Duramax Diesels Forum Truck of the Week
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Old 09-23-2017, 06:08 AM
77cruiser 77cruiser is offline
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Default Safe tune , towing 10,000 lbs.

What's a safe tune for towing a 10,000 lb. trailer through the mountains?
I have a PPE tuner, & I have it on 120 hp now but was going to go with 90 or 50.
Have NO pyrometer BTW, if I did I'd leave it as is.
2004 LB7
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Old 09-23-2017, 06:13 AM
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TheBac TheBac is offline
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stock trans, stock tune. maybe the 50. nothing more
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Old 09-23-2017, 07:36 AM
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IOWA LLY IOWA LLY is offline
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This^^^^^^ 50 at the most of you truly want to be safe.


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Old 09-23-2017, 08:54 AM
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ChrisPerry ChrisPerry is offline
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Install a pyro. With any tune you can get high egt's if it starts to lug down, even a 50hp tune.
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Old 09-23-2017, 10:32 AM
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Is this a once and a while tow or everyday? If its later get a Pyro other wise just lock out the OD. Your trans is more an issue then egts.

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Old 09-23-2017, 10:59 AM
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Run it all day long towing 90hp over but like Dozerboy said lock out 5th.
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Old 09-23-2017, 01:40 PM
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I'll send ya a tow tune hehehehe
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Old 09-23-2017, 10:48 PM
2008lmmchopper 2008lmmchopper is offline
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Ya I'd set it at 50 buddy. I tow on a 60 hp tow/eco tune and ive never had an issue.

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Old 09-24-2017, 12:32 AM
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But your 6sp trans is stronger then his 5sp so what you do doesn't apply to him.

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  #10  
Old 09-24-2017, 04:44 AM
77cruiser 77cruiser is offline
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I'm going to install a pyrometer & I had intended to lock out 5th when pulling the grades.
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Old 10-15-2017, 09:47 AM
77cruiser 77cruiser is offline
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Well I put it on 90hp, usually drop it to 4th on a good grade. Haven't seen any temps higher than 11-1150 till I got up to around 6000ft & I saw a few times 1200.
Had to have some work done a G&J Diesel in Billings. The shop guy said he's seen some higher temps with stock tunes.
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Old 10-15-2017, 10:07 AM
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I'd keep it at 60ish or below and tow sensibly and you should be good. When I was on a stock trans that's what I did with 6th locked out and a turbo brake.
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Old 10-15-2017, 04:45 PM
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Till your on a hill and here comes a 20 year old Cummins , fenders flappin , bed sides ready to fall off , he is towing the same weight , can you keep from up shifting ? LOL!
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