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SVTPerformance's Chain of Restaurants
The Blower Bistro
2.9L Whipple Problems with 2.75 Pulley
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<blockquote data-quote="SnakeBoostE85" data-source="post: 14523019" data-attributes="member: 160175"><p>Originally when living at sea level I was running a 3.5 pulley making 19-20 PSI. After I moved to colorado, and installed a reduction 2.75 pulley I have been having nothing but problems. After about 500 miles it started making noise, so I pulled it off and sent into to whipple for service. They said the bearing were making some noise in the front end, so they replaced the bearing and seals and sent it back. Upon installation it was fine. I also confirmed with them that it was within design specs to run a 2.75 pulley on that blower. With the stock lower they agreed that it is under the RPM limits and should not be an issue. Now the rotor pack sounds awfully noisy at idle. </p><p></p><p>Is there anyone else having issues with 2.9L whipples (W175AX) with a 2.75 pulley?</p></blockquote><p></p>
[QUOTE="SnakeBoostE85, post: 14523019, member: 160175"] Originally when living at sea level I was running a 3.5 pulley making 19-20 PSI. After I moved to colorado, and installed a reduction 2.75 pulley I have been having nothing but problems. After about 500 miles it started making noise, so I pulled it off and sent into to whipple for service. They said the bearing were making some noise in the front end, so they replaced the bearing and seals and sent it back. Upon installation it was fine. I also confirmed with them that it was within design specs to run a 2.75 pulley on that blower. With the stock lower they agreed that it is under the RPM limits and should not be an issue. Now the rotor pack sounds awfully noisy at idle. Is there anyone else having issues with 2.9L whipples (W175AX) with a 2.75 pulley? [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
2.9L Whipple Problems with 2.75 Pulley
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