6.7L Carnage - Testing the limits

[zippyrat]

Thank you, I totally agree. The fuel control is easily there with a twin pump system. Now we just need to figure out the best turbo/trans/rotating assembly modifications to reliably live at 750HP. I am excited for what the future holds.

yeah and i will actually look at the tune next time before jumping out there.
haha :morons:

 

[Dzchey21]

Hey back to the trans thing, i think this is the same thing we discussed bently about my truck in texas, i think if the truck senses some converter slip it kicks it out of lock up to try and save the trans/converter, i would bet this is the same thing that happened today.


Lock up switch might be the cure or finding the table that will just keep it locked not matter how bad the thing slips

 

[zippyrat]

Hey back to the trans thing, i think this is the same thing we discussed bently about my truck in texas, i think if the truck senses some converter slip it kicks it out of lock up to try and save the trans/converter, i would bet this is the same thing that happened today.


Lock up switch might be the cure or finding the table that will just keep it locked not matter how bad the thing slips

thats what they had to do on the allision so that makes allot of sense

or maybe turn it to the hot mode table like 5r110

 

[01PSD]

I have yet to hear of a grenaded trans... Mind you there aren't that many high HP trucks yet but still

 

[Purdue_stroker]

I'm just trying to figure out what I'm gonna do when my daily driver 6.7 is nastier than my 6.0 pullin truck. Haha


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[zippyrat]

I'm just trying to figure out what I'm gonna do when my daily driver 6.7 is nastier than my 6.0 pullin truck. Haha


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move the u joint shields and hitch over on the 6.7

 

[Dzchey21]

I'm just trying to figure out what I'm gonna do when my daily driver 6.7 is nastier than my 6.0 pullin truck. Haha


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I still plan on keeping mine the EFFF alone, but this makes me feel better about pulling whatever i want LOL

 

[H&S Bentley]

Hey back to the trans thing, i think this is the same thing we discussed bently about my truck in texas, i think if the truck senses some converter slip it kicks it out of lock up to try and save the trans/converter, i would bet this is the same thing that happened today.


Lock up switch might be the cure or finding the table that will just keep it locked not matter how bad the thing slips

Yes, it definitely is a protective feature of the 6.7L trans. I still have not looked a ton into the 6.4L, but I assume it is much the same. It will ramp pressure up also to protect itself from further slippage (if the gain values are still within a certain range). I still have a lot to learn about the theory of operation with the 5r110 and 6r140, but the amount of control is incredible. I see why a PCS is so hard to get to work correctly on one of these transmissions.

 

[Dzchey21]

yep totally agree, let me know if you find anything. I'm thinking a converter will fix mine.


What was the highest fuel only run? ... unlike most of you i had to actually work today!!! LOL

 

[zippyrat]

they did a first run than shot nos after that Iirc

 

[Bobby@cp]

yep totally agree, let me know if you find anything. I'm thinking a converter will fix mine.


What was the highest fuel only run? ... unlike most of you i had to actually work today!!! LOL

I love paid vacation days.... LOL

I think it was 600 something

 

[01PSD]

600ish IIRC, then 700 3 times in a row with nitrous, then 750 with nos, then 797 with nos, then 884 after Zane worked his ass off to conjure something together LOL

 

[Dzchey21]

Thats cool, fuel numbers seam to be harder on parts because it requires more fuel, air and back pressure to make it happen. I am however surprised it went that high on stock parts tho... and even more shocked the trans was the weak link in all of this

 

[STROKIN N STYLE]

Bentley did mention after the first 700 pull that BP was too high, so they made an adjustment for that. Today was an exciting day, I'm glad that we were slow at work. Me and a guy I work with watched the entire 2hr50min show lol

sent from the sea

 

[zippyrat]

they hooked up the wastegate.

gotta have a gate to shoot nos or that tight little 63mm turbine would have popped!!

 

[97stoker350]

nobody probably cares how good the fuel milage in a motor like this is but i am curious what it was if h&s ever looked at it.

 

[zippyrat]

If there is no wastegate and you spray turbo will overspeed.
Thats what is going to go, don't you ford guys know you can't spray a n-w/g charger!!!!

kinda called it

 

[zippyrat]

an overheated trans, torque converter failure would not be surprising either

and that one too

 

[bluedevilslax]

Thats cool, fuel numbers seam to be harder on parts because it requires more fuel, air and back pressure to make it happen. I am however surprised it went that high on stock parts tho... and even more shocked the trans was the weak link in all of this

Dustin I think the same thing as you, that fuel only numbers are the hardest on parts because you only have the factors that you can control in fuel amount/pressure, air and back pressure to make big number but with nitrous you can have a very over fueled truck but make great numbers because the nitrous is allowing so much more air in over the turbo capacity with the heavy fueling.

 

[Dmstrucks02]

kinda called it

and that one too

You should buy a lottery ticket :thumbup: