MY BIG 6.7 BUILD

Swsignal5 · Oct 17, 2015

97stoker350 said:
why would you use a part that is proven to break oil pump gears with this big of a build and hp goal?

There really no other options than factory and I don't wanna run a factory one.

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97stoker350 · Oct 17, 2015

Ati?

Never mind they don't have one yet.. Atleaat not on the website

Swsignal5 · Oct 17, 2015

97stoker350 said:
Ati?

Never mind they don't have one yet.. Atleaat not on the website

I ran this balancer on my other motor with close to 700 hp at 4500 rpm with no issues.

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WhiteMamba_Scorpion · Oct 18, 2015

Nothing wrong with the stock one and a balanced assembly. Not my truck though. Hope it works

Sent from a mountain top in Appalachia

Swsignal5 · Oct 18, 2015

WhiteMamba_Scorpion said:
Nothing wrong with the stock one and a balanced assembly. Not my truck though. Hope it works

Sent from a mountain top in Appalachia

It's fully balanced. Almost 200 grams to true it.

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Morgan@Midwest Diesel & Auto · Oct 18, 2015

The problem is to make a fluidamper work, you have to spin it over a certain rpm for so long (as per fluidamper) to make the viscous fluid equalize. Otherwise it will be settled and not balance out. We've done this with gas engines. You can balance the crank, let it sit over night the fluid moves and then run the balance again and it will be off. Re-balance, let it sit and it will be off again. There is no way to truly balance a fluidamper. The only way is to balance using stock. Then if you absolutely had to run a fluidamper you would have to switch and hope the balance holds true.

I ran a new stock balancer on mine and it ran 6k rpm. And I never once had a issue with oil pump or bearings.

To each his own. But seems like you had to add a lot of heavy metal to the crank. But then again we don't use Carrillo rods either. So I don't know their weight.

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lincolnlocker · Oct 18, 2015

Morgan@Midwest Diesel & Auto said:
The problem is to make a fluidamper work, you have to spin it over a certain rpm for so long (as per fluidamper) to make the viscous fluid equalize. Otherwise it will be settled and not balance out. We've done this with gas engines. You can balance the crank, let it sit over night the fluid moves and then run the balance again and it will be off. Re-balance, let it sit and it will be off again. There is no way to truly balance a fluidamper. The only way is to balance using stock. Then if you absolutely had to run a fluidamper you would have to switch and hope the balance holds true.

I ran a new stock balancer on mine and it ran 6k rpm. And I never once had a issue with oil pump or bearings.

To each his own. But seems like you had to add a lot of heavy metal to the crank. But then again we don't use Carrillo rods either. So I don't know their weight.

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this is what made my mind up to go back to a stock damper..

speaking of fluidamper, you still got one of a certain 7.3 laying around your shop?

live life full throttle

bigrpowr · Oct 19, 2015

lincolnlocker said:
this is what made my mind up to go back to a stock damper..

speaking of fluidamper, you still got one of a certain 7.3 laying around your shop?

live life full throttle

its not any issue on a 7.3 , i ran one for years. on a 6.7 , no way jose .

lincolnlocker · Oct 19, 2015

bigrpowr said:
its not any issue on a 7.3 , i ran one for years. on a 6.7 , no way jose .

1st time i paid for balancing to be done at mikes diesel performance in Chelsea Mi on my stock rod motor and it was never done.. had a fluidamper installed at the time also.. thought all was well till other issues popped up. took it to morgan and i opted for billet rods this go round so morgan explained to me what he said above about the damper so we went back to a stock damper and he actually got the rotating assembly balanced...

and my fluidamper is still at his shop.. i think.. lol

live life full throttle

Swsignal5 · Oct 19, 2015

Morgan@Midwest Diesel & Auto said:
The problem is to make a fluidamper work, you have to spin it over a certain rpm for so long (as per fluidamper) to make the viscous fluid equalize. Otherwise it will be settled and not balance out. We've done this with gas engines. You can balance the crank, let it sit over night the fluid moves and then run the balance again and it will be off. Re-balance, let it sit and it will be off again. There is no way to truly balance a fluidamper. The only way is to balance using stock. Then if you absolutely had to run a fluidamper you would have to switch and hope the balance holds true.

I ran a new stock balancer on mine and it ran 6k rpm. And I never once had a issue with oil pump or bearings.

To each his own. But seems like you had to add a lot of heavy metal to the crank. But then again we don't use Carrillo rods either. So I don't know their weight.

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It was balanced with the stock balancer and also I would never run Carrillo rods. I have R&R.

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Swsignal5 · Oct 19, 2015

lincolnlocker said:
1st time i paid for balancing to be done at mikes diesel performance in Chelsea Mi on my stock rod motor and it was never done.. had a fluidamper installed at the time also.. thought all was well till other issues popped up. took it to morgan and i opted for billet rods this go round so morgan explained to me what he said above about the damper so we went back to a stock damper and he actually got the rotating assembly balanced...

and my fluidamper is still at his shop.. i think.. lol

live life full throttle

Yeah fluidamper says that's the crank can not be balanced with their balancer. It's done with the factory one.

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sootie · Oct 19, 2015

why use a part that is the common denominator in many failures???

go stock and don't look back...

Swsignal5 · Oct 19, 2015

sootie said:
why use a part that is the common denominator in many failures???

go stock and don't look back...

You guys got me thinking. I'm gonna check into it.

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HS-MotorsportsDallas · Oct 19, 2015

I just talked with a friend from ATI and he said they were finishing up some R&D and should be on to production shortly.

The only reason I would be interested in an aftermarket dampener would be to run quicker than 10.99 at some point. Quicker than 10.99 requires an SFI 18.1 dampener.

Hopefully someone steps up their game.

Morgan@Midwest Diesel & Auto · Oct 19, 2015

bigrpowr said:
its not any issue on a 7.3 , i ran one for years. on a 6.7 , no way jose .

I have seen a few 7.3 lpop gears break. But not near as many as 6.0, 6.4 or 6.7. If it's balanced with factory and then swapped that's your best chance of it working. And I have nothing personal against fluidamper. People have had success with them. I just will not personally run one. On anything.

Swsignal5 said:
It was balanced with the stock balancer and also I would never run Carrillo rods. I have R&R.

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Good deal

Swsignal5 said:
Yeah fluidamper says that's the crank can not be balanced with their balancer. It's done with the factory one.

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Yep that's what I was getting at.

HS-MotorsportsDallas said:
I just talked with a friend from ATI and he said they were finishing up some R&D and should be on to production shortly.

The only reason I would be interested in an aftermarket dampener would be to run quicker than 10.99 at some point. Quicker than 10.99 requires an SFI 18.1 dampener.

Hopefully someone steps up their game.

Agreed. The stock one is so light and well constructed the only real reason to swap would be SFI. And I am sure the ati will work better than even oem.

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HS-MotorsportsDallas · Oct 19, 2015

Morgan@Midwest Diesel & Auto said:
I have seen a few 7.3 lpop gears break. But not near as many as 6.0, 6.4 or 6.7. If it's balanced with factory and then swapped that's your best chance of it working. And I have nothing personal against fluidamper. People have had success with them. I just will not personally run one. On anything.

Good deal

Yep that's what I was getting at.

Agreed. The stock one is so light and well constructed the only real reason to swap would be SFI. And I am sure the ati will work better than even oem.

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I wonder how many people have balanced their assembly with the Fluidampr? If they did, that's part of the problem already. You can't balance a rotating assembly with a Fluidampr installed as mentioned above. The Fluidampr needs torsional vibration to excite the internal inertia ring for it to be properly balanced. Every engine has torsional vibration as soon as it fires and with each powerstroke of the engine. However, a balance machine does not, therefore, the engine builder will chase a slight imbalance of the internal inertia ring settling each time the balance machine stops.

I agree that the stock damper is probably sufficient for any current build on these trucks. You have obviously proven that they can handle quite a bit.