broken billet input shafts

[black6.4]

I've broken every hard part and have replaced everything with billet. Wheel hop kills and I have broken one by downshifting once. Sh1t breaks when you make power lol

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I guess thats a good way to look at it! Hopefully ill know whats broke later today

 

[Super08Duty]

This have anything to do with having a big single in power rolling in later in rpm do you think?

Possibly. But on the same note, singles have a pretty drastic power curve. So when it spools,
It's very snappy. I know mike and Craig have broken pallets of trannies with singles lol. I also don't go full throttle down rough roads so that I don't snap shafts.

 

[3brorce]

Ya I hear ya. They also launch the dog piss out of them as well.

 

[black6.4]

Tcs shaft in middle the other two are stock the tcs twisted way more than stock before breaking

 

[black6.4]

Converter has to be opened to be checked out and have the remainder of the broken shaft removed.
AGAIN!

 

[kyle43335]

Converter has to be opened to be checked out and have the remainder of the broken shaft removed.
AGAIN!

been through that a time or 2.

 

[weekendwarriorfsw32]

I have broken 2 input shafts and 1 intermatiate shaft in my elite trans. Matt's tunning has seen to help out a lot in my 450 but I can't even remeber the last time I put it to the floor from a dead stop. Right now my stock input shaft has been holding up the best LOL Just scared to invest 650 bucks and go out and snap it! I want to see more people running it first ans see how it does.

 

[black6.4]

Well my Converter guy just called and said there is no clutches left, there are discs bent and other peices crushed and of coarse the broken billet shaft....now he told me that this is happening because the converter is seing too high of pressure and that it cannot regulate pressure so long story short hes saying that the problem most likely lies in my trans tuning! But my stock trans never did this? Does anyone have any answers to this problem?

 

[BOSS450]

Who's tuning? I went through a few shafts and torque converters on KEM tuning. Hear head now and everything is fine.

 

[black6.4]

Running the 345....but why didnt this happen with my stock trans and converter?

 

[BOSS450]

Looks like there is your problem. I'm sure the old one would slip a little instead of lock instantly. Give gear head a call

 

[madman1234509]

Running the 345....but why didnt this happen with my stock trans and converter?

Stock trans requires more pressure to keep from slipping. Aftermarket, not so much.

 

[black6.4]

So any more votes to the tuning? And i wouldnt mind trying someone elses tunes but i have i think the first dashdaq that came out for a tuner so it would be spendy getting another one unless someone wants to deal

 

[madman1234509]

minimaxx, gearhead tuning, possibly let him know what your set up is as well. Problem solved...

 

[black6.4]

Ya something has to be done.im hoping some of the tuner fellows will chime in here...what about the extreme x tune that just made impressive numbers on black350's truck? Im running pretty close to the same setup plus a 59 vgt

 

[3brorce]

Tuning cant be blamed. You were were stock tcm tuning with a built trans.

 

[BOSS450]

Tuning cant be blamed. You were were stock tcm tuning with a built trans.

I requested a tune for a built trans. Ran the same tune as the OP And I went through 3 shafts and two torque converters. Please explain your logic.

 

[black6.4]

Yes please explain im on my second failure in one summer

 

[3brorce]

I am saying its the owner of the truck running a stock trans tune in a built trans's fault for not changing tunes. If you were running a built trans file then clearly it couid be tune related. I had taken it as running stock trans tunes with a built trans was the problem.

 

[black6.4]

How is the 345 tune with el a stock trans tune? Little confused on that