Richard Gosling wrote: > Doug said: > > ...I don't think the presence or lack of EFI or electronic ignition is a key > factor....cars with computerized EFI usually have some sort of electronic > idle control that can adjust > the throttle setting to keep the idle RPM stable... > > This idle control is exactly why I excluded cars with EFI from my > generalisation about RPM dips! In fact, it may well only apply to cars with > fly-by-wire throttles. > Pointless trivia: Modern cars (starting early to mid eighties, probably earlier for some luxury marks) tend to have some sort of idle control, which may increase idle when the cooling fan/AC/lights etc. are on. This is true even on the various 'electronic carburator' systems that preceded real EFI, and doesn't require fly-by-wire throttle control.
The motor in my spit has an idle control solenoid, but I'm not sure it ever engages since I threw out all the AC stuff. > I was also tempted to exclude old American cars, on the basis that their > huge V8s would hardly notice the extra load from the lights. > I don't recall noticing any change in idle on the 462 CID Lincoln I used to own :-P. -- Email: rfm(at)redshift.com or rfm(at)portalofevil.com Home page: http://www.redshift.com/~rfm /// [EMAIL PROTECTED] mailing list /// Send admin requests to [EMAIL PROTECTED] /// or try http://www.team.net/cgi-bin/majorcool /// Archives at http://www.team.net/archive /// Send list postings to [EMAIL PROTECTED] /// Edit your replies! If they include this trailer, they will NOT be sent.
