FI retrofit, it's done!!! |
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FI retrofit, it's done!!! |
toon1 |
May 17 2007, 07:31 PM
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#1
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
I've been working on retrofitting newer fuel injectors for the 914. My goal was to find an injector that can utilize as many of the stock parts as possible.
I came up with a inj. off a 96 forn escort 1.8l motor. One comment is needed, this will only work with an aftermarket FI system s these inj. are HIGH inpedence. This setup gives the ability to use higher fuel pressure, 44psi . It has a lower flow rate than the stock inj.. so the pulse widths will be longer and should give a little better idle quality. these are disc style rather than pintle( stock). fuel atomization will be much better giving a cleaner, more efficiant burn. The length of the inj. where shorter than stock so I added an O ring to make up the difference. The plastic tips are different ,I cut them off and put the tip of the stock inj. on the new inj., fit perfect. now the stock tip O ring can be used. the fuel rail was machined to tolerance for the top O ring seal. And I made a bracket to support the fuel rail from vibration and also keeping it from popping off the top of the inj. Here's the setup assembled. enjoy Attached image(s) |
ottox914 |
Nov 29 2007, 12:30 PM
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#2
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The glory that once was. Group: Members Posts: 1,302 Joined: 15-December 03 From: Mahtomedi, MN Member No.: 1,438 Region Association: Upper MidWest |
Its not that hard, read things over 100 times, know it like the back of your hand, then start ripping and re-doing. If you've done it 100 times over in your mind, it'll go much better in the real world. And then you'll STILL find better ways to do some parts of the project once you get your hands dirty. I can't believe I just quoted myself... but its true, read it, learn it, live it, love it, then DO IT! This CAN be done by the average shade tree mechanic, but you need to be willing to invest the time to learn how and why things work the way they do. You don't need to understand the programming of how the SDS system crunches the input signals to determine how much fuel to squirt, but you DO need to have a feel and understanding of whats going on with your motor, and how the changes you make will affect it. I'm not the most computer literate person on the planet, and I have learned when someone says "its plug and play, its just that easy!" it won't be. The SDS guys hide nothing, make only promises they can keep, and make things as easy as they can short of doing it all for you. Your success or failure is up to you. |
Ray Warren |
Nov 29 2007, 04:15 PM
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#3
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Member Group: Benefactors Posts: 415 Joined: 1-October 03 From: Canada Member No.: 1,214 Region Association: None |
Its not that hard, read things over 100 times, know it like the back of your hand, then start ripping and re-doing. If you've done it 100 times over in your mind, it'll go much better in the real world. And then you'll STILL find better ways to do some parts of the project once you get your hands dirty. I can't believe I just quoted myself... but its true, read it, learn it, live it, love it, then DO IT! This CAN be done by the average shade tree mechanic, but you need to be willing to invest the time to learn how and why things work the way they do. You don't need to understand the programming of how the SDS system crunches the input signals to determine how much fuel to squirt, but you DO need to have a feel and understanding of whats going on with your motor, and how the changes you make will affect it. I'm not the most computer literate person on the planet, and I have learned when someone says "its plug and play, its just that easy!" it won't be. The SDS guys hide nothing, make only promises they can keep, and make things as easy as they can short of doing it all for you. Your success or failure is up to you. This pretty much describes me and what I did. I installed one (fuel only) about 2 years ago. Car starts, runs and drives great. |
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