[Diy_efi] Hot-film MAF sensor of about 3" OD?

[Steven P. Donegan]

1998 LS1 Camaro and 1997 and later Corvettes have a sensor that is close
to what you are looking for.

> In working with one of the old 6801-based NipponDenso
> ECUs, I'd like to get rid of the vane-type AFM (aka
> the "flapper"); seems like the easiest way to do that
> would be to install a MAF sensor in its place, and
> adding a simple analog circuit so the MAF output would
> follow the response curve of the original AFM.
>
> Can anyone recommend an uni-directional hot-film MAF
> that is somewhere in the neighborhood of 3" (~80 mm)
> OD for the flanges?  If I know what vehicles came with
> something of that nature, I could go picking through
> junkyards for my prototype of an improved box.
>
> Anyone who has MPU experience is welcome to join the
> convo here; I am also wanting to create a USB/serial
> interface with the ECU that will allow flash
> remapping, real-time sensor feeds (with data-logging
> capability with a laptop), and ideally, a
> "emulator"-style real-time remapping facility.
> However, it looks like the 6801 does not have enough
> I/O or clock speed to support that, and rewriting the
> runtime code for a different, newer processor,
> especially if there are events dictated by counting
> MPU clock cycles, is going to prove a challenge not
> worth sorting.  However, I can at least force the 6801
> to read an outboard EPROM (through masking, I
> believe), so I can remap via "burning" EPROMs and
> installing them on the board.  Getting rid of the
> flapper is also a primary objective...
>
> | Kawasaki Zephyr 615 (Daphne)       Kawasaki Zephyr 550 (Velma)|
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> |  They were all given the same miracle drug, which was coffee. |
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>
>
>
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