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towing tune question

2K views 13 replies 9 participants last post by  jennamax 
#1 ·
am looking to add just a bit more power when i tow, but i am cautious since i am towing a 13k toyhauler. should i stay away from a towing tune and run stock, or would i benefit from one of the tunes offered by DJ, Elite, etc?
 
#3 ·
I'm towing about the same amount of weight and I use Innovative Diesels "aggresive tow/haul with jake brake". The "jake brake" feature is actually using the variable turbo vanes to create back pressure and help slow you down on the steep grades. It works very well in conjunction with the tow/haul mode and tranny lock up.
Personally I like the extra power it gives and about the only down fall is on steep grades or heavy right foot situations you need to keep an eye on the egt's. It's not a big deal, but I am very cautious and like to keep them at or below 1000deg on the long grades.
Even towing that much weight and keeping an eye on the egt's i'm still able to keep a very respectable cruising speed and am passing most others climbing the same grade as well as a "little" better milage too. (all depends on how many hills and how fast I want to get to the sand)
The SCT will also firm up your tranny shifts helping prolong it's life running those 37's and especially while towing as well as several other user adjustable perameters and CEL code reading and clearing.
 
#7 ·
They all write tunes. They all probably have their own opinions on what the perfect setup is. For the most part, I think that's all it is afterwhile, is opinions. All of them seem to have very good customer service and are willing to tweek your tune to your satisfaction. If you don't like the tune you get from one, once you have the SCT you can call another dealer and buy just the tune from them and they will email it to you. The cost isn't all that bad and you can find one that's perfect for your needs.
 
#8 ·
all the tuners have good towing tunes, now the guys that say only this and only that, it works for them, but don't forget it is a tow tune, if one guys tow tune is stronger than someones elses, is it a tow tune now or is it a tow performance tune. what i'm trying to say is when it comes to towing and fuel economy tunes, everybodies works good,
 
#9 ·
FIREBALL said:
It's not a big deal, but I am very cautious and like to keep them at or below 1000deg on the long grades.
Pre or Post turbo?

LargeCar:usflag :mafia :usflag
 
#10 ·
pre......sender in the exhaust manifold.
 
#12 ·
FIREBALL said:
pre......sender in the exhaust manifold.
Is it just me or does that seem a bit low. I know that around 1250 to 1300 cylinder degrees things start to happen to the pistons, so I would think you'd be safe to at least 1150 on the manifold temp. My pyro is in the center of the collector going into the turbo (welded in bung) and I push mine to 1200 all the time with no problems. I have even seen it spike to over 1400 and I am still just fine. It takes a high temp for an extended period to do damage to the pistons, short spikes usually are non damaging. Might want to ask your tuner to see what he recommends as a top EGT, or did you already and I'm talking out of the top of my hat.:shrug:

LargeCar:usflag :mafia :usflag
 
#13 ·
The egt's i'm talking about don't have anything to do with my tune, it's just my personal prefrance to adjust my right foot in order to keep my temps at 1000 when on long climbs. I'm just trying to error on the side of safety and longevity for my motor.
 
#14 ·
Why does Dj say to not run a tune while towing????? I'd like to know since I plan on running a tow tune w/ my 5ver.
 
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