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Cobra Forums
2013-14 Shelby GT500
2013 GT500 black upper pulley?
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<blockquote data-quote="rdsnk46" data-source="post: 12297478" data-attributes="member: 28757"><p>Dont they make aftermarket idlers that increase belt wrap on the snout? I had a metco when I ran the stock blower on my 500 with no belt slip(small upper). I also had one for my Whipple 3.4 from metco but never ran a small enough pulley up top to warrant it's use.</p><p></p><p>The lower</p><p>Lighter rotating mass, close in weight but enough to make a difference. Your gaining power due to the boost pressure increase but also gaining extra TQ due to the weight. The parasitic drag is going to be mainly from power robbing items like the blower, alt. water pump......but your a huge mustang shop guy....no? You know this already! </p><p></p><p>The difference in the belt wrap on the lower is going to be minimal at best.</p></blockquote><p></p>
[QUOTE="rdsnk46, post: 12297478, member: 28757"] Dont they make aftermarket idlers that increase belt wrap on the snout? I had a metco when I ran the stock blower on my 500 with no belt slip(small upper). I also had one for my Whipple 3.4 from metco but never ran a small enough pulley up top to warrant it's use. The lower Lighter rotating mass, close in weight but enough to make a difference. Your gaining power due to the boost pressure increase but also gaining extra TQ due to the weight. The parasitic drag is going to be mainly from power robbing items like the blower, alt. water pump......but your a huge mustang shop guy....no? You know this already! The difference in the belt wrap on the lower is going to be minimal at best. [/QUOTE]
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2013-14 Shelby GT500
2013 GT500 black upper pulley?
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