Tuning EMS, Fuel and Ignition |
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Tuning EMS, Fuel and Ignition |
McMark |
Oct 7 2004, 12:23 PM
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#1
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I'm installing the beta KitCarlson FI and I'm turning my attention to tuning. I have access to a wide band O2 sensor setup for tuning in the FI part of the setup, but I'm not exactly sure how to optimize the ignition. My initial assumption is to install an EGT gauge. I would think this coupled with knowing the AFR would clue me into the ignition. There are so many factors I can modify that I'm having trouble keeping it all straight. Help me figure out what I need to do to get it well tuned. (IMG:style_emoticons/default/pray.gif)
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lapuwali |
Oct 7 2004, 12:52 PM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
I would start with a curve taken from the Mallory dizzy (look on the Mr. Gasket site, it can be found there) with grey/grey springs installed. From there, adjusting the curve is trial and error, based on what you're trying to optimize FOR. If looking for mean best torque, you'll need a dyno. If looking for BSFC, you'll need a flowmeter and a dyno, or lots of time.
Me, I'm happy if the bloody thing runs w/o pinging. (IMG:style_emoticons/default/biggrin.gif) I know EGT goes up as the ignition is retarded from "optimal", but I don't know what it does when advanced from "optimal". Perhaps the lowest EGT w/o pinging? On the kit itself, how far is it from production quality, in your opinion? Better or worse than SDS? IMHO, Kit should include at least one person who's mechanically inclined, but has never fitted aftermarket EFI to an engine before, as a test. Leave them alone to figure it out for themselves, and only answer questions asked. That can tell you a lot about what needs to be included in the instructions. |
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