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underdrive pulleys

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Old 05-19-2006, 01:12 PM
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My Toyo's Hooked Good Untill They Started To Wear. Now They Spin Like A Sombitch!!
Old 05-19-2006, 01:31 PM
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Originally Posted by TXsilverado
wish i had that problem.i cant keep my truck on the ground anywhere below 35 mph im starting to think these toyos were a little too hyped up...

this was two years ago. i can do a nice peel out now. but i will say, my generals do a good job of getting control of the traction problem
Old 05-19-2006, 02:00 PM
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Originally Posted by v8
my 4.8 lost some
How could this mod make you lose hp? Was this based on ET tests at the track? Same conditions?
Old 05-19-2006, 02:04 PM
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I have them on my truck and i felt the differance as soon as i gave it alittle gas.Not sure on how much it dropped my et. but it did help sotp for sure anyway...
Old 05-19-2006, 03:06 PM
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Did anybody see false KR with the pulleys?
Old 05-19-2006, 03:25 PM
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I have had mine since Feb. of 2000 and it has been on 4 different trucks,and it helped all of them.My 99 GMC got 1 tenth and 1.5mph out of them.The rest I did not do a before and after test.I have ran my HP tuners scan program many many times and no KR even at 34* of timing(the 06 that is)
Old 05-20-2006, 12:50 AM
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sounds like the pullies is a good thing to do whenever you want i guess. i was thinkin about doing it then i decided to spend money on the cam swap to be continued
Old 05-29-2006, 01:32 PM
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ok so let me ask

whats the diff between the f-body pulley and the truck based pulley other then belt length.... cause of the diff acc bracket's on the truck
Old 05-29-2006, 03:58 PM
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ask 1slow01z71. he tried to use ls1 pullies on his truck and i dont think it was sucessfull
Old 05-29-2006, 06:19 PM
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The F-body pulley sets closer to the engine, and won't line up with the truck accessories.


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