DIY_EFI Digest Thursday, 4 September 1997 Volume 02 : Number 305 In this issue: Re: Injectors resistance Re: Knock Knock knock knock Display Tech... Re: Injectors resistance Re: electroluminescent displays (was Re: fluorescent displays Re: Knock Knock Re: Knock Knock Re: Display Tech... Re: Knock Knock Re: Injectors resistance RE: Adjusting boost - attn: stefan olsson Re: Fluorescent display Re: Knock Knock Knock Knock Re: electroluminescent displays Re: EBC/AIC? See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- From: Sandy Date: Wed, 03 Sep 1997 18:01:42 -0700 Subject: Re: Injectors resistance At 09:24 PM 9/3/97 GMT, you wrote: >On Wed, 03 Sep 1997 11:07:48 -0700, swagaero wrote: > >>alex nicu wrote: >>> >>> Does anyone know what is the resistance range for injectors ( common , >>> on the market ) ? > >SwagMan wrote: >>2, 12, 16, 32 > >Hey Steve. > >Ooooh, time to pick your brain some more...do you mind? I've had my eye >on that Moto device (that has 4 integral injector drivers in it... >mc33293a, Quad Injector Driver), and COULD be all that is needed to [SNIP] The moto part is hard to find, and somewhat expsive in low qty. If you are going to do saturated injectors, ie, the high impedance type (not 2 ohms) you can run the National LM1951 1Amp driver. It has the built in zener, and is short proof. I tried one and it seems to work great. They are a bit costly too in low qty, but you can get them from DIGIKEY. If you want to drive the low impedance injectors, then you can use one of the PCB and related components that are on the EFI332 ftp site, the file is SUBDRV.??? or something of that nature. Sandy ------------------------------ From: Johnny Date: Wed, 03 Sep 1997 18:07:16 -0700 Subject: Re: Knock Knock swagaero wrote: > > for youse guys waiting I think the 513K file overwelmed the server I > will try again later. I already sent this to Steve, but for everyone else: 40K IS THE LIMIT ON FILE ATTACHMENTS! Majordummo will bounce anything bigger than that. I usually don't advertise this feature because all that stuff that gets bounced ends up on my desktop, and I have accumulated a very nice assortment of EFI ROMS, TPI hacks, SuperChips and whatever else. BTW Steve, nice schematic. ;) You will all have to either get him to put it on the ftp site, or get him to send it to you via private email. Even though I have it, I can't give it out because those are his rules attached to the file. - -j- ------------------------------ From: swagaero Date: Wed, 03 Sep 1997 18:37:59 -0700 Subject: knock knock for those of you that want the knock detector schematic send me a private e-mail to wb7omm@xxx. The only thing I ask that you do not post it or send it to anyone else use it for yourself. Steve Parkman ----|------||------|---- --|------[]------|-- 0/ \0 www.flash.net/~swagaero ------------------------------ From: Paul Witek Date: Wed, 3 Sep 1997 20:48:41 -0500 (CDT) Subject: Display Tech... I, too, saw the cool fluorescent displays in Summit - what impressed me was the A/F ratio meter that was audacious enough to give a numerical stoich value. Other interesting display technologies exist, too. A nice summary of several different styles is located at: http://www.ieeinc.com/rghtdis.htm I mean, how cool would it be to have a DC-plasma display in your dash? Paul Witek zagato@xxx.net Shemp Mo-Din Italian Motorsports http://www.evansville.net/~zagato ------------------------------ From: garfield@xxx.com (Garfield) Date: Thu, 04 Sep 1997 02:17:25 GMT Subject: Re: Injectors resistance On Wed, 03 Sep 1997 18:01:42 -0700, Sandy wrote: >The moto part is hard to find, and somewhat expsive in low qty. If you = are >going to do saturated injectors, ie, the high impedance type (not 2 = ohms) >you can run the National LM1951 1Amp driver. Thanks for the suggestion, Sandy. I knew about the 1951s already, but they are marked as "life-time buy", due to be obsolete by 3-98, AND I wanted the higher integration level, anyways. I work for a large buyer of semi stuff (Cisco Systems), and we have Moto sales creatures crawling all over us trying to give us stuff, so if THEY have them, I can get some that way. Sheesh, what a guy's gotta do fer parts, eh? Garfield ------------------------------ From: clsnyde@xxx.net (Clare Snyder) Date: Thu, 4 Sep 1997 02:22:00 GMT Subject: Re: electroluminescent displays (was Re: fluorescent displays >>anyone know anything about fluorescent displays ?? I'd like >>to hear from anyone who has used them .... where to get, what >>are the hassles involved in using them, etc > >maybe I'm looking for electroluminescent displays ??? > >I want cockpit readouts -- would like to have the nice >displays that are in the radios and clocks -- where and how ?? > >Tom Cloud > > All generalizations are false (there are NO absolutes) > Dakota Digital and Cyberdyne have nice units. The cyberdyne is likely the best deal - Check with Summit Racing at 1-800-230-3030. Ask for their catalog. ------------------------------ From: garfield@xxx.com (Garfield) Date: Thu, 04 Sep 1997 02:33:34 GMT Subject: Re: Knock Knock On Wed, 03 Sep 1997 18:07:16 -0700, Johnny wrote: >Majordummo will bounce anything bigger than that. I usually don't >advertise this feature because all that stuff that gets bounced ends up >on my desktop, and I have accumulated a very nice assortment of EFI >ROMS, TPI hacks, SuperChips and whatever else. BTW Steve, nice >schematic. ;) Ha ha ha, you rascal Johnny! >You will all have to either get him to put it on the ftp site, or get >him to send it to you via private email. Even though I have it, I can't >give it out because those are his rules attached to the file. Geez, catchA22. OKie, DOkie, who's gonna fix this? I DON'T think Steve wants to put the thing up waving in the public eye, and so IF Steve were to give Johnny permission to forward it on out to the list, would that (grovel, snivel, whimper) make everybody happy? Hmm, OK it's big, and maybe not everyone wants it. Now, what's a gerbel ta do!? Garfield P.S. Hey, waidaminute, IF Steve has posted the drawing to THIS list, then that GIVES you permission, Johnny, to forward it on out to anyone presently on the LIST, doesn't it STEVE? Hell, that's EXACTLY what the DOMO woulda done, if it hadn't been throttled. Come on, this is gettin ridiculous. Steve, can you help? Reminds me of a Laurel & Hardy episode. ------------------------------ From: clsnyde@xxx.net (Clare Snyder) Date: Thu, 4 Sep 1997 02:39:27 GMT Subject: Re: Knock Knock >for youse guys waiting I think the 513K file overwelmed the server I >will try again later. > >Steve > Too bad you can't give it to us as aJPEG - I got it converted to MS WORD document, and it refuses to print. I can see it, but it won't migrate to paper. Wonder why. ------------------------------ From: swagaero Date: Wed, 03 Sep 1997 19:49:06 -0700 Subject: Re: Display Tech... Paul Witek wrote: > > I, too, saw the cool fluorescent displays in Summit - what impressed me was > the A/F ratio meter that was audacious enough to give a numerical stoich > value. > > Other interesting display technologies exist, too. A nice summary of > several different styles is located at: > > http://www.ieeinc.com/rghtdis.htm > > I mean, how cool would it be to have a DC-plasma display in your dash? > > Paul Witek > > zagato@xxx.net > Shemp Mo-Din Italian Motorsports > http://www.evansville.net/~zagato did they have any info on the a/f meter I could do some neat tuning with this. - -- ----|------||------|---- --|------[]------|-- 0/ \0 www.flash.net/~swagaero ------------------------------ From: swagaero Date: Wed, 03 Sep 1997 19:59:28 -0700 Subject: Re: Knock Knock Garfield wrote: > > On Wed, 03 Sep 1997 18:07:16 -0700, Johnny > wrote: > > >Majordummo will bounce anything bigger than that. I usually don't > >advertise this feature because all that stuff that gets bounced ends up > >on my desktop, and I have accumulated a very nice assortment of EFI > >ROMS, TPI hacks, SuperChips and whatever else. BTW Steve, nice > >schematic. ;) > > Ha ha ha, you rascal Johnny! > > >You will all have to either get him to put it on the ftp site, or get > >him to send it to you via private email. Even though I have it, I can't > >give it out because those are his rules attached to the file. > > Geez, catchA22. OKie, DOkie, who's gonna fix this? I DON'T think Steve > wants to put the thing up waving in the public eye, and so IF Steve were > to give Johnny permission to forward it on out to the list, would that > (grovel, snivel, whimper) make everybody happy? > > Hmm, OK it's big, and maybe not everyone wants it. Now, what's a gerbel > ta do!? > > Garfield > > P.S. Hey, waidaminute, IF Steve has posted the drawing to THIS list, > then that GIVES you permission, Johnny, to forward it on out to anyone > presently on the LIST, doesn't it STEVE? Hell, that's EXACTLY what the > DOMO woulda done, if it hadn't been throttled. Come on, this is gettin > ridiculous. Steve, can you help? Reminds me of a Laurel & Hardy episode. The minor problem is taken care of and if you look in your stockings you will see that Santa has left a present. Steve - -- ----|------||------|---- --|------[]------|-- 0/ \0 www.flash.net/~swagaero ------------------------------ From: Webb Date: Wed, 03 Sep 1997 19:14:56 -0800 Subject: Re: Injectors resistance - --------------E663C43AD82AC957429D8D03 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sandy wrote: > At 09:24 PM 9/3/97 GMT, you wrote: > >On Wed, 03 Sep 1997 11:07:48 -0700, swagaero > wrote: > > > >>alex nicu wrote: > >>> > >>> Does anyone know what is the resistance range for injectors > ( common , > >>> on the market ) ? > > > >SwagMan wrote: > >>2, 12, 16, 32 > > > >Hey Steve. > > > >Ooooh, time to pick your brain some more...do you mind? I've > had my eye > >on that Moto device (that has 4 integral injector drivers in > it... > >mc33293a, Quad Injector Driver), and COULD be all that is > needed to > [SNIP] > > The moto part is hard to find, and somewhat expsive in low qty. > If you are > going to do saturated injectors, ie, the high impedance type > (not 2 ohms) > you can run the National LM1951 1Amp driver. It has the built > in zener, and > is short proof. I tried one and it seems to work great. They > are a bit > costly too in low qty, but you can get them from DIGIKEY. If > you want to > drive the low impedance injectors, then you can use one of the > PCB and > related components that are on the EFI332 ftp site, the file is > SUBDRV.??? > or something of that nature. > > Sandy Just a note- National semi is real good about free samples. They have 1949's now - at least they finally got me mine. The things do the 1/4 current back off for hold current - which I don't think the '51's do. Try National Semiconductor - --------------E663C43AD82AC957429D8D03 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Sandy wrote:
At 09:24 PM 9/3/97 GMT, you wrote:
>On Wed, 03 Sep 1997 11:07:48 -0700, swagaero <swagaero@xxx.net> wrote:
>
>>alex nicu wrote:
>>>
>>> Does anyone know what is the resistance range for injectors ( common ,
>>> on the market ) ?
>
>SwagMan wrote:
>>2, 12, 16, 32
>
>Hey Steve.
>
>Ooooh, time to pick your brain some more...do you mind? I've had my eye
>on that Moto device (that has 4 integral injector drivers in it...
>mc33293a, Quad Injector Driver), and COULD be all that is needed to
[SNIP]

The moto part is hard to find, and somewhat expsive in low qty. If you are
going to do saturated injectors, ie, the high impedance type (not 2 ohms)
you can run the National LM1951 1Amp driver. It has the built in zener, and
is short proof. I tried one and it seems to work great. They are a bit
costly too in low qty, but you can get them from DIGIKEY. If you want to
drive the low impedance injectors, then you can use one of the PCB and
related components that are on the EFI332 ftp site, the file is SUBDRV.???
or something of that nature.

Sandy

Just a note-  National semi is real good about free samples. They have 1949's now - at least they finally got me mine. The things do the 1/4 current back off for hold current - which I don't think the '51's do.

Try
 National Semiconductor
   - --------------E663C43AD82AC957429D8D03-- ------------------------------ From: MaxBoost@xxx.com Date: Wed, 3 Sep 1997 23:19:08 -0400 (EDT) Subject: RE: Adjusting boost - attn: stefan olsson This message is to Stefan Olsson. I tried sending this a while ago but never got a reply so I am posting this to the list as well to try and get it through. Please reply privately. Thanks. >I sent you some mail earlier on using the APC on a race car. I asked if you had any >details on why not to do it. Also I am looking for a chip for my friends 97 Saab 900. You >mentioned that you knew where to get some. >Max. ------------------------------ From: nicu alexandru Date: Thu, 4 Sep 1997 11:16:38 +0800 Subject: Re: Fluorescent display - ------ =_NextPart_000_01BCB924.137E5960 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit You can find this type of display on farnell ( http://www.farnell.com ) . Attached you can find one aplication ( for bar graf , but this it's not important ) for this type of display. - ------ =_NextPart_000_01BCB924.137E5960 Content-Type: application/postscript; name="VACUUM.PS" Content-Transfer-Encoding: base64 JSFQUy1BZG9iZSAzLjANCiUlQ3JlYXRvcjogR1N2aWV3DQolJVRpdGxlOiBHaG9zdHNjcmlwdCB3 cmFwcGVyIGZvciBDOi9kb3dubG9hZC9jYXIvZW5naW5lZXIvTE0zOTE2LnBkZg0KJSVQYWdlczog MQ0KJSVFbmRDb21tZW50cw0KL1BhZ2UjIG51bGwgZGVmDQovUGFnZSBudWxsIGRlZg0KL1BERlNh dmUgbnVsbCBkZWYNCkdTX1BERl9Qcm9jU2V0IGJlZ2luDQpwZGZkaWN0IGJlZ2luDQooQzovZG93 bmxvYWQvY2FyL2VuZ2luZWVyL0xNMzkxNi5wZGYpIChyKSBmaWxlIHBkZm9wZW4gYmVnaW4NCiUl RW5kUHJvbG9nDQolJVBhZ2U6IDE1IDENCiglJVBhZ2U6IDE1IDFcbikgcHJpbnQgZmx1c2gNCi9Q YWdlIyAxNSBzdG9yZQ0KMTUgcGRmZ2V0cGFnZSAvUGFnZSBleGNoIHN0b3JlDQpzYXZlIC9QREZT YXZlIGV4Y2ggc3RvcmUNClBhZ2UgcGRmc2hvd3BhZ2UNClBERlNhdmUgcmVzdG9yZQ0KJSVUcmFp bGVyDQpjdXJyZW50ZGljdCBwZGZjbG9zZQ0KZW5kDQplbmQNCmVuZA0K - ------ =_NextPart_000_01BCB924.137E5960-- ------------------------------ From: swagaero Date: Wed, 03 Sep 1997 20:23:07 -0700 Subject: Re: Knock Knock Clare Snyder wrote: > > >for youse guys waiting I think the 513K file overwelmed the server I > >will try again later. > > > >Steve > > > Too bad you can't give it to us as aJPEG - I got it converted to MS WORD > document, and it refuses to print. I can see it, but it won't migrate to > paper. Wonder why. printer driver reload on doc and then windows will wake up - -- ----|------||------|---- --|------[]------|-- 0/ \0 www.flash.net/~swagaero ------------------------------ From: swagaero Date: Wed, 03 Sep 1997 20:36:09 -0700 Subject: Knock Knock for all those that asked for the Knock detector schematic let me know if you got it. Steve ----|------||------|---- --|------[]------|-- 0/ \0 www.flash.net/~swagaero ------------------------------ From: eric schumacher Date: Wed, 03 Sep 1997 20:46:05 -0700 Subject: Re: electroluminescent displays Hi Group The most common digital automotive displays are vacuum fluorescent displays(VFD). They are typically green, but other colors are possible(its a phospor). The tubes are manufactured by four companies worldwide: Noritake, Futaba and Samsung (NEC has recently left the Business.) Complete modules with drive electronics are made by a number of other companies. To light these puppies up it takes an AC filament voltage (between 5 & 10 volts, depending on the width of the tube) and grid and anode voltages. Grid & anode voltages are typically between 40 & 60 volts DC depending on the number of grids. The number of grids determines the multiplex ratio hence the voltage. There are lots of drivers on the market from guys like Supertex and Allegro (ex Sprague). It usually takes a microprocessor to run a typical display. an 8051 will run a dashboard and a clock chip will run a clock with no extra drivers, that is kinda the range. The big problem with these things is that if you want a custom pattern (like in a VCR) it is big bux (approx 35 grand) If you can get your hands on a panel you like it is not too unreasonable to build the drive electronics yourself, however The best way to get there is a full graphics panel then all is software. All the cutsy icons and such come for free. As long as you don't want too much area it is affordable. To change the subject a bit perhaps the best technology for an custom dash is electrolumniscent, available from Planar in Beaverton OR. It is very wide in temperature range unlike graphic LCDs, and is a very high contrast and crisp amber>A Lotsa Luck Eric 85 GTI with VR6 power ------------------------------ From: avos@xxx.au Date: Thu, 04 Sep 97 14:01:43 EST Subject: Re: EBC/AIC? I'm currently making one myself (EBC).....What info are you after? BTW- A simple single injector controller to richen under boost should be a simple add-on to an EBC. avos@xxx.au ______________________________ Reply Separator _________________________________ Subject: EBC/AIC? Author: diy_efi@xxx.edu at INTERNET Date: 04/9/97 8:22 Does anyone have any info on making a Electroninc Boost Controller? And/Or a Addition Injector Controller? Thanks, Jr ------------------------------ End of DIY_EFI Digest V2 #305 ***************************** 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".