Engine, Intake, Exhaust Modifications to your Normally Aspirated Hyundai engine. Cold Air Intakes, Spark Plugs/wires, Cat back Exhaust...etc.

Random 911

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Old Oct 4, 2001 | 01:00 PM
  #1  
Elantra151's Avatar
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Default Random 911

alright its time
i am about 10 hrs away from the pulley
you have helped me out alot.
but you really hit a nerve with the whole
vibration issue. my last question is can you
leave on the harmonic dampner with the aftermarket pullie?
thanx again

if anyone else has a 96-98 auto elantra
and has the pulley please let me know your thoughts

151
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Old Oct 4, 2001 | 01:34 PM
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The issue with the pully replacement is that the stock pully IS the harmonic dampener. The weight of the pully is what counteracts the vibration of the engine. By changing to a lighter and smaller pully, you no longer have the same vibration-dampening properties coming from the inertia of the heavier object. It's all a physics thang.
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Old Oct 4, 2001 | 06:25 PM
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From: Rancho Palos Verdes, CA
Vehicle: 2008 Toyota Prius 2006 Suzuki SV650S
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The stock pulley also has a rubber ring to act as a dampner, in addition to it's weight.

No, you cannot keep the "dampening" properties of the stock unit with the unorthodox underdrive pulley.

It's worth maybe 5 Hp, about 3 to the wheels. It is up to you if the risk is worth it. As I stated before, many people here have them, and no one has yet complained about crank bearing/jounal bearing failure. But you know the risks associated with it, and can make your own informed decision.
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