Smaller diameter balancer?
Thread Starter
Race Director
Joined: Jun 2004
Posts: 13,922
Likes: 700
From: WI
Smaller diameter balancer?
I'm looking at replacement balancer options. A stock type is 6.75" and weighs 8.16 lbs. A 6.12" weighs 4.63 lbs. Is running one that's 5/8" smaller bad?
I'm thinking about this one for my '88:
http://store.summitracing.com/partde...872001&FROM=MG
I'm thinking about this one for my '88:
http://store.summitracing.com/partde...872001&FROM=MG
Safety Car
Joined: Jan 2008
Posts: 3,939
Likes: 1
From: Vero Beach Florida
Interesting, is the pulley the same as the one for the larger balancer, I wonder if 2lbs. would make a difference. The frisbee doesn’t weight any where near 2lbs and dose when removed, so you would think it would.
Melting Slicks
Joined: Nov 2005
Posts: 2,736
Likes: 0
From: WAY UPSTATE NY
Why would it be bad? You are still internaly balanced.. I replaced an 8" damper with a 6 & 3/8" Fluidampr (would have to look up the exact size)
7 or 8 years ago on a 355 marine engine. Those motors run under full load ALL the time. Never a problem to this day. Your motor is still internally balanced?
7 or 8 years ago on a 355 marine engine. Those motors run under full load ALL the time. Never a problem to this day. Your motor is still internally balanced?
Thread Starter
Race Director
Joined: Jun 2004
Posts: 13,922
Likes: 700
From: WI
nutz4c4, yes it's still the stock long block. I'm thinking if I had a stroker I'd stay with a larger/fluid type dampener.
Guys, yes the pulley is the same it just bolts to the balancer. A smaller one will absorb less but I figure this one to be better then stock so maybe it's a horse a piece. More vibes in the engine would produce more wear. It doesn't balance the engine so it's weight in that regard doesn't matter.
Guys, yes the pulley is the same it just bolts to the balancer. A smaller one will absorb less but I figure this one to be better then stock so maybe it's a horse a piece. More vibes in the engine would produce more wear. It doesn't balance the engine so it's weight in that regard doesn't matter.
Safety Car
Joined: Jan 2008
Posts: 3,939
Likes: 1
From: Vero Beach Florida
Mine was doing the same I just replaced it, not a bad on a L98 couple hours.
Do they re-adjust the timing mark so it lines up with the timing tab on the smaller balancer?
You might know this already but a fast & easy way to loosen the crank bolt is to use a 5/8 socket & 1/4 drive ratchet set to loosen, brace it against the frame drivers side and just bump the key once, the engine rotation breaks the torque on the crank bolt.
Do they re-adjust the timing mark so it lines up with the timing tab on the smaller balancer?
You might know this already but a fast & easy way to loosen the crank bolt is to use a 5/8 socket & 1/4 drive ratchet set to loosen, brace it against the frame drivers side and just bump the key once, the engine rotation breaks the torque on the crank bolt.
Last edited by floridamale; Apr 6, 2009 at 06:16 PM.
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Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
nutz4c4, yes it's still the stock long block. I'm thinking if I had a stroker I'd stay with a larger/fluid type dampener.
Guys, yes the pulley is the same it just bolts to the balancer. A smaller one will absorb less but I figure this one to be better then stock so maybe it's a horse a piece. More vibes in the engine would produce more wear. It doesn't balance the engine so it's weight in that regard doesn't matter.
Guys, yes the pulley is the same it just bolts to the balancer. A smaller one will absorb less but I figure this one to be better then stock so maybe it's a horse a piece. More vibes in the engine would produce more wear. It doesn't balance the engine so it's weight in that regard doesn't matter.
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
I would not hesitate to go smaller, but I would get an ATI Fluid balancer.... they say, "the larger the mass, the better the damper performs in terms of harmonics"
I don't go beyond 6300rpm so.....
I don't go beyond 6300rpm so.....
