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post #1 of 7 Old 07-25-2012, 01:35 AM Thread Starter
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Factory Transmission + HP?

Hi all - I am a former 7.3 owner but went to a Cummins in 08 because I needed a truck and couldn't wait for the new Ford 6.7 to be released. I am considering going back now and wanted some input on how the new 6speed auto is holding up with the deletes and tuner? I have enough experience with the Dodge transmissions to know what they are not capable of. How much power are guys pushing thru the new Ford auto? Is a trans tuner necessary? Should I plan on adding a high capacity pan or swapping out the valve body/converter? I haven't located any discussions here on this topic.

I have been reading the threads and it seems like shifting issues are the most common complaint with the new superduty - but none of these issues seem to be related to increased power. Granted it's only been on the market two years now but I assume that anyone running 550+hp should be getting some indication that a trans upgrade is in their future.

Thanks for any feedback.
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post #2 of 7 Old 07-25-2012, 02:54 AM
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I'm a 6.0 guy but I'm pretty sure I seen some real high numbers regarding the strength of the transmission.

2004 F350 PSD
8" Icon, Loud Pipe, 58v FICM, Deleted, MudGrapplers, Edge Insight, Sct tuned by Vivian.

2011 F350 PSD
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post #3 of 7 Old 07-25-2012, 03:59 AM
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The new trans is rated to hold like 1,300ft of torque. I think some companies have figure out how to tune the transmissions. Spartan has done a good job, but I sometimes get the occasional flare up, or weird shift. But it seems to be holding up just fine under the power levels. These new trucks have a weak turbo, and I guess the fueling system won't flow enough to go over 200 horse so tearing up the transmission shouldn't be a problem. Spartan tunes the transmissions when you load up the tunes. I would say you won't need to install a different converter, but the pan would be up to you. It all depends on what you are going to do with your truck.

2013 Platinum White, Dura Flaps, B&W turnover,
mpd s365 turbo kit, tuned by craig at mpd, no limit egr delete, amp steps, icon leveling kit, ouo traction bars, 20x10 bmf wheels, 35 toyo mt, bushwacker fender flares, painted to match headlights with projectors, absolute performance ccv kit.

Last edited by Anth; 07-25-2012 at 04:09 AM.
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post #4 of 7 Old 07-25-2012, 04:37 AM
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I think it's rated for 1400 lb/ft. 6R140. 140 means 1400.
THe 4R100 was 1000, the 5R110 was 1100.
So far what I've heard is about shifting issues fixed with a software update, but physically it's just as good as a 5R I think, just stronger.



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4R100, 2wd
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post #5 of 7 Old 07-25-2012, 09:33 AM
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No problems with mine.
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post #6 of 7 Old 07-26-2012, 02:44 AM Thread Starter
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So i guess Spartan comes with a trans tuner? I am running an H&S on my Cummins and they sell the trans tuner seperately. Thanks for the feedback.
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post #7 of 7 Old 07-26-2012, 04:43 AM
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It's not a separate item, when you load up the tune to your truck it also tunes the transmission.

2013 Platinum White, Dura Flaps, B&W turnover,
mpd s365 turbo kit, tuned by craig at mpd, no limit egr delete, amp steps, icon leveling kit, ouo traction bars, 20x10 bmf wheels, 35 toyo mt, bushwacker fender flares, painted to match headlights with projectors, absolute performance ccv kit.
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