the crank shaft its harmonic balance?

XwChriswX · 01-21-2013, 05:07 PM

Quote:

Originally Posted by DEpointfive0

Stillen has the ring too

( Click to show/hide )

lemon-fresh · 01-21-2013, 05:17 PM

Just because I've been really enjoying the discussion.

I think it's about time to toss this old classic into the mix:

JAY.mp4 video by GTMPOWER | Photobucket

Is it because there wasn't a steel sleeve?

XwChriswX · 01-21-2013, 05:27 PM

Quote:

Originally Posted by lemon-fresh

Just because I've been really enjoying the discussion.

I think it's about time to toss this old classic into the mix:

JAY.mp4 video by GTMPOWER | Photobucket

Is it because there wasn't a steel sleeve?

Unorthodox Racing... Not Stillen/NST

No mention of Steel Sleeve in advertising, and no pictures of the backside of the pulley.

From: Unorthodox Racing Crank Pulley w/Belts, Great Pricing. Check it out!!

Quote:

Description:Unorthodox Racing Ultra Accessory pulleys are included in our Ultra Street Sets or may be purchased separately. They are CNC-machined from light weight 6061-T6 aluminum billet. As with all Unorthodox Racing products, tolerances for each accessory pulley is held to within .001".

Off the record though, classic as it may be that isn't a VQ37... So it's not representative of this specific platform. Why? Because impact wrench.

edub370 · 01-21-2013, 05:31 PM

Quote:

Originally Posted by lemon-fresh

Just because I've been really enjoying the discussion.

I think it's about time to toss this old classic into the mix:

JAY.mp4 video by GTMPOWER | Photobucket

Is it because there wasn't a steel sleeve?

THANK YOU!

I had been looking for that vid since this thread started. and while its not a vq37, its still a good representation of what happens when mating to unlike materials

Trilitheum · 01-21-2013, 05:31 PM

Just to address an issue brought up in several posts "The rubber annular ring is only about 5mm thick, it can't fix or do ___X____"

This ring sets up a torsional "lag" between the inner and outer cast iron pieces, the thickness along with the durometer of the rubber dictates the response of the torsional damper. This thickness would be calculated to dampen in the target frequency (RPM) range.

The ring itself is not doing to dampening directly, it is coupling the inner and outer masses which as an entire system does the damping it really is a case of the result is more than the sum of its parts, it's how they work together.

DEpointfive0 · 01-21-2013, 05:38 PM

Quote:

Originally Posted by lemon-fresh

Just because I've been really enjoying the discussion.

I think it's about time to toss this old classic into the mix:

JAY.mp4 video by GTMPOWER | Photobucket

Is it because there wasn't a steel sleeve?

Honestly, I wouldn't use an impact wrench to take it off

Also, the BOLT has fused... Nothing to do with the pulley, no?

And a LOT of people have a TON of problems taking the stock pulley off

DEpointfive0 · 01-21-2013, 05:40 PM

Quote:

Originally Posted by XwChriswX

Unorthodox Racing... Not Stillen/NST

No mention of Steel Sleeve in advertising, and no pictures of the backside of the pulley.

From: Unorthodox Racing Crank Pulley w/Belts, Great Pricing. Check it out!!

Off the record though, classic as it may be that isn't a VQ37... So it's not representative of this specific platform. Why? Because impact wrench.

The second video is of a Stillen

Red__Zed · 01-21-2013, 05:42 PM

Quote:

Originally Posted by Trilitheum

Just to address an issue brought up in several posts "The rubber annular ring is only about 5mm thick, it can't fix or do ___X____"

This ring sets up a torsional "lag" between the inner and outer cast iron pieces, the thickness along with the durometer of the rubber dictates the response of the torsional damper. This thickness would be calculated to dampen in the target frequency (RPM) range.

The ring itself is not doing to dampening directly, it is coupling the inner and outer masses which as an entire system does the damping it really is a case of the result is more than the sum of its parts, it's how they work together.

Absolutely. It's a "spring/mass" system.

The boundaries are where the magic happens.

Trilitheum · 01-21-2013, 05:44 PM

^Absolutely Agree, just was trying to address several posts in this and other threads that it is too small to do anything.

It's not the size that matters it's how you use it

XwChriswX · 01-21-2013, 05:51 PM

Quote:

Originally Posted by DEpointfive0

The second video is of a Stillen

Second video??

DEpointfive0 · 01-21-2013, 05:54 PM

Quote:

Originally Posted by XwChriswX

Second video??

Yeah, I'm looking at the link through my phone and I see 2 videos...

The second one is the same...
Impact wrench... Acetylene/blow torching

XwChriswX · 01-21-2013, 06:02 PM

Quote:

Originally Posted by DEpointfive0

Yeah, I'm looking at the link through my phone and I see 2 videos...

The second one is the same...
Impact wrench... Acetylene/blow torching

Oh, yeah I saw that then. Different attempts at the same (Unorthodox Racing) Pulley.

luigi90210 · 01-21-2013, 06:02 PM

Quote:

Originally Posted by lemon-fresh

Just because I've been really enjoying the discussion.

I think it's about time to toss this old classic into the mix:

JAY.mp4 video by GTMPOWER | Photobucket

Is it because there wasn't a steel sleeve?

^THIS

im very open minded to mods but this is one mod i will never recommend to someone or ever do myself, to much of a risk

Quote:

Originally Posted by XwChriswX

Oh, yeah I saw that then. Different attempts at the same (Unorthodox Racing) Pulley.

the second one said stillen on the part though

DEpointfive0 · 01-21-2013, 06:03 PM

Quote:

Originally Posted by XwChriswX

Oh, yeah I saw that then. Different attempts at the same (Unorthodox Racing) Pulley.

They're different, I promise, look closely!

The second one says Stillen clearly

XwChriswX · 01-21-2013, 06:05 PM

Quote:

Originally Posted by DEpointfive0

They're different, I promise, look closely!

The second one says Stillen clearly

I just watched it again, I'm not seeing it. @ what time point are you seeing it?

01-21-2013, 05:31 PM	#80 (permalink)
Trilitheum Base Member Join Date: Feb 2011 Location: Ontario Posts: 210 Drives: '11 370z 6M KAD Spt Rep Power: 14	Just to address an issue brought up in several posts "The rubber annular ring is only about 5mm thick, it can't fix or do ___X____" This ring sets up a torsional "lag" between the inner and outer cast iron pieces, the thickness along with the durometer of the rubber dictates the response of the torsional damper. This thickness would be calculated to dampen in the target frequency (RPM) range. The ring itself is not doing to dampening directly, it is coupling the inner and outer masses which as an entire system does the damping it really is a case of the result is more than the sum of its parts, it's how they work together. Red__Zed and DEpointfive0 like this. __________________ 2011 Nissan 370Z Touring/Sport, 6MT, KAD

01-21-2013, 05:44 PM	#84 (permalink)
Trilitheum Base Member Join Date: Feb 2011 Location: Ontario Posts: 210 Drives: '11 370z 6M KAD Spt Rep Power: 14	^Absolutely Agree, just was trying to address several posts in this and other threads that it is too small to do anything. It's not the size that matters it's how you use it DEpointfive0 likes this. __________________ 2011 Nissan 370Z Touring/Sport, 6MT, KAD

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01-21-2013, 05:17 PM	#77 (permalink)
lemon-fresh Enthusiast Member Join Date: Mar 2012 Location: Calgary Age: 40 Posts: 471 Drives: 09 370z Rep Power: 13	Just because I've been really enjoying the discussion. I think it's about time to toss this old classic into the mix: JAY.mp4 video by GTMPOWER \| Photobucket Is it because there wasn't a steel sleeve?