Nissan 370Z Forum  

stillen lightweight crank pulley

Anybody got one yet? Is it worth the money?

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Reply
 
LinkBack Thread Tools Display Modes
Old 04-03-2009, 04:36 PM   #1 (permalink)
Base Member
 
Join Date: Mar 2009
Location: killeen tx
Posts: 202
Drives: black 09 370Z 6spd
Rep Power: 16
black09Z is on a distinguished road
Default stillen lightweight crank pulley

Anybody got one yet? Is it worth the money?
black09Z is offline   Reply With Quote
Old 04-03-2009, 04:51 PM   #2 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

Quote:
Originally Posted by black09Z View Post
Anybody got one yet? Is it worth the money?
RCZ and Semtex both bought them but they don't have them yet.
ChrisSlicks is offline   Reply With Quote
Old 04-03-2009, 09:09 PM   #3 (permalink)
Base Member
 
Join Date: Mar 2009
Location: Alabama
Posts: 20
Drives: 2004 VW R32
Rep Power: 203
BlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond repute
Default

i almost hate to bring it up, but does the stock pulley have a harmonic damper?

conversely, does anyone make lightweight pulleys for the non-crank items (alternator, water pump, AC)?
BlueR32 is offline   Reply With Quote
Old 04-08-2009, 10:35 AM   #4 (permalink)
Base Member
 
Join Date: Mar 2009
Location: killeen tx
Posts: 202
Drives: black 09 370Z 6spd
Rep Power: 16
black09Z is on a distinguished road
Default

What's that mean?
black09Z is offline   Reply With Quote
Old 04-08-2009, 11:44 AM   #5 (permalink)
Enthusiast Member
 
JoeyD's Avatar
 
Join Date: Jan 2009
Location: Raeford, NC
Posts: 305
Drives: 09 NISMO 370Z
Rep Power: 186
JoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond reputeJoeyD has a reputation beyond repute
Default

Harmonic dampers absorb vibration through the crank and prolong the life of the bottom end by reducing wear on bearings and such. They are less important the shorter your crank is. In other words it's not as important on a V-6 as it would be on a I-6.
__________________
When was the last time you did 230MPH in something with 4 seats?
JoeyD is offline   Reply With Quote
Old 04-08-2009, 12:20 PM   #6 (permalink)
RCZ
A True Z Fanatic
 
RCZ's Avatar
 
Join Date: Nov 2008
Location: Miami
Posts: 6,403
Drives: '09 370Z
Rep Power: 1118
RCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond repute
Send a message via AIM to RCZ
Default

Hehe, the myth resurfaces. Harmonic Dampers is a never ending argument, like break-in.

We'll see what happens when I get it installed...

Oh and mine comes in tomorrow, I'll get pics up when I have it.
RCZ is offline   Reply With Quote
Old 04-08-2009, 01:14 PM   #7 (permalink)
Base Member
 
Join Date: Mar 2009
Location: Alabama
Posts: 20
Drives: 2004 VW R32
Rep Power: 203
BlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond reputeBlueR32 has a reputation beyond repute
Default

Quote:
Originally Posted by RCZ View Post
Hehe, the myth resurfaces. Harmonic Dampers is a never ending argument, like break-in.
myth, as in fictional? torsional vibrations that lead to engine failure are definitely not myth.

harmonic amplification of such vibrations would occur at very specific rpms/frequencies, so their relevance in a passenger car, whose rpms vary constantly, is probably very low, hence the assumption that they are not needed or can be eliminated.

it IS a never ending argument, especially when people say things like "it didn't happen to me, so it must not be true," which is just as misleading as "stay away from this- i had an engine failure, so this part must have done it."

anecdotal/individual experiences mean nothing except as part of controlled study. unfortunately, such study is essentially never done with aftermarket car parts. so, we are left with having to make such decisions on precious little worthwhile information.

i am just curious to know if the stock crank pulley has a harmonic damper. if it doesn't, there's not a reason in the world to avoid an underdrive pulley. if it does, people should make their decision mindful that someone thought it was a good idea.
BlueR32 is offline   Reply With Quote
Old 04-08-2009, 07:28 PM   #8 (permalink)
Base Member
 
Join Date: Mar 2009
Location: killeen tx
Posts: 202
Drives: black 09 370Z 6spd
Rep Power: 16
black09Z is on a distinguished road
Default

Thanks for the info. Can't wait to see the pics, don't forget to tell us how much of a difference if any you notice
black09Z is offline   Reply With Quote
Old 04-08-2009, 07:46 PM   #9 (permalink)
Base Member
 
Join Date: Jan 2009
Location: WA
Posts: 12
Drives: Hopefully a 370Z
Rep Power: 16
JTso is on a distinguished road
Default

Is the stock crank internally balanced? If so, there's no harmonic damper. If you see a rubber band like ring as part of the pulley, that's the elastomer for absorbing operation noises such belt rotation sound. A harmonic dampering pulley is easy to spot such as those on domestic engines. Someone should take a picture of the pulley.
JTso is offline   Reply With Quote
Old 04-08-2009, 08:04 PM   #10 (permalink)
RCZ
A True Z Fanatic
 
RCZ's Avatar
 
Join Date: Nov 2008
Location: Miami
Posts: 6,403
Drives: '09 370Z
Rep Power: 1118
RCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond repute
Send a message via AIM to RCZ
Default

Quote:
Originally Posted by BlueR32 View Post
myth, as in fictional?
No, not as in fictional, but I'm glad it gave you a chance to explain that for the folks who didn't know what it was for....

What I was getting at is exactly what you said later on. That everyone always talks about it and the effects of not having one, yet it becomes an argument about whether or not the car needs it. Just like whether or not the car needs a babying period during break in.

I am glad you know your stuff, but that begs the question as to why you have an R32?

I am kidding.

I'll let you know if my motor vibrates itself into pieces in a couple months

Last edited by RCZ; 04-08-2009 at 08:07 PM.
RCZ is offline   Reply With Quote
Old 04-08-2009, 08:21 PM   #11 (permalink)
The370Z.com Sponsor
 
Josh@STILLEN's Avatar
 
Join Date: Dec 2008
Location: Costa Mesa, CA
Posts: 1,197
Drives: 2004 G35 Coupe 6MT
Rep Power: 533
Josh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond reputeJosh@STILLEN has a reputation beyond repute
Default

Quote:
Originally Posted by BlueR32 View Post
i am just curious to know if the stock crank pulley has a harmonic damper. if it doesn't, there's not a reason in the world to avoid an underdrive pulley. if it does, people should make their decision mindful that someone thought it was a good idea.
Quote:
Originally Posted by JTso View Post
Is the stock crank internally balanced? If so, there's no harmonic damper. If you see a rubber band like ring as part of the pulley, that's the elastomer for absorbing operation noises such belt rotation sound. A harmonic dampering pulley is easy to spot such as those on domestic engines. Someone should take a picture of the pulley.
The stock pulley is not a harmonic damper, and the engine is internally balanced. There is a rubber piece for NVH reduction. This information is correct.
Josh@STILLEN is offline   Reply With Quote
Old 04-11-2009, 12:31 PM   #12 (permalink)
Base Member
 
Join Date: Mar 2009
Location: killeen tx
Posts: 202
Drives: black 09 370Z 6spd
Rep Power: 16
black09Z is on a distinguished road
Default

So back to the first question, how is it?
black09Z is offline   Reply With Quote
Old 04-12-2009, 07:57 PM   #13 (permalink)
RCZ
A True Z Fanatic
 
RCZ's Avatar
 
Join Date: Nov 2008
Location: Miami
Posts: 6,403
Drives: '09 370Z
Rep Power: 1118
RCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond repute
Send a message via AIM to RCZ
Default

Didn't get a chance to install it over the weekend. Sorry, should be in this weekend though.
RCZ is offline   Reply With Quote
Old 04-20-2009, 10:36 AM   #14 (permalink)
Base Member
 
Join Date: Mar 2009
Location: killeen tx
Posts: 202
Drives: black 09 370Z 6spd
Rep Power: 16
black09Z is on a distinguished road
Default

I'm getting impatient! Lol. Stop teasing me!
black09Z is offline   Reply With Quote
Old 04-20-2009, 10:50 AM   #15 (permalink)
Track Member
 
SOLISIMO's Avatar
 
Join Date: Apr 2009
Location: Florida
Posts: 510
Drives: TOP SECRET G37S
Rep Power: 16
SOLISIMO will become famous soon enough
Send a message via Yahoo to SOLISIMO
Default

The G37 isnt seeing any gains from them
SOLISIMO is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lightweight flywheels and SyncroRev Match semtex Engine & Drivetrain 19 01-25-2015 11:55 AM
STILLEN lightweight crank pulley u155282 Engine & Drivetrain 97 08-01-2011 09:33 PM
STILLEN Lightweight Aluminum Flywheel Nissan 370Z: FREE SHIPPING / IntensePower! INTENSEPOWER Drivetrain/Engine 2 08-23-2009 10:24 AM
Welcome STILLEN AK370Z STILLEN 10 02-03-2009 02:19 PM
Stillen Intake for VQ37VHR vdcoff Intake/Exhaust 7 01-25-2009 03:27 PM


All times are GMT -5. The time now is 12:36 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2