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SVT Shelby GT500
5.4L tuning / mod questions
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<blockquote data-quote="XP900" data-source="post: 16686995" data-attributes="member: 199546"><p>VMP removed a lot of their older information about their GEN2R superchargers from their web site!</p><p>Not sure why and I should have printed it all out.</p><p></p><p>What is the safe boost limit with 93 octane using at near sea level? I thought it was 18lbs on a stock motor?</p><p></p><p>Let's say I have a 2.5" pulley (using their adjustable idler pulley and no slippage), if I was at 17 and installed the 2.4 to get to 18 would changing that pulley really require a retune? If I recall a .1" pulley change was worth 1 lb of boost on the Gen2r.</p><p></p><p>Next question: Is there any reason for a retune check simply changing out a set of injectors with the same exact manufacturers model?</p><p></p><p>If you changed injectors - like a 1000cc to the Ford 56 lbs, I suspect it would require a retune but would it be driveable without getting into boost?</p></blockquote><p></p>
[QUOTE="XP900, post: 16686995, member: 199546"] VMP removed a lot of their older information about their GEN2R superchargers from their web site! Not sure why and I should have printed it all out. What is the safe boost limit with 93 octane using at near sea level? I thought it was 18lbs on a stock motor? Let's say I have a 2.5" pulley (using their adjustable idler pulley and no slippage), if I was at 17 and installed the 2.4 to get to 18 would changing that pulley really require a retune? If I recall a .1" pulley change was worth 1 lb of boost on the Gen2r. Next question: Is there any reason for a retune check simply changing out a set of injectors with the same exact manufacturers model? If you changed injectors - like a 1000cc to the Ford 56 lbs, I suspect it would require a retune but would it be driveable without getting into boost? [/QUOTE]
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5.4L tuning / mod questions
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