Weighted Pulley

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 · 16 Jul 2011, 1:55 pm

#852003

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.

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 16 Jul 2011, 2:38 pm

#852015

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}

- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

Old Dubber Wolfsburg Wizard

605 posts · joined Aug 2002 · 16 Jul 2011, 5:13 pm

#852034

I would like to see some facts and figures

more weight means more energy to turn it

just my opinon

Grahame
visit my club site at www.vwdcqinc.org.au

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 16 Jul 2011, 6:01 pm

#852042

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

Newt Wolfsburg Wizard

478 posts · joined Mar 2008 · 17 Jul 2011, 1:03 pm

#852138

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

It is as it is - If you didnt enjoy today, you've missed the opportunity.

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 · 17 Jul 2011, 4:50 pm

#852192

matberry wrote: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?

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.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 17 Jul 2011, 6:36 pm

#852210

Smiley wrote: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 😎

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

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 · 17 Jul 2011, 7:06 pm

#852219

matberry wrote:
Smiley wrote: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 😎
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.

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.