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Speed Density???

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Old Jul 3, 2006 | 07:20 PM
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LS144
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Default Speed Density???
Anyone know anything about the speed density tuning? I know you eliminate the MAF. But anything else? Is it a good tune? Ive heard it mentioned a few times but didnt really know what it was and all.
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Old Jul 4, 2006 | 12:14 AM
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You've got the important part correct. SD eliminates the MAF values from the fueling equation, leaving you with fuel and VE.

SD works, but must be checked periodically as environmental conditions affect it more so that running with a MAF.
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Old Jul 4, 2006 | 12:22 AM
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from what ive understood its mainly used for big cam cars, i have SD and i love it over the previous tune
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o2s drop to [0] and ecm goes open loop,




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