In article >,
Bill Putney > wrote:

> I beg to differ. Without recirc, the fuel is in the engine area a while
> soaking up heat. With recirc, cool fuel is always coming in at
> relatively high volume, and the warmed fuel is going back to the tank,
> and any global heating of the tank by that is effectively removed by
> ambient temps surrounding the tank (plus the volume of fuel there is
> (relatively speaking) almost an infinite heat sink. Sre - you shut the
> engine off, and it's going to heat up, but if it starts out a few
> degrees cooler, chances are much better that it will never reach the
> vapor stage.

Doesn't work that way.