DIY_EFI Digest Saturday, April 17 1999 Volume 04 : Number 229 In this issue: Plenum volume? Re: sequential gearboxes Re: Slow admin last week... Re: sequential gearboxes Re: Test needed. Re: GM '86 2.8 Fuel Injected prom re-programming/replacing Re: Plenum volume? Re: sequential gearboxes z28 and 4.3L questions (was: wanted corvette trans) Re: ECU or ECM data files Re: Twin Turbos (Massive snippage safe to read) RE: Chevy intake manifold 14033058 Re: Twin Turbos (Massive snippage safe to read) Re: sequential gearboxes 7747 ECU 7730 ecu RE: Chevy intake manifold 14033058 Re: Twin Turbos (Massive snippage safe to read) Re: Twin Turbos (Massive snippage safe to read) Re: Slow admin last week... Want To Really Understand PIC Microcontrollers? See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Fri, 16 Apr 1999 19:22:29 -0500 From: Simon Bosworth Subject: Plenum volume? Hello all, does anyone know of a method for estimating the required volume of the plenum for a single throttle-body EFI intake system? For what its worth my engine is 1.8L / 4 cyl. Thanks, Simon ------------------------------ Date: Fri, 16 Apr 1999 19:35:12 -0500 From: "Chris G. Lucas" Subject: Re: sequential gearboxes > Well I guess I will have to put my foot in my mouth on this one :-) I > have been shifting a 4 speed without "lifting" for over 25 years. It's a > little hard on the syncros in some boxes but isn't that hard to accomplish. > It's just a matter of timing the shift with clutch and shifter. When the > timing is perfect it's unusual for the RPMs to climb more than a couple of > hundred between shifts. Haven't been doing it that long, (only 29) but I have been doing it to my Muncie M22 for over 8 years. It's all in timing. Your are right, syncros don't like the abuse, especially behind a 454, shifting at 7500. Muncies inheritantly eat 3rd up first for some reason. Jerico makes a 4 speed that is clutchless. Can exactly remember how it works, but it somehow during the shift locks both gears, and then slides off. G-force also makes a 5 speed shiftless trans. Looking into replacing mine with one of G-forces. ------------------------------ Date: Fri, 16 Apr 1999 19:40:24 -0500 From: "Chris G. Lucas" Subject: Re: Slow admin last week... - --------------664CB215F3CC494B41741B02 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit try http://www.netzero.com It is free all the time. Chris Lucas Orin Eman wrote: > Sorry about any slow admin last week, I was out of town and > had expected to be able to use one of those free 100 hour AOL > accounts... turns out there was no local AOL number, so I > was extremely limited in what I could do. Back to normal now :) > > Orin, List admin. - --------------664CB215F3CC494B41741B02 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit try http://www.netzero.com It is free all the time.
Chris Lucas

Orin Eman wrote:

Sorry about any slow admin last week, I was out of town and
had expected to be able to use one of those free 100 hour AOL
accounts... turns out there was no local AOL number, so I
was extremely limited in what I could do. Back to normal now :)
Orin, List admin.

- --------------664CB215F3CC494B41741B02-- ------------------------------ Date: Fri, 16 Apr 1999 20:43:02 -0400 From: "David A. Cooley" Subject: Re: sequential gearboxes At 07:35 PM 4/16/99 -0500, you wrote: > >Haven't been doing it that long, (only 29) but I have been doing it to my >Muncie >M22 for over 8 years. It's all in timing. Your are right, syncros don't like >the abuse, especially behind a 454, shifting at 7500. Muncies inheritantly eat >3rd up first for some reason. Jerico makes a 4 speed that is clutchless. Can >exactly remember how it works, but it somehow during the shift locks both >gears, >and then slides off. >G-force also makes a 5 speed shiftless trans. Looking into replacing mine with >one of G-forces. > Can't remember who was making them, but some company modifies Turbo 400's to not use a torque converter... Called the trans a "turbo clutch"... uses a standard clutch and pressure plate, front pump is a different animal from stock and some of the internals are modded... Use the clutch to launch and off you go! =========================================================== David Cooley N5XMT Internet: N5XMT@xxx.net Packet: N5XMT@xxx. Member #7068 Sponges grow in the ocean... Wonder how deep it would be if they didn't?! =========================================================== ------------------------------ Date: Fri, 16 Apr 1999 20:47:42 -0400 From: Shannen Durphey Subject: Re: Test needed. Bruce Plecan wrote: > > ----- Original Message ----- > From: Shannen Durphey > To: > Sent: Friday, April 16, 1999 7:37 AM > Subject: Test needed. > > I just wish I could be around to see how ya wire yourself up to make memory > tests, with a two channel scope. Even if your doing simple tests. > Grumpy > > > If anyone has a bench run distributor and a 2 channel O'scope, and > > would be willing to run a simple test, please send E-mail off list. I > > need to see if my memory is any good. > > Shannen > > First part is learning to sit veeery still... Shannen ------------------------------ Date: Fri, 16 Apr 1999 21:04:25 -0400 From: "Bruce Plecan" Subject: Re: GM '86 2.8 Fuel Injected prom re-programming/replacing - ----- Original Message ----- From: James P Hunt To: Sent: Friday, April 16, 1999 7:25 PM Subject: GM '86 2.8 Fuel Injected prom re-programming/replacing MAP 2 Bar, oem gm 1227749. 4-6 cylinder applications. Second choice IMHO Haltech E6GM ($700 USA). Also, Canadian outfit SDS. Bruce > As I stated in a previous post, I have an '85 Fiero, that I am planning > to turbocharge, but I failed to mention that the ECM, wiring, etc. is > from an '86 Fiero. > > I realized this after the last time I took my interior apart and noticed > a late-model style ECM. > > So now my question is as follows, does anyone know where I can find a > prom file, or info on programming a replacement prom for the ECM, > preferably to use in conjunction with a 2-bar MAP sensor. > > TIA > James H. > Valrico, FL > war_machine1@xxx.com > '82 Honda CB650 > '85 Fiero 2m6 SC > > ___________________________________________________________________ > You don't need to buy Internet access to use free Internet e-mail. > Get completely free e-mail from Juno at http://www.juno.com/getjuno.html > or call Juno at (800) 654-JUNO [654-5866] > ------------------------------ Date: Fri, 16 Apr 1999 21:06:16 -0400 From: "Bruce Plecan" Subject: Re: Plenum volume? - ----- Original Message ----- From: Simon Bosworth To: Sent: Friday, April 16, 1999 8:22 PM Subject: Plenum volume? What no turbo?. Last trend at looking at Sport Compact Cars, Hi Tech Performance looks like they are going toward plenum+engine displacement. Best answer go IR Bruce > Hello all, > does anyone know of a method for estimating the required volume of the > plenum for a single throttle-body EFI intake system? For what its worth > my engine is 1.8L / 4 cyl. > > Thanks, > Simon > > ------------------------------ Date: Fri, 16 Apr 1999 21:09:51 -0400 From: "Bruce Plecan" Subject: Re: sequential gearboxes - ----- Original Message ----- From: David A. Cooley To: Sent: Friday, April 16, 1999 8:43 PM Subject: Re: sequential gearboxes Clutch flites go back to the late 60's early 70's. Bruce Circle track cars using clutched Powerglides have been mentioned also. What this world needs is a PCM ustilising torque management for the gear change, and traction control would be a no brainer. > At 07:35 PM 4/16/99 -0500, you wrote: > > > >Haven't been doing it that long, (only 29) but I have been doing it to my > >Muncie > >M22 for over 8 years. It's all in timing. Your are right, syncros don't like > >the abuse, especially behind a 454, shifting at 7500. Muncies > inheritantly eat > >3rd up first for some reason. Jerico makes a 4 speed that is clutchless. Can > >exactly remember how it works, but it somehow during the shift locks both > >gears, > >and then slides off. > >G-force also makes a 5 speed shiftless trans. Looking into replacing mine > with > >one of G-forces. > > > > Can't remember who was making them, but some company modifies Turbo 400's > to not use a torque converter... Called the trans a "turbo clutch"... uses > a standard clutch and pressure plate, front pump is a different animal from > stock and some of the internals are modded... Use the clutch to launch and > off you go! > > =========================================================== > David Cooley N5XMT Internet: N5XMT@xxx.net > Packet: N5XMT@xxx. Member #7068 > Sponges grow in the ocean... Wonder how deep it would be if they didn't?! > =========================================================== > ------------------------------ Date: Fri, 16 Apr 1999 20:18:25 -0500 From: "Chris G. Lucas" Subject: z28 and 4.3L questions (was: wanted corvette trans) Thanks Ken. I am just trying to start playing with this thing. Hard to find time between school, work, hotrods, playing.....etc. I will check out the gmecm list. Also, got anything on a free scantool and programmer for a 1994 s-10 4.3L. Or a good one that cost? Thanks Chris Lucas Ken Kelly wrote: > Chris, > Check the gmecm list. Dave and I are working on this PCM. A > scanner is available on Dave's web site, > http://www.geocities.com/MotorCity/Shop/1624/ > and I have a PCM editor in progress. We are still working on > the Flash programmer. I socketed my chips to allow changes > for now. > > Ken > > "Chris G. Lucas" wrote: > > > > Check www.gearzone.net This is the "Home of Corvette 4+3 Overdrives". There is > > alot of information on this transmission here. Paul Blaccard (Admin) is very > > informed of these and other manual transmissions. His email is > > support@xxx. Sorry it took so long, I am just onlooking the discussion > > as of now. I am wondering what I need to get started in interfacing the computer > > of a 94 Z28 6speed. I have no idea where to begin. Thanks > > > > Chris Lucas > > > > WATCHmeDRV@xxx.com wrote: > > > > > I am looking for super T10 parts or the complete trans. It's a 4+3 for a > > > corvette. > > > If anyone can help me with some parts or a complete trans that you might have > > > laying around, It would sure help me out. My # is 706-547-0052, if no answer > > > please leave a message. > > > Thanks, > > > DETROIT AMERSON ------------------------------ Date: Sat, 17 Apr 1999 09:20:17 -0700 From: "Bruce & Lisa Wilcox" Subject: Re: ECU or ECM data files Hi Wayne, I will volunteer to work with someone on a 1227165 .ecu file. Is anyone interested?? Best Regards, Bruce Wilcox - -----Original Message----- From: Wayne Blair To: gmecm@xxx.edu>; diy_efi@xxx.edu>; diy_efi@xxx.edu> Date: Thursday, April 15, 1999 9:22 PM Subject: ECU or ECM data files >Hi all, I've been getting requests for .ecu file for Promedit. >Has any one built up any of these files for various ECU. >If you could post any info files you'd like to share to the >"incoming" area I can point people at it. >Or is there a collection of these some where ? >There is a newer version of promedit on the ftp site. >IF! I get the time I'll enhance the program so it can work with the >TUNA style info file also. > ><<<<<<<<<<<<<<<< bye >>>>>>>>>>>>>>>>> >wayne >[Brisbane Australia] > ------------------------------ Date: Fri, 16 Apr 1999 19:44:24 -0600 From: Nathan Acree Subject: Re: Twin Turbos (Massive snippage safe to read) Frederic wrote: > >the two modes of operation. The www.syty.org or .com has a list of all the > >candidates. > > OKay, i'm on the way! EIght is good. > > >OK whatza VATS turbo? > > I may have the acronym wrong, but its the turbo with integral "wastegate", > which instead of a flap door or plunger/spring type of configuration, the > turbo has small vanes that move depending on boost, the vanes completely > surrounding the turbo fan. Its called a VATN turbo -Variable Area Turbine Nozzle. Essentially the turbine is made of many vanes that change their angle in the exhaust stream. It functions like many different sized turbos all in one unit, ie. it makes boost at lower rpm because of the variable area turbine, but still can have the capacity to make boost at high rpm. Nathan Acree (new list member) ------------------------------ Date: Fri, 16 Apr 1999 19:43:15 -0600 From: Marc Piccioni Subject: RE: Chevy intake manifold 14033058 Ted, Give any GM dealer part counter a call with the part # and ask him to do a "where used" cross reference. /Marc - ---------- From: Stowe, Ted-SEA[SMTP:StowT@xxx.com] Sent: April 16, 1999 2:56 PM To: 'diy_efi@xxx.edu' Subject: Chevy intake manifold 14033058 Does this number ring a bell with anyone ? it is supposed to be a corvette alum. intake w egr. I am trying to figure out if it would fit my 73 350. thanks, Ted Stowe begin 600 WINMAIL.DAT M>)\^(@\!`0:0" `$```````!``$``0>0!@`(````Y 0```````#H``$-@ 0` M`@````(``@`!!) &`& !```!````# ````,``# #````"P`/#@`````"`?\/ M`0```&$`````````@2L?I+ZC$!F=;@#=`0]4`@````!D:7E?969I0&5F:3,S M,BYE;F``,P`0`` M`"(```!D:7E?969I0&5F:3,S,BYE;F5]E9FE 969I,S,R+F5N9RYO M:&EO+7-T871E+F5D=2<``@$+, $````G````4TU44#I$25E?149)0$5&23,S M,BY%3D2!I;G1A:V4@;6%N:69O;&0@,30P,S,P-3@` MK@xxx.````SP<$`! `$P`J M``L`!0`W`0$)@ $`(0```$)"-T0Y13,S,S-&-$0R,3%"13E#-#0T-34S-30P M,# P```'`0.0!@`0! ``$@````L`(P```````P`F```````+`"D```````,` M-@``````0 `Y`& "3*ESB+X!'@!P``$````C````4D4Z($-H979Y(&EN=&%K M92!M86YI9F]L9" Q-# S,S U. ```@%Q``$````6`````;Z(# $````%````4TU44 `````>`!\,`0```!@```!M M<&EC8VEO;FE 871T8V%N861A+FYE= `#``80(]\"6 ,`!Q!I`0``'@`($ $` M``!E````5$5$+$=)5D5!3EE'341%04Q%4E!!4E1#3U5.5$5204-!3$Q7251( M5$A%4$%25"-!3D1!4TM(24U43T1/02)72$521553140B0U)/4U-2149%4D5. M0T4O34%20RTM+2TM+2TM+0`````"`0D0`0```(8"``""`@``B@0``$Q:1G7; MRT6 _P`*`0\"%0*H!>L"@P!0`O()`@!C: K 1V032 -L = MW020( JQ!4 %H'4",!ZA'F$?$ = `R #\'1H(%<@,!W0'M,C'>%D'>!SV&L@ M: =P(%!O'E AX)D?H")W(' 7H"!U$;"\9"(?$ -@!!$7H&8B@9!N8V4N',PO M30K !F,09&EY7PW :4 Z@8D:X#(N"?!G+F\AD#1O M+1/ 81/0.R!D=<8G-C\QSG5B:BD1.%]U+4M#('!V'A +@xxx.!!I & M\"$P)S :T3#,-3@E7R9C,S8GUQO51(# $`"#\;G4&T!ZA!1 : MH!^11M#O'^8=\0(@'= _"H4@($$`X00@>the two modes of operation. The www.syty.org or .com has a list of all the >>candidates. > >OKay, i'm on the way! EIght is good. > >>OK whatza VATS turbo? > > >I may have the acronym wrong, but its the turbo with integral "wastegate", >which instead of a flap door or plunger/spring type of configuration, the >turbo has small vanes that move depending on boost, the vanes completely >surrounding the turbo fan. It's VATN--for Variable Area Turbine Nozzle. Garrett is getting some of them to market, and Aeorcharger is making some BEAUTIES--with ball bearings, independent oil supply, and so on. Full torque/boost up by 1300 or 1500 rpm, and WAY more efficient than even a screw compressor type supercharger (such as a Whipple). Regards, Greg ------------------------------ Date: Fri, 16 Apr 1999 20:36:21 -0600 From: bearbvd@xxx.net (Greg Hermann) Subject: Re: sequential gearboxes >At 07:35 PM 4/16/99 -0500, you wrote: >> >>Haven't been doing it that long, (only 29) but I have been doing it to my >>Muncie >>M22 for over 8 years. It's all in timing. Your are right, syncros don't like >>the abuse, especially behind a 454, shifting at 7500. Muncies >inheritantly eat >>3rd up first for some reason. Jerico makes a 4 speed that is clutchless. Can >>exactly remember how it works, but it somehow during the shift locks both >>gears, >>and then slides off. >>G-force also makes a 5 speed shiftless trans. Looking into replacing mine >with >>one of G-forces. >> > >Can't remember who was making them, but some company modifies Turbo 400's >to not use a torque converter... Called the trans a "turbo clutch"... uses >a standard clutch and pressure plate, front pump is a different animal from >stock and some of the internals are modded... Use the clutch to launch and >off you go! "Clutch Flite" 727's came even before that! Greg ------------------------------ Date: Fri, 16 Apr 1999 20:51:46 -0600 From: cwagner@xxx.net Subject: 7747 ECU For anyone who is interested, I have put together an ECU file for use with promedit to use when working with 7747 bins. I even went so far as to allow the modification of the BLM's and EGR on temp. If anyone wants to try it, it is located in incoming under work2.ecu. Keep in mind that this is the first time I have done something like this, so if you have any suggestions, let me know. ------------------------------ Date: Fri, 16 Apr 1999 20:58:40 -0600 From: cwagner@xxx.net Subject: 7730 ecu Here is a big question, but here it goes. Does anyone have a list of everything is located on a 7730 chip? I would like to try to develop an ecu file for this particular computer since there are a few people who use this computer quite a bit. ------------------------------ Date: Fri, 16 Apr 1999 20:57:42 -0700 From: "Stowe, Ted-SEA" Subject: RE: Chevy intake manifold 14033058 ok thanks Marc. > -----Original Message----- > From: mpiccioni@xxx.net] > Sent: Friday, April 16, 1999 6:43 PM > To: 'diy_efi@xxx.edu' > Subject: RE: Chevy intake manifold 14033058 > > ****** Message from InterScan E-Mail VirusWall NT ****** > > ** No virus found in attached file WINMAIL.DAT > > This email has been automatically scanned for virus attachments and is not > infected. > > ***************** End of message *************** > Ted, > > Give any GM dealer part counter a call with the part # and ask him to do a > "where used" cross reference. > > /Marc > > ---------- > From: Stowe, Ted-SEA[SMTP:StowT@xxx.com] > Sent: April 16, 1999 2:56 PM > To: 'diy_efi@xxx.edu' > Subject: Chevy intake manifold 14033058 > > > Does this number ring a bell with anyone ? > it is supposed to be a corvette alum. intake w egr. > I am trying to figure out if it would fit my 73 350. > > thanks, Ted Stowe > > ------------------------------ Date: Sat, 17 Apr 1999 01:21:40 -0400 From: "Frederic" Subject: Re: Twin Turbos (Massive snippage safe to read) >Its called a VATN turbo -Variable Area Turbine Nozzle. Essentially the turbine Bingo Nathan, thanks for correcting my horrible memory... and welcome to the list :) ------------------------------ Date: Sat, 17 Apr 1999 01:25:36 -0400 From: "Frederic" Subject: Re: Twin Turbos (Massive snippage safe to read) >or 1500 rpm, and WAY more efficient than even a screw compressor type That's exactly why I want one... just don't have quite that much cash. They spool up to full boost much earlier, like you said. Matches everything I've read. >supercharger (such as a Whipple). I never considered the Whipple all that efficient... you're talking the intake mounted unit, like the Weilands, right? Frederic ------------------------------ Date: Fri, 16 Apr 1999 22:51:23 -0700 (PDT) From: Orin Eman Subject: Re: Slow admin last week... Wow, a reply from a message about 2 months old! I checked it. No number for Steamboat Springs CO or Ketchum ID. Thanks, Orin. > try http://www.netzero.com It is free all the time. > Chris Lucas > Orin Eman wrote: > > Sorry about any slow admin last week, I was out of town and > > had expected to be able to use one of those free 100 hour AOL > > accounts... turns out there was no local AOL number, so I > > was extremely limited in what I could do. Back to normal now :) > > > > Orin, List admin. ------------------------------ Date: Sat, 17 Apr 1999 02:40:07 -0300 From: "Pedro Haynes" Subject: Want To Really Understand PIC Microcontrollers? Article FREE http://www.hobby-electronics.com/default.htm ------------------------------ End of DIY_EFI Digest V4 #229 ***************************** 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".