DIY_EFI Digest Thursday, June 24 1999 Volume 04 : Number 375 In this issue: Re: Holley Projection 4di help Re: DIY_EFI Digest V4 #374 OBDII finally in OZ? 8051 based EFI system and ECU6/7 Re: SV: Need help with Bosch part no. See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Wed, 23 Jun 1999 14:39:58 -0600 From: "M. Jones" Subject: Re: Holley Projection 4di help "Bob Huish" wrote: Anyone else running any of the ProJections, be it analog >or digital? I use a 600 cfm (Holley's rating) 4D on my 351W -powered inboard (w/ GT-40P heads. Works great, although the 700 cfm version would have been better out of the box. I had to increase fuel pressure slightly to keep the injectors from exceeding duty cycle at higher rpm's. (The 600 uses 45 lb/hr injectors whereas the 700 uses 60 lb/hr units. Mike Jones p.s. I, too, have been switched to digest mode? ------------------------------ Date: Wed, 23 Jun 1999 16:47:54 -0400 (EDT) From: "Clive Apps Techno-Logicals 416 510 0020" Subject: Re: DIY_EFI Digest V4 #374 > > < that apperared in the Mad Max movie is a gimmick. The blower was an empty > case - carb inside.>> some of the War Planes had a system that used a clutched blower system it is possible there is enough air leakage around a roots or scroll type of blower to support normal cruising speeds also while I have your attention anyone ever installled a DFI system or similar onto a Hilborn setup I can get a good deal on a complete hilborn and the with EFI it should be able to make good power and economy for cruising too Clive ------------------------------ Date: Wed, 23 Jun 1999 22:45:23 +1000 From: Richard Wakeling Subject: OBDII finally in OZ? Hi All, Well until last week I have been linking to all Australian late VR and VS PCM/ECM ecu's until this week. I hooked up the trusty laptop to a VT (which is the latest Holden Commodore)... I think it was released in 1997? Possibly later. Anyhow, I used the usual transmission codes of MSG_ID, MSG_LTH, MSG_MODE, ... message... and checksum as well as the usual theft deterrent codes present during operation. However such codes were not discovered, nor were compatible with this type of Vehicle. The transmission code is quite long, and continuous even during ignition off time. The code seems to "double-time", when ignition is turned on. I'm not quite sure if the transmission is set to 8192 nor sure about being possible OBDII or even the normal GM protocol. Any help? This is what the transmission code looks like at 8192. (ignition turned off) A3, 11, 5C, FF, 40, 00, 00, 08, 00, 00, 4C, 08, 55, A3, 11, 5C, FF, 40, 00, 00, 08, 00, 00, 4C, 08, 55 repeats... and at it's double rate when ignition turned on. 11, 5C, FF, 40, 40, 00, 09, 00, 00, 0B, 08, 55, A3, 40, 58, FF, FF, FF, 6B, 41, 63, 00, 00, 00, 49, 3C, 00, 04, 30, 00, 00, 00, 10, 07, 6B, 08, 55, A3, 40, 58, 3D, 02, DC, 41, 63, 00, 00, 00, 49, 3C, 00, 21, 04, F0, 00, 00, 10, 07, AB, 08, 55, A3, 40, 58, 3D, 4D, 02, DC, 41, 63, 00, 00, 49, 3C, 00, 22, 05, F0, 19, 00, 00, 10, 07 repeats... Any suggestions? Right baud rate? Security Codes? Any help? Note PCM : SERVICE NO 16234531 BCC CJDN-1927 PCB is marked "P8". Thanx guys. Andrew and Richard. ------------------------------ Date: Wed, 23 Jun 1999 17:12:24 -0700 From: Al Lipper Subject: 8051 based EFI system and ECU6/7 Julian, it's great to hear about your work with EFI. The 8051FA is a great CPU, and in fact, I built my original prototype for the ECU6 system using a board based on it. ECU6 itself uses a 80C51GB, which is basically the same as the FA but has a built-in A/D and some other stuff. We moved on from there when they discontinued the GB, and that's why ECU7 uses the Phillips 80C552. The software from ECU6 (EFI02.ASM in particular) should work with little modification on the 8051FA based system. Anyway, it's great to have you on the project. I'm not sure what the problem you're having with Protel is, but it sounds like it's not reading the aperture table right (many programs seem to have a slightly different formats). If you have a Gerber viewer, it might help (at least to see what it should look like). Keep me up on your progress. Al At 05:30 PM 6/23/99 +0930, you wrote: >Hi Al, > >My name is Julian Merritt and I live in Adelaide Australia. Having just >built a basic EFI controller using the Intel PCA port (8051FA) I was >going to step up to the 80c552 just as you yourself have. You computer >is exactly what I was about to design and develop. Out here in Oz a lot >of people put cheap Jap hi performance 4 cyclinders and rotary's in old >model cars, I myself have one, but we also have a lack of CHEAP >computers to run them and so like you self I was planning to build one >and market the product someday. > >Sooooo rather than re-invent the wheel I was planning on using your >design, however after downloading the Orcad files I had some difficulty >in putting all the layers together (I'm using protel) especially what >seems to be the ECU7 I/O board tracks which seem to have gone a little >haywire some where - the tracks appear broken and also appear in little >rings everywhere. > >Anyway I'd be interested in working with you and your team of followers >in developing this product further. >I was planning in having a prototype I/O board made up to test on my >existing hardware before moving on and building the prototype 80c552 cpu >board. Anyway that's where I'm up to at this point in time. >Catcha, > >Julian > ------------------------------ Date: Wed, 23 Jun 1999 18:09:01 +0000 From: xxalexx@xxx.com Subject: Re: SV: Need help with Bosch part no. The Kjet is not in my recent memory cells, I do not think early Kjets used this, possible accumulator, I will check Bosch book Thur. Alex > > I have access to a box full of Euro regulators at a US envirnomental > > affairs site. The Euro regs have atmospheric(boost) and vacuum ports > > The main diff. it seems in regualtors is spring and heater > > ratings for cold start. You can adjust cold and hot pressures with > > a BFH or similiar hammer. > > alex > > Hmm...maybe I wasn't clear enough. It is not the usual K-jetronic warm-up > (or control pressure) regulator I am worried about, but rather an > "EFI-style" pressure regulator coupled in parallell to the warm-up ditto. > > The regulator in question looks just like the ones used on the end of a L, > LE -jetronic/Motronic EFI. > > Regards > > Gustaf (btw, the car in question (1974 Capri Turbo) is finally up and > running OK) > > > > Hi List > > > > > > I would need some hwlp with a Bosch part number - it is a (special) fuel > > > pressure regulator from a 1979 (ish) Saab 99 Turbo (K-jetronic). Looks > as > > > your normal pressure regulator, but I suspect it should reference to > boost, > > > but I'm not sure, and don't know the "rate" (boost vs fuel pressure). > > > > > > The part number is 0 280 160 208 , stamped under that is 822. > > > ------------------------------ End of DIY_EFI Digest V4 #375 ***************************** 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".