Was going up hill, felt something, white smoke. HELP

[BFT]

Probably had a crack and went from there

 

[blk350on20s]

I replaced only my one piston that cracked. Mine wasnt from an injector though. Good luck. Let us know how it turns out

 

[Strokin6.4]

I think I'm just gonna put the one piston in it if it's only one. I mean if it's like Jeff says, I planned on doings 30s wouldn't it happen again do to lack of air?

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[jdgleason]

I think I'm just gonna put the one piston in it if it's only one. I mean if it's like Jeff says, I planned on doings 30s wouldn't it happen again do to lack of air?

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Wouldn't change until you addressed lack of airflow. If that's what caused it.

 

[Jeff@Spartan]

I would improve air flow before adding fuel.

 

[Strokin6.4]

Will a single 67fmw turbo help with air flow on stock fuel?

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[forcefed6.4ford]

A step back in keeping egts lower. Singles work well up top and are well suited to the track from 90% of the feed back on here. If you want to tow and keep things cool lower in the rpm band where 90% of us drive day to day, stay with stock or up grade the atmo to a 71 or the newly released 72.

 

[bigrpowr]

I broke 3 out of 4 on pass side. I think it was a combo of poor manifold flow and crappy intake elbow. Iirc the pass side is odd cylinders and the rear was broke with a hole in it, then moving forward each piston was cracked less and less. The fact it happened all on one side tells me the elbow can be a problem.

 

[Dzchey21]

Machining the pistons should make them more tolerable to heat and prevent cracks.

 

[Jmoore1225]

I broke 3 out of 4 on pass side. I think it was a combo of poor manifold flow and crappy intake elbow. Iirc the pass side is odd cylinders and the rear was broke with a hole in it, then moving forward each piston was cracked less and less. The fact it happened all on one side tells me the elbow can be a problem.

What elbow were you using, Are there any base line facts as which elbow is better/best @ getting airflow as evenly as possible? This just make me want to put stock turbos back on & unload my truck. Can't afford it & a boat breaking all the time.

 

[Strokin6.4]

Even with the upgraded manifolds and uppipes singles have it won't help move more air? I'm just thinking since I'm gonna have the motor out of it if need be I wanna build it how I want. But def not have it out twice

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[Dzchey21]

Singles will.make your egts higher while cruising

 

[MINK]

Even with the upgraded manifolds and uppipes singles have it won't help move more air? I'm just thinking since I'm gonna have the motor out of it if need be I wanna build it how I want. But def not have it out twice

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Elite 72 with your stock atmo - way better setup than going with a single IMO

 

[Strokin6.4]

Yeah maybe I'll just do 6.0 manifolds, wastegate along with whatever the motor needs. Then I'll figure out where to go. I really want fuel lol

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[White_monster]

More fuel = more cracked pistons.

 

[bigrpowr]

Mine cracked on stock injectors. But high boost . I was seeing 60-62.

 

[Strokin6.4]

More fuel = more cracked pistons.

Damn so the 6.4 is just unreliable stock or modded Wtf! 12v swap lol

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[White_monster]

We have excess fuel stock. Why add even more excess fuel?

 

[Strokin6.4]

Because the class I race on dirt is a work stock class. "Stock" turbos, pretty much however much fuel you want. And dommel on this site has like 110s and II pump and is running 12.0 in a crew cab.

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[White_monster]

Well then guess you have your answer. Do the airflow upgrades you can but with high comes cracked internals.