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Guys that have broken shafts (Johnny and the black HC in Texas, any others), have you had any more problems since replaced? Do you think the replacement shaft is stronger?
Yes it is I have sold 9 put in 3 peice of mind for the 900 bucks
 
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Guys that have broken shafts (Johnny and the black HC in Texas, any others), have you had any more problems since replaced? Do you think the replacement shaft is stronger?
Still have stock DS on now and used it at the track with no problems last week! Waiting on new aluminum one piece to come in!
 

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Still have stock DS on now and used it at the track with no problems last week! Waiting on new aluminum one piece to come in!
did FCA warranty it? I thought you had issue with stock drive shaft at track?
 

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I think there is something up with that 10.48 pass no that I had my car and been to the track
Yep , you now see how much power it takes to move this big boy . I have been discussing that 10.48 run with a few others while waiting in between runs at the track , It just doesn't seem possible for the Hellcat engine to self adjust automatically and increase horsepower without a tune on 109 octane !
 

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Yep , you now see how much power it takes to move this big boy . I have been discussing that 10.48 run with a few others while waiting in between runs at the track , It just doesn't seem possible for the Hellcat engine to self adjust automatically and increase horsepower without a tune on 109 octane !
Correct
 

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I think you guys need a tank full of 109 to either prove that it works or dispel the myth. If anyone can you guys could run a 10.4 if it really works.
A piece of advice. I know the carbon DS is a bit more $. I have read somewhere that the carbon shaft cushions the impact on the drive train. Gives the diff, gearbox and half shafts a little easier time because of the torque reaction through the carbon fibre. I hope I am making sense. Would you guys agree.
I'm not so worried about the DS but I don't want to lunch the A8 as I am on my own over here
 

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I think you guys need a tank full of 109 to either prove that it works or dispel the myth. If anyone can you guys could run a 10.4 if it really works.
A piece of advice. I know the carbon DS is a bit more $. I have read somewhere that the carbon shaft cushions the impact on the drive train. Gives the diff, gearbox and half shafts a little easier time because of the torque reaction through the carbon fibre. I hope I am making sense. Would you guys agree.
I'm not so worried about the DS but I don't want to lunch the A8 as I am on my own over here
That's my plan next time out drain my tank and 109
 

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So using two calculators and let's say both cars are 4300 lb
We know Doc did 128 mph yesterday and he is damn straight, that calculates to 704 rwhp. That is going to be tough to beat, stock.

Now let's consider the 10.48 he also showed 131 mph. The same calculators indicate that requires 754 rwhp. No flipping way! I have said that before I owned one and before some of us put the power to the street and now the tracks. Still I am still saying no flipping way, he had to be adding something sweet to that intake stream somewhere.
 

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So using two calculators and let's say both cars are 4300 lb
We know Doc did 128 mph yesterday and he is damn straight, that calculates to 704 rwhp. That is going to be tough to beat, stock.

Now let's consider the 10.48 he also showed 131 mph. The same calculators indicate that requires 754 rwhp. No flipping way! I have said that before I owned one and before some of us put the power to the street and now the tracks. Still I am still saying no flipping way, he had to be adding something sweet to that intake stream somewhere.
Cars are like 4500
 

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I did not want to use that number Doc.....you are busting the HP bank!
You know these things are monster underrated! I am going to take some guys out for some dinner at the job, see the Forum later this evening....have fun, I don't want to run the bigger number my calculator will explode.
 
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How does the Carbon shaft like the heat from being tucked between the exhaust and body ? I seen a sticker on one that said avoid over 300 deg
View attachment 9947
It says areas near the bonds. I think that is where the CF is bonded to the yoke at each end. Probably fine but I'm just guessing. Call DSS and ask them.
 
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