Tonight, well, last night a few hours ago, someone's pulley in our local group shattered... Not exactly sure what brand, but I THINK it's NST just because it looks anodized...
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06-19-2012, 02:54 AM | #16 (permalink) |
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Tonight, well, last night a few hours ago, someone's pulley in our local group shattered... Not exactly sure what brand, but I THINK it's NST just because it looks anodized...
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06-19-2012, 04:24 AM | #17 (permalink) |
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An u.d. pulley is a bolt-on that the dealership could raise a stink over if you ever have warranty issues, as it's the one mod that's connected directly to the engine.
Also, good luck getting that sucker off after you've run with it awhile!
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06-19-2012, 10:16 AM | #18 (permalink) | |
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Either that's a mfg defect in the pulley, or I suppose there could be a possibility of an unstable install. Who knows without more info. |
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06-19-2012, 10:25 AM | #19 (permalink) | |
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06-19-2012, 12:34 PM | #21 (permalink) | |
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06-21-2012, 11:55 AM | #23 (permalink) |
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The local tuner shops in my area which consist of Performance MotorSports, VTR, and RAD which are all well known Z tuners have told me to stay away from them.
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02-06-2014, 12:06 PM | #25 (permalink) | |
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02-06-2014, 12:55 PM | #26 (permalink) |
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It was NA. His crankshaft was damaged, because when he went back to OEM it wobbled too. It actually shattered too.
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02-06-2014, 01:38 PM | #27 (permalink) |
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underdrive pulleys are just fine and a great thing so long as they are attached to a steel hub ati damper
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02-07-2014, 12:24 PM | #28 (permalink) | |
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..... do you know how many miles/km since installed?. These problems may appear "in the long run". I'm thinking that if after years "nothing happend"... at least the pulley may have welded into the crank. But would be good having an idea of what is that "long run". Hope more people with issues would post here. Many are concerned only about A/C or steering problems.
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02-07-2014, 01:21 PM | #29 (permalink) | |
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There really is NO worry, it's a great mod. Spikuh didn't have it on for long, and IT WAS A CRANKSHAFT or INSTALLER problem. When the OEM one was put on, it wobbled like a SOB. Our cars are internally balanced so there is no issue in running the pulley. And the aluminum didn't effect the cast iron. It must have been manufactured like that. I will close/delete this thread. It wasn't originally intended to spread a bad word about them. God knows how it was bumped after a year+
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02-07-2014, 05:17 PM | #30 (permalink) |
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Based on anything I've read or observed -- both technical papers and advice from engine builders and tuners across multiple platforms -- these last two issues are the key "buyer beware" points to keep in mind.
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