Unorthodox or Stillen Crank Pulley?

Josh@STILLEN · 12-08-2009, 08:13 PM

Yep.. good information here.. only one thing to note on the weights.. for a long time UR listed a higher weight until other pulleys came out, and theirs somehow became lighter all of a sudden.. I don't think I've seen anyone weigh them to see if the numbers stack up.

That being said, you definitely want to make sure you purchase a pulley like this from a reputable source, and definitely do not risk going cheap, especially eBay or some off brand.

These are extremely precision machined and balanced in the design, and not something you'd want to chance to the abilities of a potentially sub-par mfg.

In regards to the harmonic balancer debate, this has been discussed at length in other threads.. long and the short of it.. no the crank pulley on the VQ's is NOT a harmonic balancer, the engine is internally balanced.

But certain things are a must.. like a stainless steel ring to prevent wear, should have stock timing marks.. etc etc etc

cotizi · 01-27-2010, 10:07 PM

well i put it on my scale at home and it was too light to register. soo i weighed myself and then weighed myself holding the pulley and it was 1.1 lbs heavier. not scientific but that's the best i can do

g96818 · 01-29-2010, 08:46 PM

Quote:

Originally Posted by cotizi

well i put it on my scale at home and it was too light to register. soo i weighed myself and then weighed myself holding the pulley and it was 1.1 lbs heavier. not scientific but that's the best i can do

good enough for me. thx

pty370z · 03-31-2010, 04:36 PM

Kinda reviving the thread here...

Quick, simple, and maybe stupid question...

If I replace my crank pulley with an OEM size lightweight pulley, can I keep my stock belt or is it advisable to get a new OEM size belt like Gates for example?

Thanks!

semtex · 01-28-2010, 08:38 AM

pty370z -- just in case you haven't seen this thread yet -> Stillen Underdrive Pulley - Review/Pics/Dyno/Vid

pty370z · 01-29-2010, 07:49 AM

Quote:

Originally Posted by semtex

pty370z -- just in case you haven't seen this thread yet -> Stillen Underdrive Pulley - Review/Pics/Dyno/Vid

Nice review, thanks for the link..

So, are you using the stock belt or did you have to get a new one..??

semtex · 01-29-2010, 08:23 AM

It's an underdrive pulley. Different diameter. Different belt. The belt came with the pulley.

Josh@STILLEN · 03-31-2010, 04:49 PM

You can absolutely use your existing belt.. but they need replacing anyways, so a good opportunity to drop a high quality replacement on there.

For the month of April, we're throwing in either the smaller belt for undersized or OEM sized for standard sized pulleys as a special. Free Gates belt w/Pulley Purchase.. FYI

PM me if I can help..

KEVTEX · 03-31-2010, 06:49 PM

Josh, can you clarify step 3 on your install instructions? What is "the one of the angle mark"?
"Place a paint mark on the crankshaft
pulley (a) aligned with the one of the
angle mark on the crankshaft bolt (b).
Tighten the bolt until it has turned 90
degrees and the next mark on the bolt is
aligned with your paint mark."

12-08-2009, 08:13 PM	#1 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 533	Yep.. good information here.. only one thing to note on the weights.. for a long time UR listed a higher weight until other pulleys came out, and theirs somehow became lighter all of a sudden.. I don't think I've seen anyone weigh them to see if the numbers stack up. That being said, you definitely want to make sure you purchase a pulley like this from a reputable source, and definitely do not risk going cheap, especially eBay or some off brand. These are extremely precision machined and balanced in the design, and not something you'd want to chance to the abilities of a potentially sub-par mfg. In regards to the harmonic balancer debate, this has been discussed at length in other threads.. long and the short of it.. no the crank pulley on the VQ's is NOT a harmonic balancer, the engine is internally balanced. But certain things are a must.. like a stainless steel ring to prevent wear, should have stock timing marks.. etc etc etc Last edited by Josh@STILLEN; 12-08-2009 at 08:16 PM.

01-27-2010, 10:07 PM	#2 (permalink)
cotizi Enthusiast Member Join Date: Mar 2009 Location: Austin, Tx Posts: 391 Drives: 2012 VW GTI 6MT Rep Power: 217	well i put it on my scale at home and it was too light to register. soo i weighed myself and then weighed myself holding the pulley and it was 1.1 lbs heavier. not scientific but that's the best i can do __________________ Past - 2009 Silver 6MT Sport 370Z Current - 2012 VW GTI 6-Speed

03-31-2010, 04:36 PM	#4 (permalink)
pty370z Track Member Join Date: Apr 2009 Location: Panama City, Panama Posts: 654 Drives: over the speed limit Rep Power: 17	Kinda reviving the thread here... Quick, simple, and maybe stupid question... If I replace my crank pulley with an OEM size lightweight pulley, can I keep my stock belt or is it advisable to get a new OEM size belt like Gates for example? Thanks! __________________ 2010 Solid Red 370Z * *Touring-Sport-6MT Black Interior Performance:** STILLEN * BERK * UR * MISHIMOTO * K&N * Z1 * ZSPEED * UPREV * DBA Interior: GT-R Red Start/Stop Button * MSA Floor Mats * PW:JDM Exterior: INGS+1 * SEIBON * FUJIMURA * PW:JDM * UAM * KICS * VOLK

01-28-2010, 08:38 AM	#5 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 53 Posts: 5,995 Drives: People to drink Rep Power: 32	pty370z -- just in case you haven't seen this thread yet -> Stillen Underdrive Pulley - Review/Pics/Dyno/Vid __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

01-29-2010, 08:23 AM	#7 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 53 Posts: 5,995 Drives: People to drink Rep Power: 32	It's an underdrive pulley. Different diameter. Different belt. The belt came with the pulley. __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

03-31-2010, 04:49 PM	#8 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 533	You can absolutely use your existing belt.. but they need replacing anyways, so a good opportunity to drop a high quality replacement on there. For the month of April, we're throwing in either the smaller belt for undersized or OEM sized for standard sized pulleys as a special. Free Gates belt w/Pulley Purchase.. FYI PM me if I can help..

03-31-2010, 06:49 PM	#9 (permalink)
KEVTEX Base Member Join Date: Nov 2009 Location: Montgomery, TX Posts: 119 Drives: 2010 370Z 7at sp pg Rep Power: 15	Josh, can you clarify step 3 on your install instructions? What is "the one of the angle mark"? "Place a paint mark on the crankshaft pulley (a) aligned with the one of the angle mark on the crankshaft bolt (b). Tighten the bolt until it has turned 90 degrees and the next mark on the bolt is aligned with your paint mark."

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