Oil Drain backs

Unfortunately it looks like the oiling issues ended badly.

Things did end poorly last night. Oiling issue had been remidied with winter freshening. Never held less than 70 psi at rpm this year.

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EverySparePenny wrote:Things did end poorly last night. Oiling issue had been remidied with winter freshening. Never held less than 70 psi at rpm this year.

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Sorry man been there it's not fun.

Sucks but such is the the game. Bigger badder better time

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So what happened??...did it blow up at the track??

It did. Not sure on extent of damage but #8 rod is not where it is supposed to be. Neither is the coolant or the oil.

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https://youtu.be/cHm0_WsgJRA

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Damn, that is a very nice truck, there Brother!! Sounded very good during the pull.

Thank you. Truck was on a mission still had some momentum after the engine died

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EverySparePenny wrote:Thank you. Truck was on a mission still had some momentum after the engine died

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Did you win sounds like you had the lead?Sucks that the engine blew though!!

I did not. I was only the fourth truck down the track of 14. I was at 299 and change first place truck was 324 and change. I ended up 6th.

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what rods where you running in that engine?

Eagle, H beams. Purchased nearly 10 years ago but only have 1.5 seasons of use.

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EverySparePenny wrote:Eagle, H beams. Purchased nearly 10 years ago but only have 1.5 seasons of use.

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Do you remember the Bob weight? Weight of the pistons?

You where having issues with bearings correct?

I do not off hand.

Had oil pressure issues last season but never any failure, all wear surfaces actually looked pretty good.

I'll try to round up that balance info

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Hopefully this works and is legible

since you need to do a new rotating assembly, I'd work on getting that bob weight down.

This area is somewhat greek to me, but you mean lighter piston/rod combo, correct?

EverySparePenny wrote:This area is somewhat greek to me, but you mean lighter piston/rod combo, correct?

Yes including the crank shaft, with the way you guys are spinning the bejeezus out of these things it can't hurt to have a lighter assembly at the RPM.

I'm not normally an aluminum rod guy, but id consider using longer aluminum rods and pistons with a much shorter pin height, Light pins and pistons with some higher end options.

Ah we don't spin em that fast........ LOL

Thank you sir

EverySparePenny wrote:Ah we don't spin em that fast........ LOL

Thank you sir

8500-9000 for 30 seconds is a lot to ask out of eagle rods and heavy pistons.

dfree383 wrote:

EverySparePenny wrote:Ah we don't spin em that fast........ LOL

Thank you sir

8500-9000 for 30 seconds is a lot to ask out of eagle rods and heavy pistons.

Concur, I'm not quite to that rhelm yet, but I hope to be with the new powerplant.

EverySparePenny wrote:

dfree383 wrote:

EverySparePenny wrote:Ah we don't spin em that fast........ LOL

Thank you sir

8500-9000 for 30 seconds is a lot to ask out of eagle rods and heavy pistons.

Concur, I'm not quite to that rhelm yet, but I hope to be with the new powerplant.

I started with Eagle H-beams and went with Oliver billet after having a rod failure at 7500. The 468 in my puller regularily buzzed 8600 with the Oliver's and would go over 9000 when I put the cut bar tires on. Never had a failure and the motor is still going strong today. I must add though that no expense was spared on the motor. You have to have superior parts, machining and an engine builder that knows how to make it live at these levels!

HorsinAround wrote:

EverySparePenny wrote:

dfree383 wrote:

EverySparePenny wrote:Ah we don't spin em that fast........ LOL

Thank you sir

8500-9000 for 30 seconds is a lot to ask out of eagle rods and heavy pistons.

Concur, I'm not quite to that rhelm yet, but I hope to be with the new powerplant.

I started with Eagle H-beams and went with Oliver billet after having a rod failure at 7500. The 468 in my puller regularily buzzed 8600 with the Oliver's and would go over 9000 when I put the cut bar tires on. Never had a failure and the motor is still going strong today. I must add though that no expense was spared on the motor. You have to have superior parts, machining and an engine builder that knows how to make it live at these levels!

Agreed, got to watch the lower end stuff when you start hitting these levels of abuse, the better rods tend to hold their shape and not distort.

HorsinAround wrote:

EverySparePenny wrote:

dfree383 wrote:

EverySparePenny wrote:Ah we don't spin em that fast........ LOL

Thank you sir

8500-9000 for 30 seconds is a lot to ask out of eagle rods and heavy pistons.

Concur, I'm not quite to that rhelm yet, but I hope to be with the new powerplant.

I started with Eagle H-beams and went with Oliver billet after having a rod failure at 7500. The 468 in my puller regularily buzzed 8600 with the Oliver's and would go over 9000 when I put the cut bar tires on. Never had a failure and the motor is still going strong today. I must add though that no expense was spared on the motor. You have to have superior parts, machining and an engine builder that knows how to make it live at these levels!

Was the 468 on a factory crank, out of curiosity?