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!

Unless it is a track/strip car, stick with a harmonic balancer.

Thanks man, I've never really looked into pulley's. I think I'm just going to stay with the stock pulley :)

It's more than a pulley. Harmonic balancer

Anything good come from the harmonic balancer?

Lol

Sent from my SGH-T889 using Tapatalk

Some like them, some won't go near them. I won't get one. Seen too many issues with using them. :eek:

I've got the Unorthodox pulley kit on mine both before and after my TT kit. I'm running 550WHP for 20,000km and my engine has had zero issues.


NOBLE

Just wait a bit. If you keep an eye on everything and stay on top of it, you should be good.

You won't have issues until you will try to take the pulley off. There are few horror stories around the forum. I'd stay away.

Me!!!

I love it

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.

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.

Me too!!!!

I sleep with my crank peacfully.:tup:

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.