Who's running a lightweight crank pulley?

shoeless89 · 08-17-2015, 08:17 PM

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!

SouthArk370Z · 08-17-2015, 08:29 PM

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

shoeless89 · 08-17-2015, 08:53 PM

Quote:

Originally Posted by SouthArk370Z

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

SouthArk370Z · 08-17-2015, 09:20 PM

It's more than a pulley. Harmonic balancer

MicntaeG35 · 08-17-2015, 09:23 PM

Anything good come from the harmonic balancer?

xxZxx · 08-17-2015, 10:44 PM

Lol

Sent from my SGH-T889 using Tapatalk

Rusty · 08-17-2015, 10:59 PM

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

NOBLE|370Z · 08-30-2015, 10:22 AM

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

roplusbee · 08-30-2015, 11:20 AM

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

fryzia23 · 08-30-2015, 11:20 AM

Quote:

Originally Posted by NOBLE|370Z

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

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.

DEpointfive0 · 08-30-2015, 11:37 AM

Me!!!

I love it

MILENKOGT · 08-30-2015, 12:18 PM

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.

MILENKOGT · 08-30-2015, 12:24 PM

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.

Zoren 370 · 08-30-2015, 12:56 PM

Quote:

Originally Posted by DEpointfive0

Me!!!

I love it

Me too!!!!

I sleep with my crank peacfully.

shoeless89 · 08-30-2015, 01:07 PM

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.

08-17-2015, 08:17 PM	#1 (permalink)
shoeless89 Base Member Join Date: May 2013 Location: Fort Thomas, KY Posts: 44 Drives: '11 370Z Blk M6 Rep Power: 13	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! __________________ 2011 370Z Magnetic Black Base w/Sport \| Injen CAI \| Ark Grip V2 CBE

08-17-2015, 08:29 PM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324199	Unless it is a track/strip car, stick with a harmonic balancer. 2011 Nismo#91 likes this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

08-17-2015, 09:20 PM	#4 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324199	It's more than a pulley. Harmonic balancer __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

08-17-2015, 09:23 PM	#5 (permalink)
MicntaeG35 Enthusiast Member Join Date: May 2014 Location: Trussville, AL Posts: 470 Drives: 11 370z nismo #452 Rep Power: 12	Anything good come from the harmonic balancer? __________________ A wounded man shall say to his assailant "If I live, I will kill you. If I die, you are forgiven."

08-17-2015, 10:59 PM	#7 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,568 Drives: 2011 Nismo GM 6M Rep Power: 2684440	Some like them, some won't go near them. I won't get one. Seen too many issues with using them. MILENKOGT likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

08-17-2015, 10:44 PM	#6 (permalink)
xxZxx Enthusiast Member Join Date: Jan 2015 Location: Houston Texas Posts: 277 Drives: 09 Nissan 370z Rep Power: 12	Lol Sent from my SGH-T889 using Tapatalk

08-30-2015, 10:22 AM	#8 (permalink)
NOBLE\|370Z Base Member Join Date: Sep 2011 Location: Calgary AB Posts: 61 Drives: 09 Nissan 370Z Rep Power: 15	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

08-30-2015, 11:20 AM	#9 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 24	Just wait a bit. If you keep an eye on everything and stay on top of it, you should be good. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

08-30-2015, 11:37 AM	#11 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17153	Me!!! I love it Zoren 370 likes this. __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

08-30-2015, 12:18 PM	#12 (permalink)
MILENKOGT Base Member Join Date: Jun 2015 Location: pensacola, fl Posts: 30 Drives: nissan titan Rep Power: 11	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. Rusty likes this. __________________ 2008 Nissan Titan Crew Cab 2wd JWT C8/S7 cam package, Full Bolt ons 372rwhp/447rwtq Uprev Tuned @ Z1 Motorsports

08-30-2015, 12:24 PM	#13 (permalink)
MILENKOGT Base Member Join Date: Jun 2015 Location: pensacola, fl Posts: 30 Drives: nissan titan Rep Power: 11	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. __________________ 2008 Nissan Titan Crew Cab 2wd JWT C8/S7 cam package, Full Bolt ons 372rwhp/447rwtq Uprev Tuned @ Z1 Motorsports

08-30-2015, 01:07 PM	#15 (permalink)
shoeless89 Base Member Join Date: May 2013 Location: Fort Thomas, KY Posts: 44 Drives: '11 370Z Blk M6 Rep Power: 13	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. __________________ 2011 370Z Magnetic Black Base w/Sport \| Injen CAI \| Ark Grip V2 CBE

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