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I did some looking, the trailer module install does change TCM behavior in some way, nothing I am aware of for changes to the ECM.
 

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I'll admit up front that I don't know squat about tuning Volvos, but I have quite a bit of experience tuning Diesel pickups, and it's always a compromise between raw performance, good towing characteristics, and longevity. I would be very cautious doing any serious towing with a tune aimed at raw performance. I would also endeavor to learn all I could about how the trailer module effects things, and if your tune overrides any of those parameters. Your transmission behavior has to match the performance characteristics of the engine. You don't want the transmission shifting based on certain torque levels and the engine doing something completely different.

Maybe whoever did the tuning could answer some of your questions.
 

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Discussion Starter · #5 ·
Sorry to hijack the thread a bit, but what tune do you have? What motor?
Currently untuned 2.5t, don't want to move forward with anything that would counteract the towing module but would like a little extra power to round out the vehicle and maybe handle some of the uphills better while towing.


I'll admit up front that I don't know squat about tuning Volvos, but I have quite a bit of experience tuning Diesel pickups, and it's always a compromise between raw performance, good towing characteristics, and longevity. I would be very cautious doing any serious towing with a tune aimed at raw performance. I would also endeavor to learn all I could about how the trailer module effects things, and if your tune overrides any of those parameters. Your transmission behavior has to match the performance characteristics of the engine. You don't want the transmission shifting based on certain torque levels and the engine doing something completely different.

Maybe whoever did the tuning could answer some of your questions.
100% agree. I'm not looking for anything outrageous, just to open a little more performance from the engine and maybe move the torque band a hair. I had a well known tuner many of us have used brick my P1 S40 after rewriting a tune to accommodate a dealer software update so I'm a bit apprehensive about tunes but appreciate the result.
 

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Discussion Starter · #6 ·
I did some looking, the trailer module install does change TCM behavior in some way, nothing I am aware of for changes to the ECM.
That's the thing, it's a bit of an unknown. I figure I'll see if anyone has any practical experience before becoming a guinea pig.
 

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Ive thought about tuning our 2.5t, but wonder who to go with, so let me know id you end up doing it.
I won't likely be doing anything with a tune until Spring, but will definitely update if/when I do <img src="http://www.vwvortex.com/Anthony/Smilies/thumbup.gif" border="0" alt="" title="thumbup" class="inlineimg" />
Please do. I have to do some stage zero stuff, but a bit more power would be nice.
 
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