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Old 22 February 2012, 07:49 AM
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paulT25
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Default PULLEY SETS ! WORTH FITTING?

Hi , Just a quick question, before my engine gets a overhaul,
What are the + points for fitting lightweight Pully sets.
I will be having a lightweight flywheel. and uprated clutch, complete with fuel rails, to add to everything else I have had fitted already.

Any thoughts would help.
Paul.
Old 22 February 2012, 07:56 AM
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CREWJ
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Lightweight I suppose

Lightened flywheel will make the engine rev easier but struggle lower down.
Old 22 February 2012, 08:34 AM
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If its worth fitting lightweight pulley set,not sure,if you are looking for some bhp gain,i'm afraid you will gain marginal increase or something what you never feel on road


Jura
Old 22 February 2012, 09:32 AM
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Wolf_gsxr
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There to reduce parasitic loss of power from the engine although most just fit them for the bling factor. If you have a monsterous engine that's had everything done to it and you want that extra 2 or so Bhp get one but not really too benifitial. If your looking for lightweight stuff do everything between the flywheel to the wheel. It will reduce your drivetrain losses and give you a higher whp figure.
Old 22 February 2012, 10:02 AM
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IainMilford
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i fitted a light weight crank pulley and was sure i could feel the engine revvng a couple of hundred rpm earlier, but may have just been saying that to myself ! Looks good though
Old 22 February 2012, 08:43 PM
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paulT25
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Ta for the advice, I am running 500+H.p SO THEY WILL not add that much, and not realy into bling, spend more on the power side /

Will go for the Flywheel , and maybe a torque line prop shaft.
Old 23 February 2012, 11:06 AM
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Has anyone ever heard of these causing problems on a standard engine due to lack of damping on the crank?
Old 23 February 2012, 11:49 AM
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Btt
Old 23 February 2012, 02:14 PM
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Wolf_gsxr
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Never heard anything about the crank. On some cars the alternators need altering but even that's rare. If your chasing bhp then lightweight drive and prop shafts are the way to go after a flywheel. Ever weighed your wheels? We used to have a vts running 150bhp and 118whp after we lightened the flywheel and the front driveshafts and some 4.7kg alloys and we got the whp up to 139. That's for a front wheel drive car so the savings on a 4 wheel drive will be alot greater as the % loss is higher
Old 23 February 2012, 02:37 PM
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Originally Posted by johnpye
Has anyone ever heard of these causing problems on a standard engine due to lack of damping on the crank?
Have look on this thread on 22b

http://bbs.22b.com/cgi-bin/ultimateb...c;f=9;t=002217


Jura
Old 23 February 2012, 06:20 PM
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I've gone to a lightweight one peice pulley because of this problem


Not ideal when the pulley falls apart. No damage this time other than the pulley. But it went with one hell of a bang when it hit the underside of the car.
Old 23 February 2012, 06:32 PM
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Hey,

The weight saving from fitting uprated/lightweight pulley set's is amazing!
The weight reduction will lower the engines rotating mass which in turn will improve acceleration and enhance engine response.
Any rotating engine mass reduced is a +ve, Plus they look great in the engine bay...

We just so happen to have a group buy offer on these....>

https://www.scoobynet.com/group-buys...lley-sets.html

Hope this helps

Old 23 February 2012, 10:26 PM
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Originally Posted by CP-Motorsport
Hey,

The weight saving from fitting uprated/lightweight pulley set's is amazing!
The weight reduction will lower the engines rotating mass which in turn will improve acceleration and enhance engine response.
Any rotating engine mass reduced is a +ve, Plus they look great in the engine bay...

We just so happen to have a group buy offer on these....>

https://www.scoobynet.com/group-buys...lley-sets.html

Hope this helps


lol its good to see that you gave some sound advice and you weren't just trying to sell some products lol
Old 23 February 2012, 10:30 PM
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johnlogie
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Originally Posted by CP-Motorsport
Hey,

The weight saving from fitting uprated/lightweight pulley set's is amazing!
The weight reduction will lower the engines rotating mass which in turn will improve acceleration and enhance engine response.
Any rotating engine mass reduced is a +ve, Plus they look great in the engine bay...

We just so happen to have a group buy offer on these....>

https://www.scoobynet.com/group-buys...lley-sets.html

Hope this helps

Originally Posted by johnlogie
lol its good to see that you gave some sound advice and you weren't just trying to sell some products lol
I'd like to also add if you are going for light weight products go to CDF Racing as they are well proven and have been scoobynet members for years :0)
Old 24 February 2012, 08:03 AM
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and rcm lol
Old 24 February 2012, 11:25 AM
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CP-Motorsport
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Originally Posted by johnlogie
I'd like to also add if you are going for light weight products go to CDF Racing as they are well proven and have been scoobynet members for years :0)
I'd just like to point out that we are a well known and established company, just because we are recent members/sponsors shouldn't take that away from us.
Hey we've all got to join this site and start sometime as a "newb"!
Many of our customers cars have been featured in total impreza and Japanese performance magazine, if in doubt check out our website.

As for RCM's pulleys, we're pretty confident in saying that they are proven to be tried and tested...!

Anyway as previously mentioned lightweight pulleys are worthwhile fitting for both the additional strength and the weight saving alone, not to mention getting rid of the old ugly looking OE pulleys (which by now are rusty and the rubber starting to perish).

Regards

Last edited by CP-Motorsport; 24 February 2012 at 11:35 AM.
Old 24 February 2012, 02:43 PM
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dbay
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Originally Posted by jura11
Have look on this thread on 22b

http://bbs.22b.com/cgi-bin/ultimateb...c;f=9;t=002217


Jura

also seen this thred opens your eyes a little.
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