HPTuners Updates for 2013-2017 Taurus SHO

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Kevin81

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My prediction? Folks are gonna break their drive trains.


But...if we pioneer a way to safely and affectively send 70% or so of torque to the rear wheels on a permanent basis...

I'm OK with people breaking their stuff!
 

stripSHO

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My prediction? Folks are gonna break their drive trains.


But...if we pioneer a way to safely and affectively send 70% or so of torque to the rear wheels on a permanent basis...

I'm OK with people breaking their stuff!
I don’t have my computer in front of me but to command is like 60% or 65% from the factory. Of course there are a few likely ways a tuner could inadvertently screw that up without ever touching AWD settings though.
 

Kevin81

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I don’t have my computer in front of me but to command is like 60% or 65% from the factory. Of course there are a few likely ways a tuner could inadvertently screw that up without ever touching AWD settings though.
Yeah, but that's only after the front loses traction.

I'm talking, full time, rwd biased AWD. I wager these cars would be an absolute blast to drive with a fulltime 70/30 split. Enough to put the power down from a dig, and still behave like a rwd car for the rest of your driving exp.
 

Ecoboost_xsport

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Yeah, but that's only after the front loses traction.

I'm talking, full time, rwd biased AWD. I wager these cars would be an absolute blast to drive with a fulltime 70/30 split. Enough to put the power down from a dig, and still behave like a rwd car for the rest of your driving exp.
Not sure what the limits of the clutch pack in the RDU is, but it's likely not high enough for that 70/30 split as it currently sits. But, we'll never know until someone tests the limits of these components. And maybe there's a viable option to beef up the rear that we haven't discovered yet...
 

Angrymongoose

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Even a 50/50 full time split wouldnt be bad. Especially if it wasnt a reactive split as it currently sits.
I know in skyshadows thread about the hybrid setup he mentioned he figured out he rear end was a dana 28 I believe. Simply knowing that should open up at least some potential for beefing it up. I havent looked into that much, so maybe Im way off but it seems like a start.
 

Ecoboost_xsport

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Even a 50/50 full time split wouldnt be bad. Especially if it wasnt a reactive split as it currently sits.
I know in skyshadows thread about the hybrid setup he mentioned he figured out he rear end was a dana 28 I believe. Simply knowing that should open up at least some potential for beefing it up. I havent looked into that much, so maybe Im way off but it seems like a start.

Idk that it would be the gears, more likely the clutch pack that is unable to handle it....that being said, it could be an interesting investigation. Would be nice if @skyshadow07 could take apart the one he has off his Hybrid mockup and just see what's in it....might be some room in there for a few more plates...idk, just spitballing here
 

Kevin81

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Even a 50/50 full time split wouldnt be bad. Especially if it wasnt a reactive split as it currently sits.
I know in skyshadows thread about the hybrid setup he mentioned he figured out he rear end was a dana 28 I believe. Simply knowing that should open up at least some potential for beefing it up. I havent looked into that much, so maybe Im way off but it seems like a start.
If its a 28, wouldn't a Dana 35 swap be possible?
 

skyshadow07

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@Angrymongoose The rear differential is a dana 28 IRS. It shares the 28 name with two other axles that are totally different..ial (pun intended). The standard Dana 28 is a solid axle with a 7.5 inch ring, the dana 28 IFS is a reverse cut front axle for a ranger also with a 7.5 inch ring. Our Dana 28 IRS is a 6.625 inch ring and of course is not solid (IRS meaning independent rear suspension). If you wanted to eliminate the clutch pack, a Ford 8 inch IRS axle from 2000's mustangs would probably be ok.
@Ecoboost_xsport I can take it apart if you guys want. It has a huge lock ring that I'll need to get off. I already had to buy a 2" deep socket on 3/4" drive to get the pinion out. Never did I think I would need a socket that big.
 

Angrymongoose

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I obviously haven't done near as much research as you here.
However, what I could find looked like the rangers IFS dana 28 was also a 6.625.
I wouldn't say that makes that one anymore useful, but it does appear to be the same size.
 

Ecoboost_xsport

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Just ditching the clutch pack sounds interesting on the surface, but wondering how that would "play nice" with the system as a whole? I mean, throwing an LSD in an 8" Mustang IRS setup and getting a longer driveshaft isn't outside the realm of possibility, just curious how that would end up working. I don't know enough about that to speak intelligently on it. Simply throw a code that could be tuned out and all is good? Or wreak total havoc on the drivetrain and seriously break the PTU (this, I imagine would REALLY put that PTU to work) and/or other drivetrain components...not sure. Don't want to hijack this thread, but would love a discussion on that path as an option...
 

FiveLeeter918

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Sorry Lee. I wasn't trying to knock you in any way. Apparently that's how it came through so I apologize. I just find it weird that my 2016 has had all of these new parameters since the day I got my MPVI.

You know, for the longest time I've been under the impression due to the design that the right front axle and the PTU were mechanically locked as a cheap-ass afterthought attachment and that's where all my ranting about the open front diff comes from. Nobody's bothered correcting my ignorance. But today I think I'm finally realizing that the PTU is splined to the carrier itself and not dependent on the differential as I've been ignorantly believing.

If this is true then 1) I'm a idiot and 2) I'm kicking myself for having to played with these settings sooner! Although...

The resolution is jacked up, but I do have AWD duty cycle in all my logs. I don't know if it's supposed to be % or what, but multiplying the logged values by 10,000 puts the RDU command at 4.6% when stopped, peaking at 92.6% around 16 mph, then slowly tapering off from there:

View attachment 17189


There's a few other parameters I'll be adding to my logs too:
View attachment 17190


It will be interesting to send those AWD torque requests to the moon and see if this duty cycle signal goes up or not. I've got a very simple two-step I'm working the bugs out of and am currently able to leave on any amount of boost I want. Trouble has been getting the timing to ramp back in quick enough for it to matter. And without the supporting traction I decided to just let it go by the wayside and abandoned it.

All good, sometimes I get tied up in emotional responses as I read them haha, joys of internet conversations.

I'll have to add these as well and start monitoring them. We made some changes this weekend that I played with that definitely seemed to launch and pull harder, but I will have to go back to the previous tune to get comparative data. Might do that later today.
 

skyshadow07

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Feel free to move this over to my hybrid thread haa.
@Angrymongoose, If the dana28 IFS is 6.625" I would look further into it but I have seen pictures of the pinion and the design is vastly different to ours.
 

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