[Diy_efi] RE: Diy_efi digest, Vol 1 #413 - 12 msgs

[Adam Wade]

--- Mos <mos at sydney.net> wrote:

> The point is that in intended application, unless
> you're building a burnout machine, your vehicle
> generally sees plenty of airflow through the
> radiator - something hard to duplicate with a fan.

I disagree on the difficulty with airflow via a fan. 
the dynos I worked on primarily were available with
fan packages up to being able to deliver air across
the entire frontal area of a racing motorcycle
radiator (about the same as a large V8 from the 70s)
at 70 mph actual airspeed.  Although I may be wrong on
this, I believe that should be more than sufficient
for any automotive or motorcycle application, although
it might require some extra fans of that capacity if
you had a very large intercooler.

Ultimately, the bottom line is that a dyno can only go
so far in terms of tuning a vehicle for best behavior
(whatever your paramaters for "best behavior" are) by
tweaking it in the real world.  Dynos are us trying to
make it easier for us to tune with the elast amount of work/discomfort.

=====
| Adam Wade                       1990 Kwak Zephyr 550 (Daphne) |
|   http://y42.photos.yahoo.com/bc/espresso_doppio/lst?.dir=/   |
| "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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