SFI power bond damper
 

Anyone have experience with these you would share? I’m building an engine around 750-800 HP then going to spray another 250+ Nitrous. Should I just go ATI instead?


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I have a SFI Power Bond damper i bought about 15 years ago. It's performed flawlessly. But my engine only makes 521 HP crankshaft.

I’m using 2 of them on a couple of 455 base engines 550-600 hp. For the hp your wanting to go I think I would get something better. My2¢

My understanding is that once you get into the higher HP use an ATI balancer. The ATI balancer will move the pulley out a bit futher, and also I had to clear the timing cover a bit. Also, they use 3 bolt pulley with them.



I've used 2 SFI powerbond balancers on 600 hp for years with no issues.

I am going to be running a Power Bond damper on my current build of 500-550 HP. It looks like a nice balancer. But I don't think I would trust it at 1000 HP which is what your talking about. I know for a fact that the ATI balancers we ran on the Grocery Getter were flawless for 18 years at over 1000 HP. Never requiring anything. I know the cost and lack of a 4 bolt pulley attachment is an issue for some. But they are the best of the best. No experience with PowerBond at the power level you will be running.

I went with a Romac on my current build…. Seems like a decent unit. It did require some fitting as it was too tight on my aftermarket crank

Guys there is a fella selling power bond dampers on marketplace for $45. Not sure if it’s legit or what.


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Are you gonna buy one and put it on your 800 hp engine?

This is gonna sound condescending but why would you post that? You ask a legit question and people stepped up to answer your question with real world experience. Anybody with any experience wouldn't even look at a $45. balancer. They would already know it's a pos. Sorry if I hurt your feelings but focus on the topic, and maybe address your audience that are trying to help you make a wise decision..
Butler balancers for your reference, and what they cost from a reputable company.
https://butlerperformance.com/c-1234...s-dampers.html

Yeah I was just posting up for others who may want to buy it. I’m going with ATI based off the information you all gave me.


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They sell one that’s not sfi maybe that’s what you looked at?

No the one I looked at was SFI. Geez guys


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My ATI I bought in the late 80s early 90s. It is two piece and does take a 3 bolt Chevy pattern. I had to shorten the hub where it hits the crank gear as it kicked the pulley out 1/8" perfect now. I also had to enlarge the crank bolt recess to take a normal crank bolt washer as it was too small..
I found a Chevy pulley support ring that goes outside the pulleys like our Pontiacs have to use as a template for the holes. RARE can drill their aluminum pulleys for both patterns.

I think the Power Bond have an SFI and a non SFI one.,sounds cheap for an SFI one.

https://www.facebook.com/marketplace...6018002616681/


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That’s the one 1056 if those are not blems or something like that it’s a great deal. When I got a couple for $130.00 each I thought that was a great deal.

There is a difference between China SFI and USA made SFI parts. I would not put a Power Bond on a go cart.
ATI 3 bolt or a BHJ 4 bolt.

Yessir I’m going ATI


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Power bond is made in Australia not China. Even says so on the box. They are a division of Dayco. Day o headquarters are in Michigan.

I have had a Power Bond and PP balancer over the years, non SFI. Both moved, junk IMO. Maybe their SFI ones are better but they left a bad impression.
Saving a few bucks is not worth your engine. I ended up putting my stock one on the 455 that Dan Whitmore inspected, degreed, added timing marks to and sleeved the seal surface. Still on the engine.

It's always a good idea to degree-in the balancer, no matter what brand, even ATI. I then put a small witness mark on the hub and outer ring to check later after use. Power Bond looks like a stock style balancer and seems to have a decent reputation. But I mark them just in case.

I never said they weren’t junk. Just that the SFI ones are from China. I am sure they are okay in lower horse power applications. But I would try them on a engine making serious power. I haven’t bought a ATI balancer in years. But I am pretty sure they aren’t American made anymore.