[Diy_efi] CX 500 EFI?

[Adam Wade]

--- Ian Molton <spyro at f2s.com> wrote:

> Firslty, do you have any references on how to map an
> engine both on road or on dyno, both 2d and 3d maps

What do you mean by "references"?  Descriptions from
others?  Written instructions?  Personal experience? 
I've got a lot of #1, can probably dig up plenty of
#2, and have a pretty fair amount of #3.  What is the
question in reference to?

> Secondly, is 3D mapping worth the effort on a
> supercharged motor, where boost pressure is directly
> related (I imagine) to engine RPM?

None of the turbo bikes (manufactured by OEs) uses
anything but an exhaust-driven turbocharger, so
discussion of a belt-driven supercharger is a bit moot
in this particular thread.

Unless you have some very sophisticated models of
engine dynamics with a turbocharger, I would tend to
think that to get the best results with the least
complexity and expenditure, you'd want to make a 3D
map for ignition timing that had alpha on one axis ,
rpm on  another, and boost pressure as the third. 
With a variable wastegate and a pressure sensor in the
(air) surge tank, this should be fairly easy to both
map and utilize.

| 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     |
| M/C Fuel Inj. Hndbk. @ Amazon.com -  http://tinyurl.com/6o3ze |


 
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