the crank shaft its harmonic balance?

vitinvictor1 · 01-18-2013, 09:43 PM

Im thinking in get the pulley for the Z...but I want to know if Its the crank shaft harmonic balance????

DEpointfive0 · 01-18-2013, 10:12 PM

Please use the search feature

50% think it's internally balanced, 50% think that if you replace the OEM crank pulley you'll fúck something up...

Personally, I know Mike at NST personally, lol

And I run the 20% under drive pulley without an alternator pulley with no issues, I think it's an amazing mod

dP3NGU1N · 01-18-2013, 11:12 PM

It's strange that we can't get a straight answer on this. Wouldn't one of the shops on the forum know definitively exactly how it's balanced? Particularly the one that sells the pulleys?

DEpointfive0 · 01-18-2013, 11:21 PM

Quote:

Originally Posted by dP3NGU1N

It's strange that we can't get a straight answer on this. Wouldn't one of the shops on the forum know definitively exactly how it's balanced? Particularly the one that sells the pulleys?

The guys selling pulleys sell THOUSDANDS and ALL say the engines are internally balanced... IIRC Mike@NST says that the Harmonics thing is BS, that it would make a difference if our cars were F1 cars spinning at 18k RPM, not 8K
And Mike is a smart guy

It's like wheel spacers, fúck ups come from bad installs... My pulley has been on for... 8k miles, just checked it whole it was on the lift, no issues I can see!

edub370 · 01-19-2013, 09:43 AM

dont know why u would risk damaging your engine by throwing off its harmonics to pick up 3 hp...

7419sundat · 01-19-2013, 12:36 PM

Its a harmonic DAMPER, it does not balance the engine. Yes it is damaging to remove it. That's why almost every single car has one.

SouthArk370Z · 01-19-2013, 12:50 PM

Is there a harmonic damper on the engine?

I searched the FSM for "harmonic", "balance", and "damp" with no harmonic damper found. Scanning through the pics in the engine sections, all I could find is a crank pulley.

Looking at my engine, the crank pulley doesn't look like it's attached to a damper, but it's difficult to see without pulling the fans (and maybe the radiator) plus I wouldn't be surprised if a modern damper doesn't look like what I'm used to seeing.

Z370Z011 · 01-19-2013, 12:51 PM

I wonder what nissan would haw to say about this. Maybe they'll have the real answer?

7419sundat · 01-19-2013, 12:58 PM

The crank pulley is a harmonic damper it has a vibration absorbing material ring in it.

SouthArk370Z · 01-19-2013, 01:01 PM

Quote:

Originally Posted by 7419sundat

The crank pulley is a harmonic damper it has a vibration absorbing material ring in it.

Thanks.

XwChriswX · 01-19-2013, 01:01 PM

I had an NST Pulley set installed @ 8k, I'm almost to 43k right now, zero problems.

Huck · 01-19-2013, 01:03 PM

Quote:

Originally Posted by DEpointfive0

The guys selling pulleys sell THOUSDANDS and ALL say the engines are internally balanced... IIRC Mike@NST says that the Harmonics thing is BS, that it would make a difference if our cars were F1 cars spinning at 18k RPM, not 8K
And Mike is a smart guy

It's like wheel spacers, fúck ups come from bad installs... My pulley has been on for... 8k miles, just checked it whole it was on the lift, no issues I can see!

^^ THIS. I did a lot of research outside of this forum prior to installing mine and came up with the exact same info that Mike at NST posted on his pulley review thread. Go read that thread, it's extremely logical and informative. I've had my pulley on for ~7000-8000 miles with no problems. It's a cheap mod, it gives you more than 3hp, it helps smooth out your acceleration and makes your motor more responsive.

Sent from my iPizzle using magic and new-fangled science stuff

XwChriswX · 01-19-2013, 01:19 PM

Quote:

Originally Posted by Huck

^^ THIS. I did a lot of research outside of this forum prior to installing mine and came up with the exact same info that Mike at NST posted on his pulley review thread. Go read that thread, it's extremely logical and informative. I've had my pulley on for ~7000-8000 miles with no problems. It's a cheap mod, it gives you more than 3hp, it helps smooth out your acceleration and makes your motor more responsive.

This is why I installed it, a minute HP gain is just a plus.

vitinvictor1 · 01-19-2013, 02:04 PM

Thanks for your answers! Its becajse I have pucharsed the stillen pulley (80% more lightweight than OEM ) and I just want to be sure that its safe before install it.....or sell it

7419sundat · 01-19-2013, 02:36 PM

Compare it to an air filter. Yeah you can run your engine without one and get a little more power and better response but your engine won't last as long...

01-18-2013, 09:43 PM	#1 (permalink)
vitinvictor1 Base Member Join Date: Jan 2012 Location: puerto rico Age: 34 Posts: 124 Drives: 2011 nissan 370z red Rep Power: 13	the crank shaft its harmonic balance? Im thinking in get the pulley for the Z...but I want to know if Its the crank shaft harmonic balance????

01-19-2013, 09:43 AM	#5 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	dont know why u would risk damaging your engine by throwing off its harmonics to pick up 3 hp... __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

01-19-2013, 12:50 PM	#7 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Is there a harmonic damper on the engine? I searched the FSM for "harmonic", "balance", and "damp" with no harmonic damper found. Scanning through the pics in the engine sections, all I could find is a crank pulley. Looking at my engine, the crank pulley doesn't look like it's attached to a damper, but it's difficult to see without pulling the fans (and maybe the radiator) plus I wouldn't be surprised if a modern damper doesn't look like what I'm used to seeing. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

01-19-2013, 12:51 PM	#8 (permalink)
Z370Z011 A True Z Fanatic Join Date: Jul 2012 Location: Los Angeles CA Posts: 1,052 Drives: PearlWhite 370z 6MT Rep Power: 15	I wonder what nissan would haw to say about this. Maybe they'll have the real answer? Wonka2581 likes this.

01-19-2013, 01:01 PM	#11 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 452	I had an NST Pulley set installed @ 8k, I'm almost to 43k right now, zero problems. DEpointfive0 likes this. __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

01-18-2013, 10:12 PM	#2 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	Please use the search feature 50% think it's internally balanced, 50% think that if you replace the OEM crank pulley you'll fúck something up... Personally, I know Mike at NST personally, lol And I run the 20% under drive pulley without an alternator pulley with no issues, I think it's an amazing mod

01-18-2013, 11:12 PM	#3 (permalink)
dP3NGU1N A True Z Fanatic Join Date: Feb 2011 Location: Irvine Posts: 1,682 Drives: 13 PW sport 6mt Rep Power: 18	It's strange that we can't get a straight answer on this. Wouldn't one of the shops on the forum know definitively exactly how it's balanced? Particularly the one that sells the pulleys?

01-19-2013, 12:36 PM	#6 (permalink)
7419sundat Base Member Join Date: Aug 2011 Location: colorado Posts: 145 Drives: 09 370z Gtm TT 2 Rep Power: 14	Its a harmonic DAMPER, it does not balance the engine. Yes it is damaging to remove it. That's why almost every single car has one.

01-19-2013, 12:58 PM	#9 (permalink)
7419sundat Base Member Join Date: Aug 2011 Location: colorado Posts: 145 Drives: 09 370z Gtm TT 2 Rep Power: 14	The crank pulley is a harmonic damper it has a vibration absorbing material ring in it.

01-19-2013, 02:04 PM	#14 (permalink)
vitinvictor1 Base Member Join Date: Jan 2012 Location: puerto rico Age: 34 Posts: 124 Drives: 2011 nissan 370z red Rep Power: 13	Thanks for your answers! Its becajse I have pucharsed the stillen pulley (80% more lightweight than OEM ) and I just want to be sure that its safe before install it.....or sell it

01-19-2013, 02:36 PM	#15 (permalink)
7419sundat Base Member Join Date: Aug 2011 Location: colorado Posts: 145 Drives: 09 370z Gtm TT 2 Rep Power: 14	Compare it to an air filter. Yeah you can run your engine without one and get a little more power and better response but your engine won't last as long...

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Jun reply to my cam shaft email	zuperman 370	Intake/Exhaust	27	03-07-2012 08:13 PM
Lowering the car and balance	klubbheads	Nismo 370Z	2	11-02-2011 11:21 PM
Wii with balance board	StealthZ	Misc Items for sale (No Z stuff)	0	09-28-2010 07:01 PM
Wheel balance	Blackbelt	Nissan 370Z General Discussions	2	07-01-2010 12:25 PM