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Join Date: Jun 2008
Posts: 477
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xdi ignition settings.
i'm converting from a hpv to a xdi ignition using a map sensor and was wondering what the intial setting should be approx. i got a mostly stock3.3ltr, k27 running .8bar boost, b@b headers and exhaust, larger intercooler. if i use the settings i already have with the hpv in the car now what changes if any should i make to the settings on the xdi with the map sensor? thanks in advance(no pun intended), mick
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05-23-2011, 04:01 PM
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Not sure I am clear on what you are asking. If you are upgrading to XDi you can find the installation manual here: Home - Electromotive Engine Controls
I am in the process of installing their TEC gt, which I believe uses the same crank sensor type. If so, then the initial setting is to install the sensor wheel so the missing teeth on the 58 (60-2) sensor wheel are at Z1 on #1 TDC, and the trailing edge of the 11th tooth are just under the crank sensor. I hope I am being helpful, but not sure. Is this the setting you are asking about?
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Emery 1988 930 coupe - Silver Metallic TurboKraft 3.3L 8:1 CR, SuperSC Cams, GT35R, B&B Headers, TK intercooler, Tial WG, ARP, tecGT based phased sequential EFI & ignition, Wevo shifter/coupler, ... 
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05-23-2011, 04:36 PM
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http://electromotive-inc.com/pdf_files/xdi_manual.pdf
Page 26 discusses the use of a MAP sensor and how the software deals with it.
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Emery 1988 930 coupe - Silver Metallic TurboKraft 3.3L 8:1 CR, SuperSC Cams, GT35R, B&B Headers, TK intercooler, Tial WG, ARP, tecGT based phased sequential EFI & ignition, Wevo shifter/coupler, ...
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05-23-2011, 04:38 PM
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Location: Louisville,Ky
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Set the INIT knob to "0" 3000 knob to 20, limiter to 6800 and that should give you a good baseline.
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05-23-2011, 05:32 PM
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thanks lowfat, that's what i was after. sorry for being a little vague guys. what about the 8,000rpm knob setting?
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05-24-2011, 12:22 PM
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8000 knob is set at 0 total of -28-29 degrees at full throttle. Hope this helps....Ben
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05-24-2011, 03:07 PM
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if i set the intial knob at 0 and the 3000 knob at 20 and the 8000 knob at 0 wouldn't this give me a total of 20? i thought you add the intial to the the 3000 then what you set the 8000 at is subtracted from that total. i'm kind of confused.
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05-24-2011, 03:23 PM
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The system has 9-10 degrees at idle built in. I had received my set up info from Clewitt when I did the initial install.Re check the settings with a volt meter after the car is running just to be sure.Always remember the built in advance when making adjustments, but this is how my car has been running for 3 years now with no problems.Let me know if there is anything else.....Ben
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05-24-2011, 04:35 PM
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ben, that was the piece to the puzzle i was missing. makes sense to me now. thanks again.
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05-24-2011, 04:45 PM
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Glad to help, hope you get her going soon.
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05-25-2011, 08:47 AM
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