[Diy_efi] RE: Timing and dyno pulls

[Adam Wade]

--- "M. Claywell" <clay0052 at umn.edu> wrote:

> there is a much larger percent difference in the
> temp difference for the coolant to air than
> comapared to the jacket to coolant. See what I am
> saying?

What you're forgetting about is the much much higher
rate of heat transfer between metal and coolant over
that between coolant and air.  I could probably dig
deep and get some exact figures, but ultimately
there's a point of diminshing returns, and a
break-even point.  It's not quite the easy equation
you state it is above, I don't think.

> Convective heat transfer is going be the limiting
> factor for heat transfer from the coolant to the
> air, or the cyl. head, etc to the coolant. Did you
> mean convection instead of conduction??

Yes, thanks for putting that out there for me.

=====
| 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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