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SVTPerformance's Chain of Restaurants
The Blower Bistro
03 cobra pulley advice
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<blockquote data-quote="CobraBob" data-source="post: 11019113" data-attributes="member: 6727"><p>I agree with doing an upper only with an unported blower. However, I would recommend the 2.90/2.93 over the 2.76 with the stock Heaton. Less heat to affect the blower efficiency with lesser overspinning. Power potential is very good. My old '03 Cobra (RAI, X-pipe, catback, ported TB, 2.90 upper) made 457rwhp and 480rwtq (SAE). Heat was never an issue. JMO.</p><p></p><p>If you go with a smaller pulley get rid of all of the stock stamped steel pulleys (they are prone to exploding at the worse times) and go with a good 4-piece billet idler set (Metco or Billetflow recommended).</p></blockquote><p></p>
[QUOTE="CobraBob, post: 11019113, member: 6727"] I agree with doing an upper only with an unported blower. However, I would recommend the 2.90/2.93 over the 2.76 with the stock Heaton. Less heat to affect the blower efficiency with lesser overspinning. Power potential is very good. My old '03 Cobra (RAI, X-pipe, catback, ported TB, 2.90 upper) made 457rwhp and 480rwtq (SAE). Heat was never an issue. JMO. If you go with a smaller pulley get rid of all of the stock stamped steel pulleys (they are prone to exploding at the worse times) and go with a good 4-piece billet idler set (Metco or Billetflow recommended). [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
03 cobra pulley advice
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