[Diy_efi] CX 500 EFI?

[Ernest Buckler]

I'm following this very closely, thanks for all the input.  Just a reminder 
as to the reason for doing this at all: Factory no longer supports these 
bikes, ECU and sensors remaining in stock are hugely expensive, and last I 
heard the ECU was not programmable or even "knowable" since Honda refuses to 
release the code.
Ernest

<clip>
 whereas I would think it would
> be far easier to look at surge tank pressure vs. alpha
> vs. engine speed when dealing with an exhaust-driven
> turbo.  You could certainly get a LOT more complicated
> with the model and measurements if you wanted to, but
> I think that would be the bare minimum to properly
> fuel and spark an exhaust-driven turbo on a
> four-stroke ICE (or most other fossil fuel-powered
> engines too).  I believe the CX500T uses a straight
> "mechanical advance" (no alpha used, just engine
> speed) with a retard based on surge tank pressure.
> The 650, since it integrates ignition with the rest of
> the ECU, most likely uses the "bare minimum" strategy
> I noted above.  It would certainly be POSSIBLE to make
> a simpler system for spark timing than my "bare
> minimum", but I can almost insure that the results
> would be inferior when compared to the stock systems
> in both bikes, thus being a big negative when
> considering use as a stock replacement ECU on these
> bikes in particular.
>
> | Kawasaki Zephyr 615 (Daphne)       Kawasaki Zephyr 550 (Velma)|
> | "It was like an emergency ward after a great catastrophe; it  |
> |   didn't matter what race or class the victims belonged to.   |
> |  They were all given the same miracle drug, which was coffee. |
> |   The catastrophe in this case, of course, was that the sun   |
> |     had come up again."                    -Kurt Vonnegut     |
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>
>
>
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