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L67 IPW questions
This is a discussion on "L67 IPW questions" within the Supercharged Engines forums. This forum, and the thread "L67 IPW questions "are both part of the Engine Specific category;
Devilsown Methanol Alcohol Water Injection
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L67 IPW questions
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12-28-2007
| #1 (permalink) |
| Alcohol Water Injection Join Date: Apr 2006
Posts: 96
|  L67 IPW questions
Really dumb/newbish question, but how does the PCM read the IPWs(injector pulse widths)? Is it at the point of the injectors spraying, point of fuel entering the combustion, or after it leaves the exhaust valves? Reason im asking is because since im running alcohol, my IPWs are spiking to 21mS on stock injectors with the 3.2” pulley running 18* of timing. My wb is also at 10.5 but after talking with a few alcohol users, that’s where I should be at. I asked a few members and they say usually when running 3.0” pulley is when the stock injectors are maxxed. If the IPWs are read at the injectors spraying then my tune is bad and needs a better tune.
__________________ 98GTP The Purple People Eater best ET=13.19 best trap=105.36 1.9 mod rockers 3.2"-Headers-2.5"Pipes-stock muffs LS1M/HappyKnob@18* of Timing/PT AL103@0.040 alcohol w/m3 nozzle an Controller 180Dr T-Stat, 4"FWI/PortedTB/PnP M90 PLX-SMR WBo2 Fuel Pump Rewire, AFC 2.2 |
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