Tow tune..

[Frankf250]

Hi all, question about towing my Montana 5er from ND to CA tomorrow. Should I be running stock? I have Vivian's tow tune but remember someone saying don't tow more than 10k with any tune. Any advise? Trailer is big with 4 slides. I think the weight is around 14k. Thanks guys



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[cRaZy8]

I tow up to 12k with Viv's Tow, and use her Tow Agressive under 10k.
Anything more than 12k, I use IDP's trans only tune.

[nordstrom]

It is safer and reccomended by Vivian to not tow over 8k on that tune that being said as long as you monitor your temps and egt's and dont hammer it you should be fine. The tranny only tune works well and you dont run the risk of breaking something.

[robertc68]

I have her tow tune( non aggressive) and have been fine ,5th weighs 13k.


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[colo_dually]

Pulling 14K over the Rockies, I'd put the truck back to stock vise running any performance based (additional fueling) towing file. A lot can go wrong on those grades, and without knowing your truck, I'd fail conservative.

If you've pulled with your truck on those grades, and have studs installed, you may choose to pull tuned. For me, I find running stock is better on the truck stock pulling at altitude.

[Frankf250]

Originally Posted by colo_dually

Pulling 14K over the Rockies, I'd put the truck back to stock vise running any performance based (additional fueling) towing file. A lot can go wrong on those grades, and without knowing your truck, I'd fail conservative.

If you've pulled with your truck on those grades, and have studs installed, you may choose to pull tuned. For me, I find running stock is better on the truck stock pulling at altitude.

Cool thanks guys. I'm not going to be doing any grades though. Going down through Utah. Made the trip many times just not with the 5er. I'll run it stock. Only mods I have so far is the 4" turbo back. And I just changed oil 2 days ago with T6.


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[frdbronco8]

I was a little depressed to find that the more weight you tow the less power you should use..... I thought a tuner would make up the difference between these trucks and the new ones for towing. Oh well, it still pulls alot better than my F150 did.

[Frankf250]

Better than my 07 silverado 1500 5.3. POS


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[colo_dually]

Originally Posted by frdbronco8

I was a little depressed to find that the more weight you tow the less power you should use..... I thought a tuner would make up the difference between these trucks and the new ones for towing. Oh well, it still pulls alot better than my F150 did.

Look at the engine specs for the new 6.7L Powerstrokes in the F450/550 Cab&Chassis. Its 300HP, and 660 FT-LBS (same 6.7L Diesel, different programming), reason for this is all the heat and cylinder pressures created when towing heavy. (The F550 is rated to 35K GCWR)

You can't expect a 6.0L Diesel, or the 6.4L or 6.7L to have all that power and no way to dissipate all the heat and gasses being produced under those loads like a 15L commercial semi. I made a few comparisons throughout the ORG on my reasoning to limit the towing HP on the 6.0L based on its displacement, airflow, and head bolt configuration. This trucks can be great hot-rods, but that is a whole different powerband than what is needed for pulling.

[Ron-M]

Originally Posted by colo_dually

Look at the engine specs for the new 6.7L Powerstrokes in the F450/550 Cab&Chassis. Its 300HP, and 660 FT-LBS (same 6.7L Diesel, different programming), reason for this is all the heat and cylinder pressures created when towing heavy. (The F550 is rated to 35K GCWR)

You can't expect a 6.0L Diesel, or the 6.4L or 6.7L to have all that power and no way to dissipate all the heat and gasses being produced under those loads like a 15L commercial semi. I made a few comparisons throughout the ORG on my reasoning to limit the towing HP on the 6.0L based on its displacement, airflow, and head bolt configuration. This trucks can be great hot-rods, but that is a whole different powerband than what is needed for pulling.

Great way of looking at it and explaining it.

What are your thoughts on water/meth for towing?