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 Smiley
A.k.a.: Daniel Stephens
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| posted on July 16th, 2011 at 01:55 PM |
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Weighted Pulley
Is one of these weighted pulleys a worthwhile addition to an offroad vehicle?
I've just purchased a new engine and need to add a pulley to it. I was looking for a replacement sand seal so I can run the kit I have on my current
engine when I stumbled on this.
http://www.vwparts.net/MB16-9700.html
More rotational inertia should give better low down torque correct? Or is it not the norm to run one of these unless you have a lightened
flywheel??
Smiley 
If you said I was a Volkswagen man, you'd be right.
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68AutoBug
A.k.a.: Lee Noonan
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 posted on July 16th, 2011 at 02:38 PM |
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I believe they just balance the crankshaft better...
Maybe they are used mainly with counterweighted crankshafts??
LEE
Still sounds like a good idea... [like two flywheels}
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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Old Dubber
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| posted on July 16th, 2011 at 05:13 PM |
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I would like to see some facts and figures
more weight means more energy to turn it
just my opinon
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 matberry
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| posted on July 16th, 2011 at 06:01 PM |
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Bergs recommendations are to run the extra weight on a C?W crank and lightened flywheel. The extra mass is to help absorb engine harmonics.
Proof.....dunno about that, although I would use one esp. with an extra light flywheel. What engine combo have you bought?
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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Newt
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| posted on July 17th, 2011 at 01:03 PM |
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I would have thought that if it works as advertised (remembering that most cars on the road have harmonic balancers), then wouldnt it be more
beneficial on a non c/w crank.
ie - Doesnt a C/W crank already help with the vibration / haromincs issue.
Newt
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Smiley
A.k.a.: Daniel Stephens
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| posted on July 17th, 2011 at 04:50 PM |
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| Quote: | Originally
posted by matberry
Bergs recommendations are to run the extra weight on a C?W crank and lightened flywheel. The extra mass is to help absorb engine harmonics.
Proof.....dunno about that, although I would use one esp. with an extra light flywheel. What engine combo have you bought?
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It's a 2054
94 bore and 74 stroke.
Los Panchitos Heads
Scat C20 cam.
Twin 40mm Kads.
Just thought it might help with some low down pulling grunt. I don't have a lightened flywheel and I don't really intend on running one.
Smiley 
If you said I was a Volkswagen man, you'd be right.
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matberry
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| posted on July 17th, 2011 at 06:36 PM |
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| Quote: | Originally
posted by Smiley
It's a 2054
94 bore and 74 stroke.
Los Panchitos Heads
Scat C20 cam.
Twin 40mm Kads.
Just thought it might help with some low down pulling grunt. I don't have a lightened flywheel and I don't really intend on running one.
Smiley
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Woo Hoo  you wont no yourself . Sounds like a good combo. In that case, if you like it, I'd go for it. The mass won't hurt the baja and
steel wont wear quickly like the non-annodised alloy ones.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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Smiley
A.k.a.: Daniel Stephens
Veteran Volks Folk
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| posted on July 17th, 2011 at 07:06 PM |
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| Quote: | Originally
posted by matberry
| Quote: | Originally
posted by Smiley
It's a 2054
94 bore and 74 stroke.
Los Panchitos Heads
Scat C20 cam.
Twin 40mm Kads.
Just thought it might help with some low down pulling grunt. I don't have a lightened flywheel and I don't really intend on running one.
Smiley
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Woo Hoo you wont no yourself . Sounds like a good combo. In that case, if you like it, I'd go for it. The mass won't hurt the baja and
steel wont wear quickly like the non-annodised alloy ones.
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Yeah. I'm super excited. I can't wait to get it in the car.
I think I'll get one. I've heard they are meant to help reduce harmonics or something too? And if it helps engine life and runs smoother I'm all
for it.
Smiley 
If you said I was a Volkswagen man, you'd be right.
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