Suggestion on Harmonic balancer?

[mikemustang289]

I currently have the a stock 5.0 50oz balancer with the motor I am building,

since the rotating assembly is getting rebalanced (changed flywheel, clutch, rod bolts) I thought it would be wise to change the balancer?

I need a 50 oz balancer for an early 3 bolt crank pulley setup. Typically this would be the same balancer you'd put on a 5.0 except it requires a spacer.

The only company I can find is CAT, which I've heard mixed feelings about and some have said their stuff is junk

I don't want to spend $400 on a balancer, even something used will work but eBay has nothing.

If I use a stock 4 bolt balancer it will require me to get a special pulley from March which is $100, so if I can get a balancer for under $200 I can eliminate the need for a new pulley and at the same time have a better balancer.

Any ideas?

 

[HISSIN50]

I would be seeing if I could get Rick's attention - I bet he has a nice answer for ya.

Good luck.

 

[SeventyMach1]

http://www.speedwaymotors.com/xq/aspx/display_id.1802/qx/product.htm

 

[304billet]

why not balance the rotating assembly at 28oz imbalance instead of 50. It is easier on the engine.

I would buy nothing from CAT, even though I had a CAT 4340 forged steel rotating assembly, went 25,000 miles in a daily driven hard driving 347 stroker. when it was refreshed crank needed turned down 10/10 and rods needed resized. I just don't like cheap chinese stuff now.

 

[FordGuy88]

Better yet get it 0oz internally balanced.

 

[mikemustang289]

what is involved in changing the balance? do they have to cut away large portions of the crank?

My flywheel is 50oz but i can remove the weight. I can get a 28oz or 0 balance damper fairly easy for a 3 bolt pulley.

This assembly has already been balanced before to 50oz, the crank was drilled in few spots and mallory was added in a few places as well, I just don't want a crank that looks like swiss cheese and could possibly weaken the crank as well

 

[wild86stang]

If you're like me, the lighter balancing is cost restrictive. I'm looking at this Pioneer balancer from Summit. http://store.summitracing.com/default.asp?Ntt=PIO-872030&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp&x=10&y=8
It's SFI-approved, so I'm thinking it should be good quality. Hopefully we'll get some advice on it.

 

[HISSIN50]

If you're like me, the lighter balancing is cost restrictive. I'm looking at this Pioneer balancer from Summit. http://store.summitracing.com/default.asp?Ntt=PIO-872030&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp&x=10&y=8
It's SFI-approved, so I'm thinking it should be good quality. Hopefully we'll get some advice on it.

That is a nice unit. Even their non-SFI unit (3021 IIRC) does well for us milder folks.