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SVT Shelby GT500
Evolution Performance - Shelby GT500 - 563 RWHP and 562 RWTQ Video! (Pulley Swap)
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<blockquote data-quote="Evolution" data-source="post: 4015050" data-attributes="member: 34686"><p>I talked to Bob at Stiegemeier, there was a little misunderstanding! I initially told Bob there was a 10 RWHP gain and a 9 RWTQ Loss from the ported blower with stock pulley, but after reviewing the data logs we weren't comparing apples to apples! </p><p></p><p>8/18/06 - When we made 500 RWHP and 502 RWTQ, the coolant temp was about 187 degrees (We made 3 back to back pulls with 10 mins cool down time)</p><p></p><p>8/21/06 - The Supercharger was overnighted to Stiegemeier to get ported</p><p></p><p>8/25/06 - The ported supercharger was installed on the GT500, while strapped to the dyno with the stock pulley.</p><p></p><p>We made a pull, which did net a 10 RWHP Gain and a 9 RWTQ Loss, but after looking at the data logs I realized the car was dynod with a lower coolant temp (155 Degrees) then when we made 500/502 (187 Degrees). So the numbers wouldn't be accurate unless we got the temp up to match the original run! So we got the car up to 187 degrees and did another pull, which netted a gain of only 2 RWHP and still a loss of 9 RWTQ!</p><p></p><p>Bob will be getting the blower back next week for the Stage IV Port. Bob has been great to work with; he dropped everything he was doing the day he received the blower from us to get it done in the time we needed it to be done! I wouldn’t bank on the low gains right now; he is experimenting and doesn’t want to take it too far, since it’s a brand new blower! We will work together to get this done right, so everyone in the future will benefit from it</p><p></p><p>I will be online for the next couple of hours, I will start a fresh thread for people to ask questions about our Shelby GT500, and I will answer them!</p></blockquote><p></p>
[QUOTE="Evolution, post: 4015050, member: 34686"] I talked to Bob at Stiegemeier, there was a little misunderstanding! I initially told Bob there was a 10 RWHP gain and a 9 RWTQ Loss from the ported blower with stock pulley, but after reviewing the data logs we weren't comparing apples to apples! 8/18/06 - When we made 500 RWHP and 502 RWTQ, the coolant temp was about 187 degrees (We made 3 back to back pulls with 10 mins cool down time) 8/21/06 - The Supercharger was overnighted to Stiegemeier to get ported 8/25/06 - The ported supercharger was installed on the GT500, while strapped to the dyno with the stock pulley. We made a pull, which did net a 10 RWHP Gain and a 9 RWTQ Loss, but after looking at the data logs I realized the car was dynod with a lower coolant temp (155 Degrees) then when we made 500/502 (187 Degrees). So the numbers wouldn't be accurate unless we got the temp up to match the original run! So we got the car up to 187 degrees and did another pull, which netted a gain of only 2 RWHP and still a loss of 9 RWTQ! Bob will be getting the blower back next week for the Stage IV Port. Bob has been great to work with; he dropped everything he was doing the day he received the blower from us to get it done in the time we needed it to be done! I wouldn’t bank on the low gains right now; he is experimenting and doesn’t want to take it too far, since it’s a brand new blower! We will work together to get this done right, so everyone in the future will benefit from it I will be online for the next couple of hours, I will start a fresh thread for people to ask questions about our Shelby GT500, and I will answer them! [/QUOTE]
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Evolution Performance - Shelby GT500 - 563 RWHP and 562 RWTQ Video! (Pulley Swap)
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