DIY_EFI Digest Tuesday, August 17 1999 Volume 04 : Number 473 In this issue: Injector Specifications. Hardrive crash FTP Server Temporarily Down FI Fuel Filters See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Mon, 16 Aug 1999 12:46:55 -0700 From: "John Dammeyer" Subject: Injector Specifications. Hi, Can anyone tell me how to find out the specifications on the Honda 1600cc Vtec Engines? The older models had a resistor bank between 5 and 7 Ohms while the newer ones don't use one. The coil resistance is about 12 Ohms for either model engine but that doesn't seem to be a really good indication of what to use for a resistor because Honda may have used darlington transistors with their extra 2V voltage drop. They may now be using intelligent switches that put a full 12V across the injectors and then lower the current after n micro-seconds. I've found that with a 6.8 ohm resistor that I've had fairly stable fuel delivery whereas we discovered today that using the Honda resistor block (6.2Ohms) that delivery is erratic, especially if the engine gets warm. I'm using sourcing FET devices (c/w short circuit protection and almost no voltage drop) so I suspect I may have to use even a 7.5 Ohm resistor but I don't like this guesswork. Also, I constrained in that I _must_ use the Honda Injectors rather than a specific Bosch Model. Suggestions? Thanks, John ------------------------------ Date: Mon, 16 Aug 1999 18:14:42 -0400 From: Paul Tholey Subject: Hardrive crash This is just a post since I am back online. I am recovering from a hardrive crash last week. Please anyone I need to tie up loose ends with can contact me so we can do so. No Worries, I am not going anywhere. Paul Tholey PS I finally picked up my 87 Starion from it's 2 year storage! I got the 32V Northstar. It (northstar) has to go to the machinist then it will be back home. Yeah baby! ------------------------------ Date: Mon, 16 Aug 1999 22:54:44 -0400 From: Frederic Breitwieser Subject: FTP Server Temporarily Down To those of you who download regularly from my FTP box, I apologize, for the next eleven hours it will be down, as that's how long its going to take slackware to arrive through the modems. So, its not on your end :) - -- Frederic Breitwieser Xephic Technology 769 Sylvan Ave #9 Bridgeport CT 06606 Tele: (203) 372-2707 Fax: (603) 372-1147 Web: http://xephic.dynip.com/ ------------------------------ Date: Mon, 16 Aug 1999 23:59:42 -0700 From: "John Dammeyer" Subject: FI Fuel Filters Hi All, Can anyone tell me the benefits of installing a high pressure fuel filter on the outlet of the pump verses a low pressure filter on the suction side of the pump? Obviously this is an external pump and is mounted some distance from the tank. I'm trying to win a discussion. My feeling is that the filters on the pressure side have, in essence, smaller holes because there is more pressure available to force the fuel through the filter. Thanks, John ------------------------------ End of DIY_EFI Digest V4 #473 ***************************** 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".