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2013-14 Shelby GT500
Help with a tune
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<blockquote data-quote="Jam421" data-source="post: 16619014" data-attributes="member: 110985"><p>I heard SCT took away allowance for some tuners to make changes to our SCT X4 . Hope Not!</p><p>If you do the TB/Plenum swap at home then drive it to the shop...why bother to do a redline vitals check on the old tune? They'll start with a base tune and you'll drive home happy for about $500.</p><p>Tuned CFM 67 TB & O-Sized plenum should be good for 20-30rwhp but also a nicer power curve. O-Sized plenums claim 10-15hp when port matched. At home it's a 20 minute Dremel job to slightly port match side edges of the SC opening. With plenum mocked up use a Sharpee to define the difference then check smoothened transition with your fingers as you move along. * Be sure to pack the SC opening with a towel before porting! Shop vac does the clean up outside when done.</p><p>My 2.4 upper had some belt slippage instantly solved with a Metco pulley . Also, tuner should be able to compliment the 170* stat with a lower Fan On setting.</p></blockquote><p></p>
[QUOTE="Jam421, post: 16619014, member: 110985"] I heard SCT took away allowance for some tuners to make changes to our SCT X4 . Hope Not! If you do the TB/Plenum swap at home then drive it to the shop...why bother to do a redline vitals check on the old tune? They'll start with a base tune and you'll drive home happy for about $500. Tuned CFM 67 TB & O-Sized plenum should be good for 20-30rwhp but also a nicer power curve. O-Sized plenums claim 10-15hp when port matched. At home it's a 20 minute Dremel job to slightly port match side edges of the SC opening. With plenum mocked up use a Sharpee to define the difference then check smoothened transition with your fingers as you move along. * Be sure to pack the SC opening with a towel before porting! Shop vac does the clean up outside when done. My 2.4 upper had some belt slippage instantly solved with a Metco pulley . Also, tuner should be able to compliment the 170* stat with a lower Fan On setting. [/QUOTE]
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2013-14 Shelby GT500
Help with a tune
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