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2015+ S550 Mustangs
5.0L Coyote V8 Engine Modification/Discussion
Problems with surging and driveability - datalog attached
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<blockquote data-quote="hatched91" data-source="post: 15682464" data-attributes="member: 77664"><p>The issue I have with a dyno tune, is that the car should run reasonably smoothly from the factory. It may not have the absolute best power, but driveability shouldn't be an issue with a completely bone stock car....especially intermittent driveability issues. The other S550s I have driven do not seem to have these issues. Even at idle, you can feel the intermittent misfire/stumble of the motor. </p><p></p><p>Here is another thread of someone with the same concerns about their car:</p><p><a href="https://themustangsource.com/forums/f806/5-0-sputter-hesitation-538243/" target="_blank">https://themustangsource.com/forums/f806/5-0-sputter-hesitation-538243/</a></p><p></p><p>I also have the same issues as this gentleman:</p><p><a href="http://www.mustangevolution.com/forum/f393/t369851/" target="_blank">http://www.mustangevolution.com/forum/f393/t369851/</a></p><p></p><p>The only time I have seen a tune help fix driveability issues on a stock car, is with the turbo Subaru cars (wrx/sti). Subaru was notorious for leaning out their turbo cars to meet emissions standards....a tune seemed to fix these driveability issues.</p><p></p><p>I think a dyno-tune would be most likely to mask the issue, not solve it. It seems like this is an issue with poor wiring connections, or a failing sensor/part.</p></blockquote><p></p>
[QUOTE="hatched91, post: 15682464, member: 77664"] The issue I have with a dyno tune, is that the car should run reasonably smoothly from the factory. It may not have the absolute best power, but driveability shouldn't be an issue with a completely bone stock car....especially intermittent driveability issues. The other S550s I have driven do not seem to have these issues. Even at idle, you can feel the intermittent misfire/stumble of the motor. Here is another thread of someone with the same concerns about their car: [URL]https://themustangsource.com/forums/f806/5-0-sputter-hesitation-538243/[/URL] I also have the same issues as this gentleman: [URL]http://www.mustangevolution.com/forum/f393/t369851/[/URL] The only time I have seen a tune help fix driveability issues on a stock car, is with the turbo Subaru cars (wrx/sti). Subaru was notorious for leaning out their turbo cars to meet emissions standards....a tune seemed to fix these driveability issues. I think a dyno-tune would be most likely to mask the issue, not solve it. It seems like this is an issue with poor wiring connections, or a failing sensor/part. [/QUOTE]
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2015+ S550 Mustangs
5.0L Coyote V8 Engine Modification/Discussion
Problems with surging and driveability - datalog attached
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