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ignition timing turbo engine
Hi
Looking for some information on what people run for ignition timing on turbo engines. I have a 3.3 turbo motor running twin plug with 8:1 compression. This is a race engine running 110 fuel. thanks Scott |
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03-17-2019, 03:18 AM
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Join Date: Jul 2009
Location: Ontario
Posts: 1,839
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EFI or CIS ? engine management? need more info on your build...
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87 930 GHL/Rarlyl8/Garretson/GT3582R/1 Bar/Wevo shift, mounts/Meth inj/LM-2/Custom Fuchs/Carrera intake manifold/Xtreme Carrera heads P&P/3.4/DR 993SS cams/ Mahl/Pauter/JE/Niresist/ARP/twin COP/8.25:1/KEP stage 2/twin tials/close 2,3,4th. MS3Pro Evo  500+ HP, BTSOMP Dyno
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03-17-2019, 12:47 PM
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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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03-17-2019, 02:05 PM
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Thanks for the link.
It's AEM infinity ECU, twin plug, coil on plug, two knock sensors, 3.2l intake, gt35 turbo, sc cams, .8 bar boost for now. Scott |
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03-19-2019, 01:37 PM
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Here is another link with some tables to help get you started:
How to calculate a base ignition table Every engine with mods is slightly different it seems, so you will need to find a way to get on a dyno or similar and tune WOT runs to maximize your curve for that high octane, without introducing knock. I do not think many of us run with 110 octane. I know that is why I cannot really help you. I run 93 octane.
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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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03-21-2019, 03:40 AM
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My approach, detailed in the second thread linked was to calculate the stock curve, figure out where the peaks and valleys are, and build a table that approximated the stock curve. That s/b enough to start, do checkouts, and get it to a dyno tuner.
That's my plan anyway
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'86 no-sunroof 930 coupe: Emissions removed, FrankenCIS controlling eWUR, lambda, COP ignition. Tial f46P 1.0 bar spring, SC cams, K-27/29, lightweight clutch, TK Longneck intercooler, RarlyL8 headers and dual-outlet hooligan '14 Jaguar XK-R: Bullet proof windscreen, rotating number plates (valid all European countries), martini mixer, whatever you do don't press this red button! |
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03-21-2019, 06:17 AM
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