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2015+ S550 Mustangs
5.0L Coyote V8 Engine Modification/Discussion
2015 GT base On3 TT(and NO regrets) build
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<blockquote data-quote="olaosunt" data-source="post: 15212281" data-attributes="member: 131643"><p>Since then ,we have figured out the issue.</p><p></p><p>The 02 sensors are fine and car makes even more boost per same duty cycle .</p><p></p><p>I also changed the plugs to brisk(had the NGK)</p><p></p><p>I have not been back on the dyno but have been able to get some logs of third gear pulls up to 6500 rom with E85 tune.</p><p></p><p>I just sent tuner logs of the second revision.</p><p></p><p>I had my daughter make a video of the boost gauge while I logged the latest tune revision up to 6500.</p><p> Not best quality as she was scared but you get a glimpse of how fast it pulls from 40-90.</p><p> I will see if I can post it on you tube</p><p></p><p> It made 14-15 psi on that pull with AFR in the 0.76 range, short term fuel trims were responding and timing was a consistent 16-17 above 4000 rpm.</p><p> It pulls harder than my Hellion car that makes 750 rwhp on race has and has run 10.3@133-134 with the pump tune.</p></blockquote><p></p>
[QUOTE="olaosunt, post: 15212281, member: 131643"] Since then ,we have figured out the issue. The 02 sensors are fine and car makes even more boost per same duty cycle . I also changed the plugs to brisk(had the NGK) I have not been back on the dyno but have been able to get some logs of third gear pulls up to 6500 rom with E85 tune. I just sent tuner logs of the second revision. I had my daughter make a video of the boost gauge while I logged the latest tune revision up to 6500. Not best quality as she was scared but you get a glimpse of how fast it pulls from 40-90. I will see if I can post it on you tube It made 14-15 psi on that pull with AFR in the 0.76 range, short term fuel trims were responding and timing was a consistent 16-17 above 4000 rpm. It pulls harder than my Hellion car that makes 750 rwhp on race has and has run 10.3@133-134 with the pump tune. [/QUOTE]
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5.0L Coyote V8 Engine Modification/Discussion
2015 GT base On3 TT(and NO regrets) build
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