DIY_EFI Digest Monday, 25 August 1997 Volume 02 : Number 288 In this issue: Re: EFI & furthermore Re: EFI (Nitrous) Re: Injector Control Coil-on-Plug Systems UEGO-sensor question See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- From: Terry Martin Date: Sun, 24 Aug 1997 22:38:24 -0700 Subject: Re: EFI & furthermore Robert Harris wrote: > > One last time - please read the FAQ's just posted. Did that, thanks. > Words have > meanings, - chemical, physical, electrical etc terms have fairly > exact meanings. Use them as they are defined - when you don't > you confuse the shit out of everyone and embarrass yourself and > needlessly throw fire onto fuel. Oh, I never embarrass myself when I learn something, and thanks again. > Thought trains, concepts etc. get > radically misunderstood when everyone is not speaking the same > language. Remember, we are not politicians, seeking to deceive, > just people trying to do what we can for our own personal needs. And mine is to learn, thank-you very much again. On the other hand, someone, say, as learned as yourself, should see past the words, and recognize the concept. Like someone trying to understand a person not speaking his native tongue. However, if you don't speak the language expressed very well either, then you will have the shit confused out of you. It's one of the benefits to everyone not speaking the same language. Any shit in you will be confused out. Once again, thank-you so much. Oh, not to beat it to death, and to be perfectly clear, you state "Words have > meanings, - chemical, physical, electrical etc terms have fairly > exact meanings." I already know that words have meanings, since I use them on a more or less non-arbitrary basis, but what does "fairly exact" mean? I understand that the english language also has context, and "fairly" is a contradiction in context with "exact". Not to be so bold as to contradict you outright, but I understand, and believe to be true, that mathematics was "invented" as the "language" of science, due to its exacting precision and unabiguity in fairly describing the various scientific doctrines. Do you propose that we should defer to mathematics so that everyone, regardless of tongue should fully and completely understand that of which we speak? Terry ------------------------------ From: "Christopher G. Moog" Date: Mon, 25 Aug 1997 02:07:50 -0400 Subject: Re: EFI (Nitrous) A70Duster@xxx.com wrote: > Nitrous Oxide is actually two Nitrogens and one Oxygen, also known as > laughing gas. > > See ya, > > Mike My mistake. It is NO2, still 33% O2 rather than 21% for a 50% power gain. ------------------------------ From: "alex nicu" Date: Sun, 24 Aug 1997 23:10:46 PDT Subject: Re: Injector Control Hi! I was study for some time the injector signal , and , in my opinion , the pulse width can't be constant . The PW increase or decrease ( aprox. between 1% to 85% ) according with throttle position and / or MAP sensor ( or airflow sensor ). If you have right and the PW it's constant , how you increase the RPM when you press the throttle ? I'm using this type of modulation ( PW ) on my project and 'till now it's OK . Alex http://home.onestep.net/nalex ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ------------------------------ From: Gary Ohst Date: Sun, 24 Aug 1997 23:00:18 -0700 Subject: Coil-on-Plug Systems List, I've never found a set of spark plug wires I like, so I am looking into using the new coil-on-plug technology that is just starting to appear on production cars and hopefully might soon become available at reasonable cost. Does anybody have information on the coil-on-plug units Ford is now using on some versions of the 1997 model year 32-valve 4.6 liter V8? How big are Ford's coil-on-plug units? Do they fit on conventional spark plugs or is it an intergrated plug/coil unit? I found a few coil-on-plug websites which are summarized below: 1) This is a company promoting a new coil-on-plug system probably for OEM buyers. http://www.sae.org/ns-search/sae97/previous/monday/sberu.htm?NS-search-set=/33fdf/aaaa003DTfdfe8d&NS-doc-offset=5& 2) Here is some stuff from Motorola's automotive page. http://mot-sps.com/automotive/ignition3.html 3) Just a few sentences on Ford's system: http://www.lincolnvehicles.com/MarkVIII/ignition.html 4) This is an aftermarket coil driver package that can handle 4 devices including a coil-on-plug system. http://www.id.net/~ati/igd4.html 5) All I cound find on what Delco is up to. Just a few sentences at the end of a general racing technology page. To my knowledge, GM has no production coil-on-plug units like Ford. http://www.delco.com/autosmart/96_spring/track.html These seem like they could be fired with the current version of EFI332 hardware. Since I am building a 4 cylinder motor, it seems like it should take no more individual driver capacity than a 4-pack wasted-spark coil for a V8. Anybody have further information or ideas? - --Gary-- ------------------------------ From: "Hans Hintermaier" Date: Mon, 25 Aug 1997 10:49:16 MET Subject: UEGO-sensor question Hello to all on the list, who knows a car which is equipped with a O2-sensor which works from 0.5>lambda>2.0 or more , and knows the the electronics to drive the sensor? Any help is welcome! Hans mailto:hiha@xxx.de Munich / Germany ------------------------------ End of DIY_EFI Digest V2 #288 ***************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. 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