Grp A Coil - resistor
06-04-2007, 08:10 PM
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Grp A Coil - resistor
Do you keep the ballast resistor wired in when you fit a grp a coil?
06-04-2007, 08:20 PM
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06-04-2007, 08:22 PM
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better go remove it
06-04-2007, 10:49 PM
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it will work with one - but u will lose energy, bad move.
07-04-2007, 01:31 AM
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BALLAST RESISTOR???
07-04-2007, 01:57 PM
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There isn't one as std on an RST - urs will be fine.haz87
07-04-2007, 05:28 PM
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Its actually an Xr3i (mfi) that ive fitted the grp a coil to. So will this vary with needing the ballast or not
07-04-2007, 05:54 PM
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07-04-2007, 05:56 PM
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yer
07-04-2007, 05:58 PM
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it maybe that the std coil is a 9v one, the resistor is then bypassed when cranking to allow a better spark. The grp A needs the full 12v, so u don't need the resistor.
07-04-2007, 06:02 PM
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Superb! So the ballast is only there in ANY ignition setup to protect the coil yes?
07-04-2007, 06:18 PM
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yes, and no... on points systems it was sometimes used to limt current through them to stop them burning out.
07-04-2007, 06:20 PM
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Cheers for all the info rick, appreciated
07-04-2007, 06:22 PM
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np
07-04-2007, 06:38 PM
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Did an escort ever leave the factory with a ballast resistor
07-04-2007, 07:00 PM
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Its a ford ballast resistor and everything,lol so i assume so
07-04-2007, 07:06 PM
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that sounds like the rev counter supressor to me
07-04-2007, 07:08 PM
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07-04-2007, 07:09 PM
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Not a lot to be honest, the rev counter will work without it if you plug the loose ends together
07-04-2007, 07:11 PM
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Its a little black box with two wires coming off of it. One red and one bright green. Sound like a supressor then?
07-04-2007, 07:13 PM
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07-04-2007, 05:58 PM
