DIY_EFI Digest Wednesday, September 22 1999 Volume 04 : Number 539 In this issue: OEM car ECU on motorcycle scratch EFI EFI systems Accel DFI Re: DIS info See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Wed, 22 Sep 1999 02:58:33 -0700 (PDT) From: Tristan Dresch Subject: OEM car ECU on motorcycle Hello all, I have tried to read as much as I could find from the archives and the library but I still don't know... Can I pull an entire EFI system with the ECU and adapt it too my 600cc motorcycle engine? It seems that so much can be done but I don't know my head from my arse when it concerns electronics and computers. If this can be done, what is the best way to do this? I was thinking of just going to a wrecking yard and pulling the entire system off another 4 cylinder car. The manufacture doesn't matter I just want maximum performance, thank you in advance for any help. Cris ------------------------------ Date: Wed, 22 Sep 1999 07:54:34 -0500 From: steve ravet Subject: scratch EFI > Warning long post: > I have been lurking on the EFI forum for a while and was hoping if you guys would help me. > I am an race engine builder of old and have worked on everything from Topfuel and blown > alcohol rails to Pro gas, and realize from my lurking that I'm clueless to this electronic > stuff. For once I feel pretty much lost in a field I usually feel comfortable in. > I'm hoping you can help me with a project I'm trying to build. What I have are two engine > (2100cc VW, and 190 C.I.. Corvair) both converted for aircraft use. I'm using a Ellison > throttle body type injection system designed for aircraft use and expensive but good. I > want to build a fuel injection system that's simply, light, reliable, and inexpensive that > I could build for each one of these engines. > But I don't know where to start I see all this MAF, VAF, DFI, PWM stuff and I'm again > lost. I would like some help with this and wondered if you guys would be willing to help > me or point me in the direction of someone that could or a good book or place to start. > > I have collected a few web sites on FI and wondered if anyone of you might send me your > library of sites so I can start this process. Digital seems the lightest and least complex > from today's technology, any thoughts? > > Any and all help will be greatly appreciated! Hi David, have you looked around on the diy_efi WWW page? There are definitions of those acronyms there, plus an archive that goes back to the very beginning that you can search. Plus links to other sites, lists of books, SAE papers, etc. There's some learning curve, but it won't be long before you're throwing acronyms around with the best. Can you turn off sending HTML mail in your mail program? That's where the stuff below comes from, and it just takes up space in the archive. - --steve > > David L. Hiatt > Auburn, Washington > 98092 > > - ------=_NextPart_000_0044_01BF0478.76918C60 > Content-Type: text/html; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > > > http-equiv=3DContent-Type> > > > > >

Warning long = > post:

- -- Steve Ravet steve.ravet@xxx.com Advanced Risc Machines, Inc. www.arm.com ------------------------------ Date: Wed, 22 Sep 1999 10:33:09 -0400 From: Mike Rolica Subject: EFI systems Right now I'm running a 165 ECM APYU chip on a mod L98. Cam is 271 adv. 218@ 50 112 lsa and 520 lift. Head are al. AFR 190cc. I'm wondering if there is any gain (i.e. hp/mpg etc) going to an after market system i.e. electromotive accell or even switching to speed density system. Or if there is something custom that can be built. Mike Rolica EXT. 260 :-) ------------------------------ Date: Wed, 22 Sep 1999 08:56:57 -0600 From: "Clint Svensrud" Subject: Accel DFI Hi I am new to this list, I go by the name Clint . I have made a payment on an Accel DFI for my 81 Datsun 2.8L turbo intercoolered straight six . I have a diploma in Mechanical Engineering Tech, and have done instrumention and controls, as well as Visual Basic Programming . I would like to find out everything I need to program the DFI system . My main question is how do you intially detemine the Pulse WIdth at different load points . I am also intersted in making a circuit for a Exhaust Gas Temp digital display, I then would like to switch this display between Air Temp, and Oil temp . A 'J' type themocouple will read that high, and there is already a thermistor in the oil pan, I would need to put another after the intercooler . I understand op amps and timers but I am having trouble putting the circuit together, have limited experience designing my own circuits . I am also a mechanic in the Army Reserves so any mechanical question feel free to ask, hopefully I wil be able to contribute to your list I am a little underqualified electronically . ------------------------------ Date: Wed, 22 Sep 1999 12:16:45 -0400 From: Chris Conlon Subject: Re: DIS info Thank you to everyone who suggested intake manifold fillers. It turns out McMaster-Carr has the Devcon stuff so I'm getting a few pounds of the aluminum putty from them, and playing with some of the other solutions as well. >From: "Scott, A. Pearson" > > I would like to build a system of distributorless igniton mostly using >readily available OEM parts (I'm a broke college student) for my 76 >Cadillac 500 that I am in the process of installing in my truck. I read >(but did not understand) exactly how Peter Gargano fired (is that the >right word?) the Honda CBR coils with the MJ10012 transisitors. Also how >would I go about designing a circut using these transistors and the >optical sensor to fire a coil pack on my big Cadillac motor? It may not help too much but at least it's free: Go to the Motorola web site (www.mot-sps.com) and grab the datasheet for the MC3334 . It's a chip that handles most of a non-DIS ignition, but a careful reading will give some good info about ignition systems. Actually a guy I know is using 4 of these chips as part of a diy DIS system, but I don't think it qualifies as being built from readily available OEM or junkyard parts. Actually it looks like http://www.mot-sps.com/books/sg96/pdf/automotiverev15s.pdf is an old summary of various Moto automotive bits. They also list the MC33093, MC33094 and MC79076 as other ignition related parts, but I haven't looked at the datasheets yet. Generally, tho, I find that datasheets are often filled with juicy useful tidbits from someone who already did your research for you. ;) Hope this helps, Chris C. ------------------------------ End of DIY_EFI Digest V4 #539 ***************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. A non-digest (direct mail) version of this list is also available; to subscribe to that instead, replace "diy_efi-digest" in the command above with "diy_efi".