Harmonic balancer weight and its effects ???

Bernhard · 07-31-2020, 07:09 PM

Harmonic balancer weight and its effect on performance?
If one reduces the balancers weight and makes correction to any imbalance
on the crankshaft.
Might one see an increase in HP and how quick the engine spins up?
Thanks
Bernhard

L.Fite · 07-31-2020, 08:06 PM

Theoretically yes... enough to notice?... I doubt it.
How much can you take off a balancer?... a lb maybe?
It's not like taking 10 lbs off of a flywheel.
Just an opinion, others may know more.

Ed Wright · 07-31-2020, 09:20 PM

Quote:

Originally Posted by L.Fite

Theoretically yes... enough to notice?... I doubt it.
How much can you take off a balancer?... a lb maybe?
It's not like taking 10 lbs off of a flywheel.
Just an opinion, others may know more.

The above, and the smaller diameter of a dampener, versus a flywheel, the effect on inertia won’t be big.

Stan Weiss · 07-31-2020, 10:00 PM

Exactly. Plus it also depended on how fast the rate of acceleration of the engine is. A 1 lb weight on the outside of a 6" diameter accelerating at 2000 RPM per second at 7000 RPM is taking less than 0.54 HP. Where as that 1 lb on the outside of a 12" diameter accelerating at 2000 RPM per second at 7000 RPM is taking 2.17 HP.

Stan

Cotten · 07-31-2020, 10:34 PM

I put it in the category of things that dont show a measurable increase but when added to 50 other things like that, all of a sudden your a little faster. Lol

Bernhard · 08-01-2020, 11:06 AM

Thanks you for your insightful replies to my question.
Bernhard

GTX JOHN · 08-02-2020, 02:34 AM

Quote:

Originally Posted by Cotten

I put it in the category of things that dont show a measurable increase but when added to 50 other things like that, all of a sudden your a little faster. Lol

I put in category of things that don't show a measurable increase but when
added to 50 other things like that, all of a sudden you're a whole lot poorer. Lol

AND THEN = Your crank is in two pieces!

07-31-2020, 07:09 PM	#1
Bernhard Junior Member Join Date: Jan 2012 Posts: 30 Likes: 0 Liked 1 Time in 1 Post	Harmonic balancer weight and its effects ??? Harmonic balancer weight and its effect on performance? If one reduces the balancers weight and makes correction to any imbalance on the crankshaft. Might one see an increase in HP and how quick the engine spins up? Thanks Bernhard

07-31-2020, 08:06 PM	#2
L.Fite Member Join Date: May 2020 Posts: 390 Likes: 390 Liked 353 Times in 177 Posts	Re: Harmonic balancer weight and its effects ??? Theoretically yes... enough to notice?... I doubt it. How much can you take off a balancer?... a lb maybe? It's not like taking 10 lbs off of a flywheel. Just an opinion, others may know more.

07-31-2020, 10:00 PM	#4
Stan Weiss Senior Member Join Date: Apr 2020 Location: Phila, PA Posts: 607 Likes: 0 Liked 545 Times in 291 Posts	Re: Harmonic balancer weight and its effects ??? Exactly. Plus it also depended on how fast the rate of acceleration of the engine is. A 1 lb weight on the outside of a 6" diameter accelerating at 2000 RPM per second at 7000 RPM is taking less than 0.54 HP. Where as that 1 lb on the outside of a 12" diameter accelerating at 2000 RPM per second at 7000 RPM is taking 2.17 HP. Stan

07-31-2020, 10:34 PM	#5
Cotten Member Join Date: Aug 2007 Posts: 219 Likes: 452 Liked 485 Times in 58 Posts	Re: Harmonic balancer weight and its effects ??? I put it in the category of things that dont show a measurable increase but when added to 50 other things like that, all of a sudden your a little faster. Lol Last edited by Cotten; 08-01-2020 at 08:54 AM.

08-01-2020, 11:06 AM	#6
Bernhard Junior Member Join Date: Jan 2012 Posts: 30 Likes: 0 Liked 1 Time in 1 Post	Re: Harmonic balancer weight and its effects ??? Thanks you for your insightful replies to my question. Bernhard