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Cobra Forums
2013-14 Shelby GT500
Tune (what exactly does it do?)
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<blockquote data-quote="Norton" data-source="post: 16942047" data-attributes="member: 145307"><p>The mods you have require a tune. Just because "the car drives great" does not mean it's tuned correctly or even safely. In your position, I'd minimize driving and stay out of boost until I consult a trusted tuner who can datalog the car to confirm it's tuned both correctly and safely. If a local one is not available, going with Lund, Venomous, VMP, etc is probably your best bet. </p><p></p><p>FWIW, NGK TR7-IX (3690) plugs, recommended by my tuner, are what I (and many others) run. With a stock pulley, you shouldn't exceed 15psi of boost, for which I'd gap them to 0.030". (The 0.028" gap recommended is more appropriate for a car boosting up to ~19psi.)</p></blockquote><p></p>
[QUOTE="Norton, post: 16942047, member: 145307"] The mods you have require a tune. Just because "the car drives great" does not mean it's tuned correctly or even safely. In your position, I'd minimize driving and stay out of boost until I consult a trusted tuner who can datalog the car to confirm it's tuned both correctly and safely. If a local one is not available, going with Lund, Venomous, VMP, etc is probably your best bet. FWIW, NGK TR7-IX (3690) plugs, recommended by my tuner, are what I (and many others) run. With a stock pulley, you shouldn't exceed 15psi of boost, for which I'd gap them to 0.030". (The 0.028" gap recommended is more appropriate for a car boosting up to ~19psi.) [/QUOTE]
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2013-14 Shelby GT500
Tune (what exactly does it do?)
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