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SVTPerformance's Chain of Restaurants
The Blower Bistro
Procharger Pulley Sizes = what boost?
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<blockquote data-quote="IUP99snake" data-source="post: 7439085" data-attributes="member: 7060"><p>I have a 3.9" pulley. Its the same size that came with the procharger kit, and was designed to make 10LBS with a stock 99 cobra. That it did.</p><p></p><p>With an aviator longblock, O/R X pipe, Cat back, and 4" Morpheus powerpipe, the same pulley makes about 7-8LBS of boost. The morpheus pipe probably gave it an extra 2-3LBS of boost, but it lost more than that because the 03-up heads/cams flow much better, but also give the motor a 500RPM lower redline. </p><p></p><p>I briefly put on a 3.1" pulley and was rewarded with an extra 5LBS of boost at 3000RPM, but it wouldn't go any higher than 12LBS of boost after 4500RPM (probably because I had a crappy belt). </p><p></p><p>That 3.1" pulley is for sale, by the way. Anyone want it?</p><p></p><p>Homer</p></blockquote><p></p>
[QUOTE="IUP99snake, post: 7439085, member: 7060"] I have a 3.9" pulley. Its the same size that came with the procharger kit, and was designed to make 10LBS with a stock 99 cobra. That it did. With an aviator longblock, O/R X pipe, Cat back, and 4" Morpheus powerpipe, the same pulley makes about 7-8LBS of boost. The morpheus pipe probably gave it an extra 2-3LBS of boost, but it lost more than that because the 03-up heads/cams flow much better, but also give the motor a 500RPM lower redline. I briefly put on a 3.1" pulley and was rewarded with an extra 5LBS of boost at 3000RPM, but it wouldn't go any higher than 12LBS of boost after 4500RPM (probably because I had a crappy belt). That 3.1" pulley is for sale, by the way. Anyone want it? Homer [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
Procharger Pulley Sizes = what boost?
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