water injection
Todd King
Todd_King at ccm2.jf.intel.com
Fri Sep 5 17:04:34 GMT 1997
<<<
Isn't one of the effects of water injection to absorb the heat as it
changes form water to steam, thereby providing some sought of
intercooling effect in the combustion chamber anyway, so even if it is
not that cold, it will still have an intercooling effect.... >>>
Absolutely; in fact this is where the benefits come from. The heat of
vaporization is huge for water; it absorbs alot of heat to transition
to steam. Also similar to why N2O works well. It takes alot of heat
input to seperate the O from the N2 which causes an intercooled
effect, as well as freeing up extra O for combustion of more fuel.
Any theories on why batch fire doesn't pop at wot vs sequential
which often does on the turbo Buicks? It's really confusing. I've
directly measured inj duty cycles at wot in SFI mode and they ran all
the way up to > 99.5% for 720 deg rotation. But a "pop" often implies
a lean condition. How could multiport exceed the above SFI fueling
with all 6 inj on at ~ 100% dc? It can't- so what the heck can be
going on here?
Todd- currently bewildered... todd_king at ccm2.jf.intel.com
More information about the Diy_efi
mailing list