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: http://www.the370z.com/drivetrain-en...check-out.html
:ugh2:


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.

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

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.

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

The second video is of a Stillen

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

The boundaries are where the magic happens.

^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 ;)

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

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

^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

the second one said stillen on the part though

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?