Honda Civic Performance - JDM Discussion Engine tech, forced induction, springs, shocks, brakes, tires, etc.

aluminum vs steel (oem)

Old 09-Sep-2003, 10:20 AM
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aluminum vs steel (oem)

if i had an aluminum underdrive pulley would it make much of a difference to my motor if i changed it from (oem steel) to the aluminum one ?
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Old 09-Sep-2003, 10:29 AM
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underdrive crank pulley or everything else??
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Old 12-Sep-2003, 12:45 AM
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just an underdrive crank pulley i only have an alternator hooked up to it
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Old 12-Sep-2003, 08:21 AM
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no good, the crank pulley is also a harmonic balancer, so if you don't want your engine to shake itself to death internally, then leave it alone.
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Old 12-Sep-2003, 08:21 AM
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BTW, you can lighten your flywheel for the same results.
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Old 12-Sep-2003, 12:19 PM
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ya i wouldn't touch the crank pulley.... if you want quicker revs and such just shave your flywheel down a little, while the tranny is off may as well get a nice clutch too
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Old 12-Sep-2003, 07:40 PM
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i have unorthadox underdrive pully's...its a HUGE weight difference...and i noticed a diff......i also have many other mods but i like this mod......
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Old 12-Sep-2003, 10:38 PM
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thanks man i have come to the conclusion that i will give it a try if i don't like it or notice any adverse effect i will keep it if not i will sell it im getting it for free so im not concerned just wondered if it was worth the work
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