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lightweight pulley kit or not?

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Old Mar 12, 2013 | 01:01 PM
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Default lightweight pulley kit or not?

hello all,
just gathering some opinions...
pulley kit or not, what is the noticable difference if any?
is it worth it? any diy's if i decide to buy?
any pro's and con's?
thank you all
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Old Mar 12, 2013 | 01:23 PM
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Pro - nice and shiney when you open the engine bay.

Cons - £150


...... think thats it!
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Old Mar 12, 2013 | 01:32 PM
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Another thing to clean
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Old Mar 12, 2013 | 01:32 PM
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hey,
doesn't seem worth the effort! and money
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Old Mar 12, 2013 | 01:33 PM
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and work
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Old Mar 12, 2013 | 08:43 PM
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I was told that fitting a light crank pulley will damage the crank thrust bearing. As the point of a rubberised harmonic crank pulley is to dampen vibration. Otherwise Subaru would have used a solid pulley as they're cheaper to make. Stick with a Subaru one.
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Old Mar 12, 2013 | 09:36 PM
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i was told on our local forum, less weight on the crankshaft=slight power gain, happier reving...seems i'm gonna pass on this upgrade after knowing all this...
thanks for the info!
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Old Mar 13, 2013 | 12:09 AM
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It does! I have the super light RCM set.

It's a small part of a big build so it depends on what your looking for.

Last edited by F1 CJE UK; Mar 13, 2013 at 12:10 AM.
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Old Mar 13, 2013 | 12:38 AM
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I too have the RCM set & with a Fidanza flywheel it is much more free revving. The pulley set is easy to fit if you know what you are doing. However my engine builder warned me that although it won't actually cause a sudden failure, it can cause the shells to ware out more quickly.
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Old Mar 13, 2013 | 11:13 AM
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well i'm running the good side of 300hp about 310... with an oem flywheel and clutch,wouldn't notice much with a pulley set i guess?
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Old Mar 13, 2013 | 02:20 PM
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every little helps....

Do it... or youll never know.
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Old Mar 13, 2013 | 03:38 PM
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Not worth the hassle.

You'll gain negligible gains on faster revving, especially in 1st and 2nd gear, but a lighter pulley will actually put more stress on the crank as it is designed to have the weight of the standard crank pulley on the end. This is one of those mods where just because you can do it, doesn't mean you should do it. Just so you can say "yeah, lightened pulleys" in the pub, for anything other than a race engine, it's simply a poor gain vs risk modification. Leave it alone.
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Old Mar 13, 2013 | 03:54 PM
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Interesting feedback
I was going to get them because I like bright colours but maybe not so sure
Now
Maybe get the paint pot out and cheaper too
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Old Mar 13, 2013 | 03:56 PM
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the harmonic dampener is on the oem one for a reason, the lightweight ones dont have the dampener.
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Old Mar 13, 2013 | 04:05 PM
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http://www.ebay.co.uk/itm/ATI-Harmon...item4d0a27a251
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Old Mar 13, 2013 | 04:11 PM
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Ive switched to a lightweight around a year ago and had no ill effects. Couldnt notice any difference though.

The reason i changed though was because the o/e dampened pulley fell to bits. Wasnt very nice, all of a sudden loosing the power steering at speed. It went with one hell of a bang. Lucky it didnt do any other damage.
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Old Mar 13, 2013 | 08:09 PM
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http://www.ebay.co.uk/itm/ATI-Harmon...item4d0a27a251

what's the weight difference on these?
thanks for all the opinions, will think this through....
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