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Cobra Forums
2013-14 Shelby GT500
looking for around 100hp
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<blockquote data-quote="black03" data-source="post: 12921316" data-attributes="member: 4037"><p>Definitely looking forward to assisting you. In regards to the pulley it really depends on which route you prefer to go. The upper won't make as much boost or power/tq as the 10% lower but it still makes excellent power for the money. Another good thing about the lower is that you'll get much better belt wrap and prevent belt slip. The smaller you go with the upper pulley leaves room for belt slip. I have already spoken with Lund Racing and doing a lower with 91 octane isn't an issue. However a 10% is the most you'll want to run. The 15% will be too much for that grade of fuel. </p><p></p><p>Let me know if you have any other questions.</p><p></p><p>Thanks,</p><p>Jared</p></blockquote><p></p>
[QUOTE="black03, post: 12921316, member: 4037"] Definitely looking forward to assisting you. In regards to the pulley it really depends on which route you prefer to go. The upper won't make as much boost or power/tq as the 10% lower but it still makes excellent power for the money. Another good thing about the lower is that you'll get much better belt wrap and prevent belt slip. The smaller you go with the upper pulley leaves room for belt slip. I have already spoken with Lund Racing and doing a lower with 91 octane isn't an issue. However a 10% is the most you'll want to run. The 15% will be too much for that grade of fuel. Let me know if you have any other questions. Thanks, Jared [/QUOTE]
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2013-14 Shelby GT500
looking for around 100hp
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