DIY_EFI Digest Tuesday, February 8 2000 Volume 05 : Number 057 In this issue: Re: DIY_EFI Digest V5 #56 3 Bar GM sensor 3 Bar GM sensor Re: 3 Bar GM sensor Re: bypass valve Re: Re: bypass valve Material in turbo headers. Guidance:I am a beginer !! Re: Material in turbo headers. Holley TBI Injectors VS Pressure F150 5.0L Knock Sensor Re: Holley TBI Injectors VS Pressure idea for an enclosure for efi_332 ecu [Fwd: idea for an enclosure for efi_332 ecu] Re: Hey guys Haltech vs. Electromotive vs. Wolf 3D vs ??? See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Tue, 8 Feb 2000 08:49:57 -0500 From: "Clare Snyder" Subject: Re: DIY_EFI Digest V5 #56 What an AWFULL web page design!!! the backroud totally obscures the text. - ----- Original Message ----- From: DIY_EFI Digest To: Sent: Tuesday, February 08, 2000 8:00 AM Subject: DIY_EFI Digest V5 #56 > > DIY_EFI Digest Tuesday, February 8 2000 Volume 05 : Number 056 > > > > In this issue: > > RE: Measuring EGT on all cylinders? > RE: DIY_EFI Digest V5 #55 > Test > RE: ECU7 PCB layout > Re: Measuring EGT on all cylinders? > Fuel Pressure with Holley Injectors > sans cams > [none] > > See the end of the digest for information on subscribing to the > DIY_EFI or DIY_EFI-Digest mailing lists. > > ---------------------------------------------------------------------- > > Date: Mon, 07 Feb 2000 05:01:10 -0800 > From: Carl Summers > Subject: RE: Measuring EGT on all cylinders? > > Hi Jorgen, > There is a company called Hereaus that makes a robust sensor although it > is not K-type if that is what your electronics are set up for...it is a RTD > device...I don't have their URL or phone number handy....Steve Gorkowski on > this list is very familiar with this product and I hope he jumps in and > posts it...ttyl > - -Carl Summers > > - -----Original Message----- > From: owner-diy_efi@xxx.org]On > Behalf Of Jörgen Karlsson > Sent: Sunday, February 06, 2000 2:36 PM > To: DIY_EFI Mailinglist > Subject: Measuring EGT on all cylinders? > > > Hi > I am planning to run a EGT probe for every cylinder. The only experience I > have with small fast probes near the ports is from a dragraced V8. The > probes sometimes burnt up and left with the exhaust flow, not a problem for > them, their engine was not turbocharged, mine is... Can anyonne recommend a > good probe that is robust and fast. > > Jörgen Karlsson > Gothenburg, Sweden. > > > > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > Date: Mon, 7 Feb 2000 09:45:34 -0500 > From: "Flanagan, Stephen CECOM RDEC STCD" > Subject: RE: DIY_EFI Digest V5 #55 > > Date: Sun, 6 Feb 2000 23:35:34 +0100 > From: =?iso-8859-1?Q?J=F6rgen_Karlsson?= > Subject: Measuring EGT on all cylinders? > > Hi > I am planning to run a EGT probe for every cylinder. The only experience I > have with small fast probes near the ports is from a dragraced V8. The > probes sometimes burnt up and left with the exhaust flow, not a problem for > them, their engine was not turbocharged, mine is... Can anyonne recommend a > good probe that is robust and fast. > > Jorgen Karlsson > Gothenburg, Sweden. > > > > - - > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > - ------------------------------ > > Date: Sun, 6 Feb 2000 16:35:57 -0700 > From: bearbvd@xxx.net (Greg Hermann) > Subject: Re: Measuring EGT on all cylinders? > > >Hi > >I am planning to run a EGT probe for every cylinder. The only experience I > >have with small fast probes near the ports is from a dragraced V8. The > >probes sometimes burnt up and left with the exhaust flow, not a problem for > >them, their engine was not turbocharged, mine is... Can anyonne recommend a > >good probe that is robust and fast. > > > >Jorgen Karlsson > >Gothenburg, Sweden. > > Barry Grant Fuel Systems, Dalhonega, Georgia, USA > > Greg > > > I have used the Corsa EGT sensors (they make the data recorder) on a 1600 > HP turbo (Ford 302) and have seen temps as high as 1850 F, only had one > failure during the whole first season using > them, and Corsa sent a replacement for free. > > Try www.corsa-inst.com > > good luck > > steve > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > Date: Mon, 07 Feb 2000 09:02:59 -0800 > From: garwillis@xxx.com (Garfield Willis) > Subject: Test > > traffic suddenly disappeared, so do I have a problem, or ... > > Gar > > > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > Date: Mon, 7 Feb 2000 10:02:46 -0800 > From: "Al Lipper" > Subject: RE: ECU7 PCB layout > > Dominic, > You have some good questions. First, the gerber files specify the width of > each trace and pad as an aperture. This means that the outlines you are > getting is a result of some setting in the gerber viewer you are using, and > not in the file itself (I tried the file with two other viewers and traces > were filled). Next, there are a number of errors on the PC board. First, > look at the new schematic for changes to the optoisolator circuits, fuel > pump driver, stepper motor enable and the orientation of the DB-25 connector > (P-2). Next, there is an erroneous short between two traces going to the > driver transistor for injector #1 (Q1, I believe). This trace should be > eliminated. Next, on the CPU board, there is a problem with the RD and WR > lines being connected together and run as a single trace to the support > chips. The schematic is correct, but OrCAD did something unusual when it > created the netlist, so these were incorrectly indicated as a single > circuit. Also, the holes for the inter-board connector (P1) are slightly > small. Otherwise, the boards are overall correct. BTW, all of the ground > signals do get connected together at one point. Also, I am using an 18" > ribbon cable between the boards with no problem. Over the next month or so, > we'll be revising them. In the meantime, these corrections should take care > of most major issues. BTW, I have a pair of them running relatively well > at the moment. Good luck. > > > Al > > > - -----Original Message----- > From: Dominic Baker [mailto:dombaker@xxx.uk] > Sent: Saturday, February 05, 2000 12:42 PM > To: efi@xxx.org > Subject: Al Lipper ECU7 > > > Dear Al, I mailed u a couple of weeks ago about sending the ECU7 pcb etching > traces in an alternative format, well that is no longer a problem There is > a great Free Gerber viewer, with complete printing, saving and editing > facilities on the Lavenir web site, the viewer is called "Viewmate6.1" if > you want to pass that on to anyone else. > > Anyway I am ready to make the boards up at university, I had a word with the > head of electronics but unfortunately he is not prepaired to make up any > number of these boards, but he will do a one off for me, I asked him because > I saw you were having trouble with the small batch prices. > > I have but a couple of problems, One is that ECU7B(injector controller > board) Top view the pads are fine, but the traces are double outlined > instead of filled, the viewer I have cannot change this back, but I can edit > them by hand as there are not too many of them. Before I do this, are there > any newer later updates to the schematics/PCB boards I should know about > before I commit to these boards being made? This board also has a problem > around the fuse and the two relays, which is quite confusing. Being as I am > redrawing the traces this is a grey area that needs clearing up. > > The other question I have is about the earths. There are many of these and > several types eg, GND,DGND, ChassisGND etc. I have all the drawings > including the component overlay(silkscreen) on transparancy so I can look > through the boards to trace the paths to check for any errors. A lot of the > earths are clustered together with a track, but nothing joins these to the > actual GND. Do the two boards have to piggy back a short distance apart > with pins joining the earths batween the two boards? > Or do all the GND's have to be connected to say a metal box which is > earthed to the chassis? > Or even Connect a wire between all like earths, then connect that to the > chassis? > > I apologise for this long and teadious email but If I can clear these small > problems up then I can start making the ECU7 efi, straight away. > Your help would be kindly appreaciated > Yours hopefully Dom Baker > Thanks > > > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > Date: Mon, 07 Feb 2000 13:25:39 +0000 > From: Ade + Lamb Chop > Subject: Re: Measuring EGT on all cylinders? > > At 23:35 06/02/00 +0100, Jörgen Karlsson wrote: > >Hi > >I am planning to run a EGT probe for every cylinder. The only experience I > >have with small fast probes near the ports is from a dragraced V8. The > >probes sometimes burnt up and left with the exhaust flow, not a problem for > >them, their engine was not turbocharged, mine is... Can anyonne recommend a > >good probe that is robust and fast. > > One of the thermocouple will do the job. They are available for all > temperature ranges... > > Ade > > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > Date: Mon, 7 Feb 2000 22:31:00 -0600 > From: "Shane Buss" > Subject: Fuel Pressure with Holley Injectors > > I'm running very lean with 65# injectors on my holley 670cfm tbi unit... > Im running about 16psi with the stock fuel pump... > > How high can i effectively turn up the pressure? I heard with the chrysler > injectors holley uses above 17-20psi could cause problems... > > How high is the stock fuel pump good for also.. > Thanks, > Shane > > > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > Date: Tue, 08 Feb 2000 01:00:24 -0800 > From: jefg@xxx.net > Subject: sans cams > > I'm delurking to pass this on, I'm a bit behind on the > digests so hopefully this isn't a repeat. This has been > around for a while, and is very intriguing. Now, drive this > will stepper motors and you can adjust just about all the > cam variables (opening, durration, overlap) with your CPU on > the fly. > > http://www.coatesengine.com/ > > BTW, I've heard from various sources that this may be one of > those deals where business management style may kill this > idea even if the technical challenges do not. You'll notice > an overt lack of real detail. > > > - -- > - ----------------------------------------------------------------------- > Jeff jefg@xxx.com > - ----------------------------------------------------------------------- > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > Date: Tue, 08 Feb 2000 07:34:25 EST > From: "Bill Hoffman" > Subject: [none] > > Did you ever find the information you were looking for on the 882 heads? I > have them on my Corvette and was trying to find the same information. I > would greatly appreciate it if you could share any information that you > have. Thanks, Bill > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > > - ------------------------------------------------------------------------ - ---- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > ------------------------------ > > End of DIY_EFI Digest V5 #56 > **************************** > > 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". > > > - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 08 Feb 2000 06:01:21 PST From: "Steve Leonard" Subject: 3 Bar GM sensor We are building a ProMod Kawasaki Funny Bike (6.75ET's @200mph), 1425cc, Turbo, with No2. We are using a Hahn Race Craft EFI that uses a standard GM 5-volt MAP sensor. I plan on running 35-40lbs boost, my problem is these GM sensors are limited to 3-bar applications. Anybody have a source or Idea on how we can find a 4-bar sensor..... cheers Steve L. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 08 Feb 2000 06:01:21 PST From: "Steve Leonard" Subject: 3 Bar GM sensor We are building a ProMod Kawasaki Funny Bike (6.75ET's @200mph), 1425cc, Turbo, with No2. We are using a Hahn Race Craft EFI that uses a standard GM 5-volt MAP sensor. I plan on running 35-40lbs boost, my problem is these GM sensors are limited to 3-bar applications. Anybody have a source or Idea on how we can find a 4-bar sensor..... cheers Steve L. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 09:14:05 -0500 From: "C. Brooks" Subject: Re: 3 Bar GM sensor Hi Steve, hell of a project you've got there :) There are a couple companies out there with 4 bar MAP sensors, I believe Motec is one of them. However, I would suggest moving away from the "Automotive" quality sensors and using an industrial pressure transducer. That gives you a couple things... 1. More reliable 2. Extreme accuracy 3. Rugged design The cost isn't much more than the standard GM 3 bar sensors. I've used similar sensors for monitoring tranny line pressure and other parameters. I'll try to do a little digging and find a couple sources for you to check out. Charles Brooks Mid-Atlantic Speed Shop http://www.massmotorsports.com - ----- Original Message ----- From: Steve Leonard To: Sent: Tuesday, February 08, 2000 9:01 AM Subject: 3 Bar GM sensor > > We are building a ProMod Kawasaki Funny Bike (6.75ET's @200mph), 1425cc, > Turbo, with No2. We are using a Hahn Race Craft EFI that uses a standard GM > 5-volt MAP sensor. I plan on running 35-40lbs boost, my problem is these GM > sensors are limited to 3-bar applications. Anybody have a source or Idea on > how we can find a 4-bar sensor..... > > cheers > Steve L. > > > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > > -------------------------------------------------------------------------- - -- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org > > - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 11:21:24 EST From: Fisystems@xxx.com Subject: Re: bypass valve Just wondering if anyone could help me locate a bypass valve used on Vortex superchargers. If I remember right it has a bosch part number and is black plastic with a 1/2" inlet/outlet with one vacuum line. If I had the part number or application I could just order the valve instead of the whole bypass kit from Vortek. Thanks Ken Fisystems@xxx.com - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 08 Feb 2000 09:05:41 -0800 From: Doug Dayson Subject: Re: Bill...not sure who you intended this for...but herre you go... SBC 882 heads are thinwall smog castings with a smog-compromised intake runner (it's partially blocked in a attempt to promote swirl)...as they're prone to cracking in-between the valve seats they are unfortunately not very desirable... The 993 head is probably the best open-chamber (76cc) iron SBC head in that it's a thickwall casting and it has non-smog intake runners... A dated but good book would be "How to Build and Modify SBC Cylinder Heads" by "David Vizard"... Doug Bill Hoffman wrote: > > Did you ever find the information you were looking for on the 882 heads? I > have them on my Corvette and was trying to find the same information. I > would greatly appreciate it if you could share any information that you > have. Thanks, Bill > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > > ---------------------------------------------------------------------------- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 12:24:47 -0500 From: "SPECTRO COATING CORP." Subject: Re: bypass valve The one you are looking for is OE for a 16valve Saab 2.3L turbo application - say '92 up or so - I can try to find the number but that should be a start. > Just wondering if anyone could help me locate a bypass valve used on Vortex > superchargers. If I remember right it has a bosch part number and is black > plastic with a 1/2" inlet/outlet with one vacuum line. If I had the part > number or application I could just order the valve instead of the whole > bypass kit from Vortek. > Thanks > Ken > Fisystems@xxx.com - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 18:40:53 +0100 From: =?iso-8859-1?Q?J=F6rgen_Karlsson?= Subject: Material in turbo headers. I will have to do them myself and I have been a plumber before so I would prefer to bend them with brute force and a welding torch. I should use 38mm tubes but 42 gives me more choice in material, it probably keep them a bit cooler too. Stainless steel is hard for me to work with, I'm no TIG welder. I heard from someone that CrMo tubes usually used for roll cages is a good choice. I get ordinary seemless high pressure tubes for free, I think that they have some strange composition, they don't rust half as much as ordinary tubes. My consern is the peeling of the material that I have seen on tubes exposet for high temp for a long time. Since I move the turbo charger a bit and also change from KKK to Garret I will _have_ to do the work my self. I can't send it away. Jörgen Karlsson Gothenburg, Sweden. - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 23:33:24 +0530 (IST) From: VAIDYA AJAY ASHOK Subject: Guidance:I am a beginer !! Hi all, I want to learn a Electronic Fuel Injection. I am a beginer in this field, that is why i fail to get the all the stuff in this mailing list.which books or sites would you like to suggest for me to read. I don't have any sound background of microcontrollers.I am doing my Master's Degree in Design Engg.( under mechanical department) at Indian Institute of Technology Bombay,India.Here i am working on the "Electronic fuel injection" I need more informations regarding detail for single or multi port injections, What is microcontroller used ? How they worked ? if you have the book about Design Electronic Fuel Injection, include Hardware and Software, would you please tell me. Thanks for your attention, please email me back. Keep mailing. Your's Ajay Vaidya. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I think ["HENCE"],I can "DO" it !!! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * LOCAL ADDRESS * * GLOBAL ADDRESS * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ VAIDYA AJAY ASHOK C/O ASHOK B. VAIDYA. M.TECH. [DESIGN] (MECHANICAL ENGG.) PLOT NO.13-B, 273/1, HOSTEL NO : H-1 DR. ANTROLIKAR NAGER -1, ROOM NO : 104 BEHIND KINARA HOTEL, PHONE NO : External: 5781017 SOLAPUR :413003. IIT-BOMBAY,POWAI,Mumbai-76. MAHARASHSTRA. POWAI,Mumbai 400076 India. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *E-MAIL* aavaidya@xxx.in ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 22:47:12 +0100 From: "Espen Hilde" Subject: Re: Material in turbo headers. Hi! I have made turbo manifolds from prebent 90degrees steam tubes and straights. It works great. I would have liked to take same length straight tubes and weld the openings and fill it with sand ,bumb it so it settles .Use heat and bend away.If you have been a plumber you probably know this prosess..... Espen - ---------- > From: Jörgen Karlsson > To: DIY_EFI Mailinglist > Subject: Material in turbo headers. > Date: 8. februar 2000 18:40 > > I will have to do them myself and I have been a plumber before so I would > prefer to bend them with brute force and a welding torch. I should use 38mm > tubes but 42 gives me more choice in material, it probably keep them a bit > cooler too. > > Stainless steel is hard for me to work with, I'm no TIG welder. I heard from > someone that CrMo tubes usually used for roll cages is a good choice. I get > ordinary seemless high pressure tubes for free, I think that they have some > strange composition, they don't rust half as much as ordinary tubes. My > consern is the peeling of the material that I have seen on tubes exposet for > high temp for a long time. > > Since I move the turbo charger a bit and also change from KKK to Garret I > will _have_ to do the work my self. I can't send it away. > > Jörgen Karlsson > Gothenburg, Sweden. > > - ---------------------------------------------------------------------------- > To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) > in the body of a message (not the subject) to majordomo@xxx.org - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 17:37:29 -0800 From: "Walter Sherwin" Subject: Holley TBI Injectors VS Pressure Shane; The Holley B2 TBI injectors do not typically like a lot of static fuel pressure. I have never tested the #65's myself, but I have extensively tested the #85's on my flow bench. According to what I've read & heard, both are constrained by the same limitations. The basic problem is associated with the fact that the internal ball and pintle rod are magnetically "coupled", and that the internal hydraulic differential forces (a product of increased fuel pressure) can become sufficient to separate the two elements and cease flow entirely. With a 4/1 amp driver, the #85's are happy puppies at 15psig when hot. Roughly 18psig is the upper hot operating limit, with same. Cold, on the bench, the #85s will operate irregularly above 20'ish psig and will completely shut-off at 26psig. Not quite the same injector, but food for thought........ Walt. >Date: Mon, 7 Feb 2000 22:31:00 -0600 >From: "Shane Buss" >Subject: Fuel Pressure with Holley Injectors > >I'm running very lean with 65# injectors on my holley 670cfm tbi unit... >Im running about 16psi with the stock fuel pump... > >How high can i effectively turn up the pressure? I heard with the chrysler >injectors holley uses above 17-20psi could cause problems... > >How high is the stock fuel pump good for also.. >Thanks, >Shane - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 08 Feb 2000 04:58:40 From: "Lawrence E. & Cathy R. Mayfield" Subject: F150 5.0L Knock Sensor Is the knock sensor as used on the F150 adaptable to any of the other Ford EECs? Just wondering.. mayf L.E. Mayfield 124 Maximillion Drive Madison, Al. 35758-8171 ph: 1-256-837-1051 http://home.hiwaay.net/~lemayf lemay@xxx.net Sunbeam Tiger, B9471136 Sunbeam Alpine Bonneville Land Speed Racer, '66 Hydroplane Drag Boat (390 FE) - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 17:35:02 -0600 From: "Shane Buss" Subject: Re: Holley TBI Injectors VS Pressure about about the 80# injectors? i'm about to get some of those - -----Original Message----- From: Walter Sherwin To: diy_efi@xxx.org> Date: Tuesday, February 08, 2000 4:45 PM Subject: Holley TBI Injectors VS Pressure >Shane; > >The Holley B2 TBI injectors do not typically like a lot of static fuel >pressure. I have never tested the #65's myself, but I have extensively >tested the #85's on my flow bench. According to what I've read & heard, >both are constrained by the same limitations. The basic problem is >associated with the fact that the internal ball and pintle rod are >magnetically "coupled", and that the internal hydraulic differential forces >(a product of increased fuel pressure) can become sufficient to separate the >two elements and cease flow entirely. > >With a 4/1 amp driver, the #85's are happy puppies at 15psig when hot. >Roughly 18psig is the upper hot operating limit, with same. Cold, on the >bench, the #85s will operate irregularly above 20'ish psig and will >completely shut-off at 26psig. > >Not quite the same injector, but food for thought........ > > >Walt. > > > > >>Date: Mon, 7 Feb 2000 22:31:00 -0600 >>From: "Shane Buss" >>Subject: Fuel Pressure with Holley Injectors >> >>I'm running very lean with 65# injectors on my holley 670cfm tbi unit... >>Im running about 16psi with the stock fuel pump... >> >>How high can i effectively turn up the pressure? I heard with the chrysler >>injectors holley uses above 17-20psi could cause problems... >> >>How high is the stock fuel pump good for also.. >>Thanks, >>Shane > > >--------------------------------------------------------------------------- - - >To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) >in the body of a message (not the subject) to majordomo@xxx.org > > - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 08 Feb 2000 19:16:52 -0500 From: Seth Subject: idea for an enclosure for efi_332 ecu Hello, I was thinking about ECU enclosures for this project, and put up a quick web page with an idea. Anyways, I was thinking of building someting along the lines of what's on the page (CNC machined box with o-ring seals). I was wondering if anyone has done a group build/buy for enclosures? If not, I'll investigate it. If this has already been done, (I am new to the group) could someone drop me a line to that effect? TIA Seth - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 08 Feb 2000 19:18:20 -0500 From: Seth Subject: [Fwd: idea for an enclosure for efi_332 ecu] This is a multi-part message in MIME format. - --------------7D88A7AC5E08BCE2EAB9CFCF Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit whoops! here's the link http://people.ne.mediaone.net/sethea/ecuhousing.html - -Seth - --------------7D88A7AC5E08BCE2EAB9CFCF Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Mozilla-Status2: 00000000 Message-ID: <38A0B1F1.48589263@xxx.net> Date: Tue, 08 Feb 2000 19:16:52 -0500 From: Seth Reply-To: sethea@xxx.net X-Mailer: Mozilla 4.7 (Macintosh; U; PPC) X-Accept-Language: en MIME-Version: 1.0 To: diy_efi@xxx.org Subject: idea for an enclosure for efi_332 ecu References: <20000208123425.89353.qmail@xxx.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello, I was thinking about ECU enclosures for this project, and put up a quick web page with an idea. Anyways, I was thinking of building someting along the lines of what's on the page (CNC machined box with o-ring seals). I was wondering if anyone has done a group build/buy for enclosures? If not, I'll investigate it. If this has already been done, (I am new to the group) could someone drop me a line to that effect? TIA Seth - --------------7D88A7AC5E08BCE2EAB9CFCF-- - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 19:19:36 -0600 From: "Shane Buss" Subject: Re: Hey guys This is a multi-part message in MIME format. - ------=_NextPart_000_0054_01BF7269.6FD62160 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable my ecm is a 746.. what about those? -----Original Message----- From: nacelp To: diy_efi@xxx.org> Date: Sunday, February 06, 2000 3:32 PM Subject: Re: Hey guys One of the major problems is using the 700R4 itself. That 3.06 1st = gear is great to get a 305 TBI to move but is a PITA for a HiPo 350. If you look real close, you'll find you hanging a gear change = right at the 60' mark, and might be out of rpm in the traps. For various reasons I going to a 200R4. If you read programming 101, and tuning.doc.. You'll have a good = understanding of doing your own chips and software is available from the = tunercat for doing the editing for a 747 ecm for free. There are lots = of answers here, and most been answered, just looking around while give = you a great understanding of where your at. Grumpy Hey guys im new to the list and just wanted to introduce myself.. I have a 92 Firebird 355 TBI unit with the following mods: Holley 670CFM 2bbl 65# injectors projection unit Holley Porjection 2bbl manifold 214/224 479/498 cam 3.73 posi headers, flowmster exhaust msd 6a ignition custom chip by howell-efi Right now im running 13.6 on 225/15 crap tires.. i have slicks but = my 700r4 is dying and couldnt hold up. I'm also running a totally stock = 700r4 and TQ with 120k miles on them. I'm using around 15.5 psi of fuel pressure but keep getting told = thats WAY to low.. my trap is under 100 with a 13.6... stock fuel pump shane - ------=_NextPart_000_0054_01BF7269.6FD62160 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
my ecm is a 746.. what about those?
-----Original = Message-----
From:=20 nacelp <>
To: = <>
Dat= e:=20 Sunday, February 06, 2000 3:32 PM
Subject: Re: Hey=20 guys

One of the major problems = is using=20 the 700R4 itself.  That 3.06 1st gear is great to get a 305 TBI = to move=20 but is a PITA for a HiPo 350.
  If you look real = close, you'll=20 find you hanging a gear change right at the 60' mark, and might be = out of=20 rpm in the traps.
  For various = reasons I going to=20 a 200R4.
  If you read = programming 101,=20 and tuning.doc..  You'll have a good understanding of doing = your own=20 chips and software is available from the tunercat for doing the = editing for=20 a 747 ecm for free.  There are lots of answers here, and most = been=20 answered, just looking around while give you a great understanding = of where=20 your at.
Grumpy
 
 
 
Hey guys im new to the list and just wanted to = introduce=20 myself..
I have a 92 Firebird 355 TBI unit with the = following=20 mods:
Holley 670CFM 2bbl 65# injectors projection=20 unit
Holley Porjection 2bbl manifold
214/224 479/498 cam
3.73 posi
headers, flowmster exhaust
msd 6a ignition
custom chip by howell-efi
 
Right now im running 13.6 on 225/15 crap tires.. = i have=20 slicks but my 700r4 is dying and couldnt hold up. I'm also running a = totally=20 stock 700r4 and TQ with 120k miles on them.
 
I'm using around 15.5 psi of fuel pressure but = keep=20 getting told thats WAY to low.. my trap is under 100 with a 13.6... = stock=20 fuel pump
 
shane
- ------=_NextPart_000_0054_01BF7269.6FD62160-- - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ Date: Tue, 8 Feb 2000 22:41:53 -0300 From: "Diego Martin Monteverde" Subject: Haltech vs. Electromotive vs. Wolf 3D vs ??? Hello, I'm trying to learn about the different commercial "programmable" electronic management systems that are currently on the market. I'm interested in those that are capable of both injection ans spark control. My idea is to know about the different features that they offer, strong and weak points. Up to now, I discovered three different units: Haltech, Electromotive and Wolf 3D. What I'm asking to the list are the different experiences that the members may have about these three systems or (I suppose) the lot of other ones that exist, known pros and cons of them or amy info in this way. I will appreciate any info that the group could give me. Thanks and regards, Martin - ---------------------------------------------------------------------------- To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes) in the body of a message (not the subject) to majordomo@xxx.org ------------------------------ End of DIY_EFI Digest V5 #57 **************************** 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".