Pulley systems, what are they good for and worth the money?
 

I came across pulley systems, what do they accomplish and worth any investment?

Pulley systems? No.
Crank pulley? Some say it increases responsiveness, some say it eats bearings.
No one knows for sure, you will undoubtedly soon be shown a years old quote from "some dude at SOA" that claims the stock crank pulley is in no way a damper.

Not again. *sigh*

Ok , I realise my above response was not helpful but seriously, do you know about the search function on this forum. The most current thread is only 2 days old: http://www.ft86club.com/forums/showthread.php?t=71240
There have been numerous posts on the subject on this forum and countless other forums.

Have a look here:
http://www.ft86club.com/forums/showthread.php?t=61709
http://www.ft86club.com/forums/showthread.php?t=56931
http://www.ft86club.com/forums/showthread.php?t=47079
http://www.ft86club.com/forums/showthread.php?t=13259
http://www.ft86club.com/forums/showthread.php?t=43556
http://www.ft86club.com/forums/showthread.php?t=12450

What ever floats your boat.
"Huh, huh, huuuuuh..... I love you pulleys!..."
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Expensive bling that dollar for dollar is probably the worst investment ever, and it's not even visible 99.9% of the time.


(I have no ill will against companies that make the parts (well, maybe the crank pulley) simply because there is a demand for the parts so they meet the demand.)

Have you installed a LWCP on your 86 or any other Subaru engine?

Paperweight.
No.

I actually asked the same question and good some good replies, that said.... A LOT of people said it was great, a lot of people said it was bad, and a lot were unsure. I personally ordered mine and am waiting to get it installed so we'll see. I have a link to my build thread, you should subscribe to it as I'll post when I get them installed and what my thoughts and progress is.

That's like asking if I've shaved with mace in the dark...

I had the Perrin pulley installed and maybe, just maybe I could tell a difference as I left the workshop where it was fitted. Then again it may have been my mind trying to convince myself there had been an improvement. Another gentleman on these forums suggested there was a more noticeable difference when the aftermarket pulley was removed and the original put back on. The people who claim "zomg!! the car is now 15 seconds faster to 100" I think are kidding themselves.
It is a cheap mod. There might me an improvement. There is definitely a search button.

Just wondering if your were basing your opinion on actual experience.

The pulley or the shaving?

:laughabove: valid question , I really don't have any opinion on the subject except the less rotational mass on my car the better. Not going to bash something till I try it.

I said this in the last thread...


Res ipsa loquitur. The OEM part wouldn't be a multiple pieces unless it was required. There is no debate. The design intention is right there staring you in the face.


In other words, I can see it's a bad idea without trying it. I also know that such a small amount of mass that close to the axis of motion isn't going to do much. A lightweight flywheel will do far FAR more.


Though I was more talking about the full pulley systems that outside of the crank pulley are going to have just about zero effect on how the car drives. Any effect can be attributed to placebo...

.
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:lol:


I think Beck was talking about this kind of mace


http://www.northshorefirearms.com/si.../NSF/mace1.jpg

lol. I thought mace was a U.S. brand of anti-antiperspirant lol.

You'd think that if they were truly bad for your engine that, after years of being made and installed on multiple cars and engine platforms, there would be threads all over the internet of people with destroyed engines blaming their pulleys.
Lord knows there are plenty of people on every board out there bitching about their blown engines for one reason or another. I don't see any of those threads blaming pulleys.

These were my thoughts too... it's nowhere. However, it was highly recommended to do either a RW flywheel or RW pulley but not both. I'm went with a RW crank shift pulley and I'm gonna see how it goes.

I have about 30k miles on my LWCP, and not a issue. I seemed to be able to tell a difference at first, but that was a fleeting moment.

Yes there IS mention about how LWCP can destroy your engine.
The statments are made by @Infamous Performance in the last few pages of this thread.

http://www.ft86club.com/forums/showthread.php?t=71240

Agreed he mentions that he has seen engines with BOTH a LWFW & LWCP destroy an engine. SO he states that he never puts a LWCP WITH a LW FW. If using the LWFW he will only use the stock pulley?

I wonder why that is.....???... BECAUSE the stock pulley is a vibration damper(dampener) de-vibrational-thing.:bonk:

ANd yes there are a few on here that have had engine failures with the LWCP and a few that installed LWCP and hated them and took them off.

This sounds like the EGR issue on older Supras... Tons of people saying it doesn't hurt to remove it, but proof the ECU is tuned for it to be there and removing it can cause detonation. Of course the engine has a reputation of blowing headgaskets, but nobody ever looks for the cause, so the EGR is looked over.


Like I said, I'd rather put the money towards other things. Hell, you're half the price of an OpenFlash Tablet, which will actually show gains on a dyno...

Actually shows gains even on the butt dyno.

It is one mod that I will never question again.

My bold.
From what Infamous said it was not the lwcp per se, it was the combination of lw pulley and lw flywheel.
I am hypothesizing that the mass of the flywheel also plays a part in the harmonics of the crankshaft.

Why waste the time and money on something that has little to no return on investment AND can possibly destroy your motor?

1/ Mind over matter. Many people on many different forums have reported that their car feels faster just like their $700 Ebay coilovers are frickin' awesome.
2/ Their friends have one and it looks fantastic bro.
3/ People are free to spend/waste their money on what ever they like. The wife waste money on handbags, I waste money on my car.
4/ "Possibly" covers many areas of life. I can possibly get run over by a bus tomorrow. I can possibly crash my car at the track. The fact that a pulley might/possibly destroy an engine is not going to stop people from doing mods.

So basically it looks cool and it gives you hp on the butt dyno. What kind of actual hp numbers?

I have to say I like the Raceseng S2 pulley kit. My car feels great and so far no issues. Only been 3K miles but I just had a friend drive my car right after we went to lunch in his stock BRZ and he was like wow, quicker response and just plain peppier on acceleration.

To each their own, buyer beware. It was my money and my car so if it blows the motor I can only blame myself

I am suggesting more often than not it is a placebo.
I am also suggesting that any measured power increase would fall within experimental error.

Buyer be where they make the purchase but if they are buying dodgy goods they should beware.

Raceseng does not make dodgy products....... look how they stood behind their water pump pulley

The "dodgy" part is in the claims of how it can increase hp or reduce rotating mass....

Ok the truth is:
"Light weight crank pulleys can increase horse power (to numbers well within the repeatability of back to back dyno runs assuming NO CHANGES to the setup)" (meaning = ZERO)
and
"Light weight crank pulleys reduce the rotational inertia of the engine by about as much as using titanium bolts on your pressure plate instead of steel." (meaning = Close to zero)
and
"Light weight crank pulleys (solid billet) replace a three piece harmonic damper that was put on the engine by the engineers for........apparently no resaon whatsoever except to increase the overall vehicle weight".
(meaning - based on aftermarket parts suppliers, the original engineers of this engine had no idea what they were doing)

LOL you put so much effort into making out the pulley mod to be harmful for your engine and completely worthless. :w00t:

YET you tuned your engine. :bonk:

Something that guarantees voiding your warranty AND has blown peoples engine with proof that it came specifically from the tune.

I'm not saying OFT is a bad tune or has blown anyone's engine; it may be safe. My point is tunes are proven to destroy engines and void your warranty. :search:

2 things:

1 - Where did I say that I tuned MY engine? :D
2 - what has that got to do with LWCPs? other than a tune is more bang for your buck than pulleys?

And my whole point of getting into the discussion about LWCPs is that people were making claims that were in violation of basic physics (I cant stand that)

If they had said "These crank pulleys look really cool and reduce the overall vehicle weight" I would give it a huge thumbs up.

Using this same logic, I have determined that Ambulances are the #1 most dangerous vehicles in existence.
WHY? - Because OVER 80% OF PEOPLE WHO RIDE IN AN AMBULANCE END UP IN THE HOSPITAL!!

What happens to the other 20%? ;_;

'14 Firestorm FRS Build Thread:
http://www.ft86club.com/forums/showthread.php?t=71248

they are the drivers

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'14 Firestorm FRS Build Thread:
http://www.ft86club.com/forums/showthread.php?t=71248