am, pdooley wrote:
> Somebody should come up with a MAF interpolator for this vehicle.
> In case you don't know what that means, basically an electronic box is
> used
> inline in the harness which then plugs into a MAF sensor.
> MAFs have no moving parts and in theory should last longer.  They should
> also give a slight increase in power as there is no flow restriction.
> Also,
> if the interpolator is calibrated for a common MAF, well then you have a
> cheap source for air flow measurement.
>
>

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