H6 - Light weight crankshaft pulley

Re: H6 - Light weight crankshaft pulley

Postby BUDDAH » Sat Jun 14, 2014 10:48 pm

Tradewind wrote:You reckon? the factory thing is just a lump of metal, the aftermarket one is just a lighter lump of metal. MOST Subaru pulleys have no elastomer rubber or anything else like that for vibration damping, unless H6 is different.





I remember the H6 part been called a Harmonic Balancer Crank Pulley Dampener Assembly ?? if so it is a 2 piece with rubber
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Re: H6 - Light weight crankshaft pulley

Postby Tradewind » Sun Jun 15, 2014 7:35 am

I will have a look at mine today and confirm
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Re: H6 - Light weight crankshaft pulley

Postby Tradewind » Sat Jun 21, 2014 9:45 am

I have had a look

I confirm that the crankpulley on my car does indeed feature an elastomer vibration damping rubber.

Therefore, not just any lump of metal can be fitted to EZ30/36

Time for someone to manufacture a decent damped low weight item ..............
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Re: H6 - Light weight crankshaft pulley

Postby Out6ack » Sat Jun 21, 2014 12:19 pm

viewtopic.php?f=16&t=25654

It'd be great to see a lightened HB developed for the H6.
Jury is still out on the benefits tho?
Your headers got the H6 spinning up a lot quicker, so hopefully a LHB would accentuate that even more. :mrgreen:
I guess all would be revealed in development 8)

Great to see the H6 gettin some love!!
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Re: H6 - Light weight crankshaft pulley

Postby Perscitus » Wed May 13, 2015 11:09 pm

Tradewind wrote:Update on this....
I came across this re lightweight pulley for H6 engines. I have no idea if they are compatible (diameter) with our supercharger kits
http://www.pleasureracing.com/newsite/e ... arts.html#
Bump for an old thread.
Confirmed that these do fit. NA and SCed H6s.
We have a handful of USDM 3.0Rs and 3.6Rs (including mine and Giovanni's Raptor SC'ed 3.6R) with these installed.
PnP fit, down to the replacement crank bolt head cover.

I also started work with Fluidmpr so that they can develop a 3.0R/3.6R vibrational damper for us!
They confirmed they'd need a new design after analyzing my OEM pulley. No ETA, perhaps 12-24 months out ;(

Would be great for top-end power and eliminating almost all signs of ghost knock - especially on SC/Turbo'ed H6s.

Right now they only have crank pulleys for EJ25s, FA20DIT, FA/FB20. Check them out!
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