04-04-2011, 10:39 AM
2 Props,3 Dildos,& 1 Cat
Join Date: Jun 2005
Location: Fake Virginia
Total Cats: 316
ok I joe perezed this for academic purposes.
my car restarted when hot:
idling normally I idle at say 1000 rpm.
injection is about 1.87ms and 1.6% duty cycle.
that's 1.6% of the time, the injectors are squirting.
so for 10 seconds, i'm squirting 160ms worth of fuel.
a recent log's restart shows:
about 300ms of 6ms PW (1.4% duty, 225-480rpm)
about 150ms of 10ms PW (6.4% duty, 600-750rpm)
about 1000ms of 3ms PW (1.5% duty, 600-900rpm)
multiply the starting duties by the duration and you get
4.2ms of squirt
9.6ms of squirt
15.0ms of squirt
28.8 ms of squirt to restart.
so I was wrong.
it's less than 2 seconds of idling. 28.8ms/1.6%=1800ms
(my car takes about half a second to fire and another second for after start enrichments)
keep in mind also the engine speed is lower during startup so you inject fuel less often.
if my maths are off, someone correct them.