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Efi to carb swap question

Old 04-13-2009, 02:45 AM
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joej8
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Default Efi to carb swap question

I recently switched my car from efi to carb. i noticed everywhere i read it said to change out the distributor and coil, ignition. i kept the one off my fuel injected car and havent noticed any problems. i was wondering if anyone could tell me what the benefit would be to switch to a different distributor and coil. or ignition
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Old 04-13-2009, 03:23 AM
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mstngsule68
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ur dizzy isnt advancing, your running 12deg every rpm its at. im in the process of writing up a swap sticky, look for it soon.
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Old 04-13-2009, 03:41 AM
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joej8
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how big of a difference will i notice if i switch to the vacuum advance set up? is it worth spending the money on a msd set up? and if so should i get the ignition or what should i buy? i know they make a kit
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Old 04-13-2009, 03:56 AM
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mstngsule68
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u can run what im using, its a ford hei dizzy, brand new with steel gear and a 5year warranty.... oh did i mention 60bucks? http://cgi.ebay.com/ebaymotors/FORD-...mZ260392292917
theres the link, and itll make it run how it should run. so yes u should do it
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Old 04-13-2009, 04:08 AM
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ok thanks alot man. what about the rest of the setup? coil or ignition any suggestions for it?
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Old 04-13-2009, 04:19 AM
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mstngsule68
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u put that dizzy in, hook a 12v wire to it, hook up ur spark plugs and a vacc adv. hose and ur done.
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Old 04-13-2009, 04:40 AM
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what about running locked timing? could i use that as an option till i get the vacuum advanced stuff hooked up?
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Old 04-13-2009, 04:46 AM
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eh you could, but id just do it right.
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Old 04-13-2009, 10:18 AM
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ahittz24
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I thought that timing advanced/retarded based off the pickup coil inside the stock dizzy? Therefore the stock one would be fine to use when changing from EFI to carb. You are only changing the way that fuel and air are being delivered. The computer changes the Pulse width of the injectors according the the RPM of the engine which is read from the reluctor ring inside the dizzy. So in theory using the EFI Dizzy with a carb would work as long as you retain the stock ECU.
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Old 04-13-2009, 11:08 AM
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grabbem88
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what is the ecu doing when nothing is hooked up that the ecu relies on to go through the fuel/spark tables?


you can mechanically "lock" the timing and just leave it,cause the ecu is basically useless at this point anyway's
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