http://www.mgexperience.net/member/scotabbott Scot Abbott's Journal en Fri, 20 Nov 2009 14:51:02 -0800 15 4227 http://www.mgexperience.net/journal/scotabbott/4227 Thu, 12 Nov 2009 06:37:12 -0800 Disclaimer: read and use this information at your own risk. This is a report of my experiences.<br /> <br /> Previously I described how I modified carbs using only the simplest tools. In this procedure I used a hole saw in a drill press. In this case I modified a 1.75 inch ZS carb body and I used a 1 3/4 inch hole saw from harbor freight. It gives an attractive result immediately.<br /> <br /> This is the procedure I used:<br /> <br /> <br /> Step 1 clamp (or affix in some fashion) carb body in drill press<br /> <br /> Step 2 Center the carb body so you can drill out the center with a hole saw.<br /> <br /> Step 3 Dress out the edge of the manifold side of the opening <br /> <br /> Step 4 Install Injector holder (usually with injectors in place)<br /> <br /> Step 5 Install cover which is a secondary retainer for the injectors <br /> <br /> Step 6 (optional) Declare visctory and take the rest of the day off. (humor)<br /> <br /> Pictures of the process and result are sho...<br /> 4209 http://www.mgexperience.net/journal/scotabbott/4209 Tue, 03 Nov 2009 21:17:53 -0800 Legal Disclaimer: The following is my opinion for which I hold no liability. Use this information at your own risk. It involves using pressurized flammable material which can cause injury to property, person, or death. You read this at your own risk and agree to not sue me for any information provided here or its influence on you.<br /> <br /> Modifying the 1.5 SU’s for “Bottom Up” EFI<br /> <br /> The 1.5 inch SU’s can retain a “stock look” and serve as throttle body injection devices when they are irreversibly modified. It greatly improves the air flow through the carburetor body. I have done this with 2 sets of mine. It can be done with carbs in very poor condition (e.g. sticky/stuck risers, loose throttle shafts, leaky floats, etc.). This is what I did:<br /> <br /> 1. I first removed the ‘dome’, bottom plate and the contents of the float bowl. I also removed all the other stuff from the outside of the carb. I left the throttle plate in place.<br /> <br /> 2. I drilled severa...<br /> 2284 http://www.mgexperience.net/journal/scotabbott/2284 Sun, 06 Apr 2008 20:02:11 -0700 Legal Disclaimer: The following is my opinion for which I hold no liability. Use this information at your own risk. It involves using pressurized flammable material which can cause injury to property, person, or death. You read this at your own risk and agree to not sue me for any information provided here or its influence on you.<br /> <br /> Modifying the 1.5 SU’s for “Bottom Up” EFI<br /> <br /> The 1.5 inch SU’s can retain a “stock look” and serve as throttle body injection devices when they are irreversibly modified. It greatly improves the air flow through the carburetor body. I have done this with 2 sets of mine. It can be done with carbs in very poor condition (e.g. sticky/stuck risers, loose throttle shafts, leaky floats, etc.). This is what I did, using only the simplest tools common to a household.<br /> <br /> <br /> 1. I first removed the ‘dome’, bottom plate and the contents of the float bowl. I also removed all the other stuff from the outside of the carb. I left the...<br /> 1682 http://www.mgexperience.net/journal/scotabbott/1682 Tue, 04 Sep 2007 20:59:55 -0700 An Inexpensive and Practical way to Retrofit EFI<br /> <br /> <br /> Legal Disclaimer: The following is my opinion for which I hold no liability. Use this information at your own risk. It involves using pressurized flammable material which can cause injury to property, person, or death. You read this at your own risk and agree to not sue me for any information provided here or its influence on you. <br /> <br /> <br /> Outline <br /> <br /> Foreword<br /> Personal Background<br /> Introduction<br /> General Problem and Challenges of Retrofitting<br /> Fuel Injection System <br /> Hydraulics<br /> Electronics<br /> The Simple Approach and Rationale<br /> Mounting the Injectors<br /> Adding Sensors and Computer<br /> Adding Fuel Pump, Regulators, etc.<br /> Practical Details<br /> Mounting Fuel injectors<br /> Type of Holders<br /> Ring<br /> Wire <br /> Bowl<br /> Flat<br /> Modifying the Injector...<br /> 1681 http://www.mgexperience.net/journal/scotabbott/1681 Tue, 04 Sep 2007 20:54:29 -0700 Legal Disclaimer: The following is my opinion for which I hold no liability. Use this information at your own risk. It involves using pressurized flammable material which can cause injury to property, person, or death. You read this at your own risk and agree to not sue me for any information provided here or its influence on you.<br /> <br /> I built a GT6 spitfire for my son and converted the twin carb 2 liter motor to fuel injection. It was my very first project in that area. The fuel injection conversion process had 4 main parts:<br /> <br /> adapting the carbs to hold fuel injectors<br /> adding a high pressure fuel system with regulated pressure<br /> setting it up for computer control<br /> Tuning it to run<br /> <br /> Part 1 Adapting the carbs<br /> <br /> <br /> The carbs can be adapted for EFI by adding holders for the injectors, and retaining the main carb structure to act as a TBI. The first holders add holders from the top of the carb, and are quick, easy and reversible. The seco...<br /> <br /><table border=0><tr> <td><img src="/journal/pictures/20/2452.thumb.jpg" width= height=><br><i>step1 trace pattern onto flat stockLR.jpg</i></td> </tr></table> <br />