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Fox-Body Cobras
A9L swap, ?'s
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<blockquote data-quote="93Cobra#2771" data-source="post: 1605999" data-attributes="member: 4599"><p>Bryan - power adder guys will often get lean initial tip in during throttle transitions. There is also a 2 sec delay (on A9L) and 8 sec delay (X3Z) for the computer to change to Open Loop during <em>high load/not WOT conditions</em>. In other words, if you like to lug around and pull hills in 5th gear at low speeds/low rpms, and slight blower boost, then you can easily go leaner than the eec can correct (it can't make the changes quick enough). It's all about throttle tip in values. And a car with efficient h/c/i will aggravate the condition. The more efficient the combo, the more it will need during tip in.</p><p></p><p>Lee - not necessarily. Timing values are very soft on both eec's, and the cobra is hindered by its extra rich WOT settings. I noticed and immediated difference in my car when I first chipped it - much stronger on the top end, mainly due to the leaner commanded a/f.</p></blockquote><p></p>
[QUOTE="93Cobra#2771, post: 1605999, member: 4599"] Bryan - power adder guys will often get lean initial tip in during throttle transitions. There is also a 2 sec delay (on A9L) and 8 sec delay (X3Z) for the computer to change to Open Loop during [i]high load/not WOT conditions[/i]. In other words, if you like to lug around and pull hills in 5th gear at low speeds/low rpms, and slight blower boost, then you can easily go leaner than the eec can correct (it can't make the changes quick enough). It's all about throttle tip in values. And a car with efficient h/c/i will aggravate the condition. The more efficient the combo, the more it will need during tip in. Lee - not necessarily. Timing values are very soft on both eec's, and the cobra is hindered by its extra rich WOT settings. I noticed and immediated difference in my car when I first chipped it - much stronger on the top end, mainly due to the leaner commanded a/f. [/QUOTE]
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A9L swap, ?'s
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