Hey guy, looking at getting a lightweight crank pulley, not under driven. Anything specific I should be looking out for? Whats your opinion on them? Thanks for the feedback!
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08-17-2015, 09:17 PM | #1 (permalink) |
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Who's running a lightweight crank pulley?
Hey guy, looking at getting a lightweight crank pulley, not under driven. Anything specific I should be looking out for? Whats your opinion on them?
Thanks for the feedback!
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08-17-2015, 09:29 PM | #2 (permalink) |
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Unless it is a track/strip car, stick with a harmonic balancer.
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08-17-2015, 09:53 PM | #3 (permalink) |
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Thanks man, I've never really looked into pulley's. I think I'm just going to stay with the stock pulley
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08-17-2015, 10:20 PM | #4 (permalink) |
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It's more than a pulley. Harmonic balancer
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08-17-2015, 10:23 PM | #5 (permalink) |
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Anything good come from the harmonic balancer?
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08-17-2015, 11:59 PM | #7 (permalink) |
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Some like them, some won't go near them. I won't get one. Seen too many issues with using them.
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08-30-2015, 01:18 PM | #12 (permalink) |
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I wouldn't recommend a lightweight crank pulley in place of the OEM harmonic balancer/damper.
Even though the engines are internally balanced, that still doesn't negate the effects of when the cylinders fire and cause harmonics and vibrations through the crankshaft at different RPMS/loads, kind of like a whipping motion. The damper/harmonic balancer reduces (and possibly eliminates) these harmonics/frequencies. You may not experience any detrimental problems immediately with a lightweight crank pulley, but overtime it could create an issue. There is a reason why Nissan and other manufactures add harmonic balancers vs lightweight pulleys. They want longevity/reliability vs the possibly 5hp you may get. Now Fluidamper or ATI Racing dampers would be a better alternative imo. Sometimes going with ''don't fix it unless it breaks'' is the best route. Or you can Fix it until it breaks lol.
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08-30-2015, 01:24 PM | #13 (permalink) |
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You want to gain performance, try weight reduction or reducing rotational mass. (Not with crank pulleys or what have you).
This is just me, but if you have a twin turbo setup or other forced induction, there is no reason to use a lightweight crank pulley (unless its supplied by the Supercharger kit in this instance). I mean really... a lot of modifications that one does to a vehicle, do you really feel a seat of the pants difference or is it your brain trying to justify you spending $500 or more lol.
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08-30-2015, 02:07 PM | #15 (permalink) |
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Thanks for all the input everyone! I think I'm going to stay away from a light weight pulley, for now at least. My Z isn't my DD but it's not a track car either. I do drive it quite a bit and don't want to sacrifice reliability/longevity of the car.
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