H&S and tow haul - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 13 Old 02-25-2013, 04:37 PM Thread Starter
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H&S and tow haul

How does the H&S work with the downshifting and trailer brake control programing when tow selector is being used on the shift lever. I really like the way the OEM control scheme works with my trailer now and would hate to see that compromised.
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post #2 of 13 Old 02-25-2013, 04:50 PM
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If you use the "easy" set of tunes, it uses the factory shifting. It DOES NOT support EGR delete though.

I use easy when I'm up in the mountains. Shifts so much better up there
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post #3 of 13 Old 02-25-2013, 05:17 PM
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It should do the same thing that it does factory wise

2010 CC/SB FX4 Lariat.. Tuned By Eric@IDP and Matt@Gearhead

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post #4 of 13 Old 02-25-2013, 05:34 PM
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if you use the standard tunes or hot tunes, the transmission absolutely does not do the same thing that it does factory wise.

export the files to MCC and take a look
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post #5 of 13 Old 02-26-2013, 06:08 AM
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Re: H&S and tow haul

I've towed on the hd300 tunes using tow/haul seems to do just fine.

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2008 F-250 KR
7" ICON
7" PMF blocks
Bilstein 5160F/5100R
22x14 Fuel Octane
37" Toyo M/T
H&S Mini Maxx w/ Gearhead tuning!
5" Diamond Eye
4" Diamond Eye DP
ARP head studs
Custom Stock Intake

RCD converter, HD billet input, low/rev hub, suncoast clutches.
160k miles and counting...
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post #6 of 13 Old 02-26-2013, 06:43 AM
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I tow on the hot damn tunes all the time, usually on mild or stock. I do not like the way it down shifts when the tow haul is on. When I'm slowing down to stop or just into a turn it will drop a couple gears and go from a nice coasting deceleration to turning very high rpm's and sounding like a big rig. Maybe that is what it is supposed to do, but I don't like it. I'd rather just use the brakes and trailer brakes to slow me down.

2008 F250 4x4
H&S Mini Max
Diamond Eye 4 in strait pipe
S & B Intake
HIDs 6,000K
more to come hopefully soon


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post #7 of 13 Old 02-26-2013, 07:59 AM
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Quote:
Originally Posted by drunk on diesel View Post
if you use the standard tunes or hot tunes, the transmission absolutely does not do the same thing that it does factory wise.

export the files to MCC and take a look
Can you elaborate to what it does differently?

2010 CC/SB FX4 Lariat.. Tuned By Eric@IDP and Matt@Gearhead

Thinking about getting rid of the stock 6.7 turbo?
Check this out... and research before buying



http://www.powerstroke.org/forum/6-7...ustration.html

http://www.powerstroke.org/forum/6-7...round-2-a.html
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post #8 of 13 Old 02-26-2013, 08:22 AM
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2010 F350 lariat cc sb srw
H&S Black Maxx,S&B CAI,,Readylift leveling kit,,GY 325/60/20,Smoked Recon: tail lights,cab lights,3rd brake light and tow mirror lights,AVS smoked window vents,20% window tints,Curt front mount hitch,Rear hitch mounted lights,Sinister coolant filter,PMF dual steering stabilizer,PMF traction bars 51 Gal. Titan tank,Bilstein 5100`s,Rudy`s up pipes,ARP studs,RCD egr delete w/ elbow,AFE cold side pipe,AFE 4"dp, AFE 5"
exhaust
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post #9 of 13 Old 02-26-2013, 09:00 AM
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Quote:
Originally Posted by WoodBoy View Post
Can you elaborate to what it does differently?
The shift points and lock up are not load dependent as the factory shifting, and they run the transmission in "hot" mode in order to get third gear lockup at WOT.

That hot mode overrides much of the tow haul stuff.

I've made my own tow specific tune in MCC. The canned tunes work fine, especially at lower elevations, but high altitude mountain driving didn't agree with the standard or hot tunes in my heavy truck
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post #10 of 13 Old 02-28-2013, 01:14 PM
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The new update is the same as the old mini maxx programs and they follow the tow/haul mode when it's engage. In certain gears the RPMs stay high until it needs to shift regardless of the trans tune you're running and also the exhaust brake work.

08 F250 KR
08 F250 XL
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