Balancing plate

[lilsumo]

I am looking for some insight on using a balancing plate. What are the pro and cons of it. I am considering using it for a claimer engine that will never see anything above 5900 RPMS and the internally balance stuff is just a little high for a claimer engine.

Thanks

[500BOMBER]

Pros; They do work as far as balance is concerned.

Cons; 1- I have seen them crack and/or crack 'n break.
2- They space the flywheel out 1/8 th of an inch.(away from starter)

[dynoman14]

They work great as long as you have the plates that are at least 1/8" thick and decent quality. I have heard of some import copies shearing and causing a lot of problems. I have some that I have made for me that run $30 plus shipping and have never had a failure in 15 years and probably 100+ running. I am a pretty small shop so I don't sell a ton of them.

I also sell an economy harmonic balancer that is weighted for strokers and it goes for $99 plus shipping. It is as nice as some of the ones I have seen at more than double the price. With both of these on a normal stroker combination you end up with enough counter balance for 1900-2000 gram Bob Weight. I normally run 1-2% overbalance on stroker engines to keep harmonics down at 5700-5900rpm which is a killer spot for harmonics on many stroker engines. If you are running heavy stuff we can add another 100g to the flywheel for $50. If you are real heavy we can substitute the steel weight in the balancer for mallory ( tungsten +150g ) for $150.

I recommend running the stuff on an engine balancer before building the engine but I have had many customers bolt their stuff together and have no problems.

If you know the weights of your parts we can also send you out a pre-balanced crank to that bob-weight for $200 balancing cost. If you need help in figuring that out you can send me the weights and I'll calculate the bob-weights. Your crank & parts or my crank & parts either way is fine. I use a Hines Computer Balancer and final balance both high and low rpms to less than 0.5%.

[TBRE]

plates

We use them on the dyno, to keep from having to have too many different flywheels.TB