2.2L L61 Performance Tech 16 valve 145 hp EcoTec with 155 lb-ft of torque

UDPs?

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Old Jun 23, 2008 | 12:03 AM
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Ramphex's Avatar
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From: Poconos, PA/North NJ
UDPs?

Does anyone make Under-Drive Pulleys for the 2.2 ecotecs yet? I've seen those give 5-10 HP on tuned 3X00SFIs.
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Old Jun 23, 2008 | 12:14 AM
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either someone has but its only one company, or there is a company working on it. actually i think TTR or MRZ is working on one
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Old Jun 23, 2008 | 12:21 AM
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i believe someone is working on lightweight pullies, not underdrive.
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Old Jun 23, 2008 | 10:17 AM
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pacific cobalt's Avatar
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Originally Posted by Smitty1017
i believe someone is working on lightweight pullies, not underdrive.
Yes lightweight Alt. and Crank Pulley for the 2.2 and 2.4
This guy MD-HHR has a group buy going on
http://www.ecotecforum.com/forums/forumdisplay.php?f=89

Also MRZ is working on one
https://www.cobaltss.net/forums/mrz-performance-139/new-parts-coming-up-soon-mrz-93382/
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Old Jun 24, 2008 | 02:56 AM
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RKsports has one, its a smaller than stock one, 150+ shipping, go to their site look under 03+cavalier
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