Quote from: derfdog15 on January 05, 2017, 11:38:44 AM
Quote from: Livernois Motorsports on January 05, 2017, 11:32:25 AM
Quote from: polskifacet on January 04, 2017, 07:28:39 PM
Quick update. Got new tunes from LMS. Problem seemed to be fixed but then the temp dropped to 13f. Same issue had to reflash to 91 octane tune. couple wot pulls seemed ok.
I suggest continued contact with the tuning department in regards to this. Unfortunately we get to a point where battling weather can become a hassle. We never know if we are going to have ten 13 degree days or one day of that. Chasing weather gremlins can lead us down the rabbit hole.
What about the benefits of cold weather tuning though(such as finding limits of the car). If my tuner told me we were going to abandon tuning/not worry about an issue due to weather (especially cold weather - worst case fueling scenarios on the GDI Ecoboosts) I would be pretty upset and look elsewhere. If you can get the car running optimally in the cold, with regards to fuel pressures, boost, etc then you KNOW it can run just as well or better in warmer conditions. ie. there is a little margin left in my fuel at WOT currently, and with 10 degree ambients, so I KNOW my car will run, without any issue in warmer spring/summer weather when it is going down the track.
I don't want to have to mess with running a different tune for winter, or a lower octane tune due to fuel quality issues, or weather. As you said, one day it may be 50 degrees, the next its 20 degrees when I leave for work and there is snow on the ground. I don't have time to load a different tune each day, or worry about doing so.
Derfdog15... depends on what you want right? If you want a tune that is pushing the limits of your cars fuel system to get the maximum amount power, then obviously when there are major temperature changes, that tune will greatly affect how the car performs...
Say you tune it to the ragged edge of your fuel system in the summer, ambient temps are 90F... you take the same tune and you are going to have fuel issues in the winter when it hits 19F...
When Brad tuned my car, I had a winter and summer tune just for that reason. The winter tune had a bit less boost to compensate for the colder more dense air which is harder on the fuel system...
Same thing with Unleashed, when I had Torrie tune my car in the winter, the tune was much milder. Come summer, I asked for a retune and he was able to tune it more aggressively due to the warmer air.
LMS has several different tunes for the SHO as well... and A LOT of guys detune their SHO's using various stages for winter months just for that reason.
If you want an all year around tune that's fine, its just not going to be that most aggressive tune out there. There are a lot of reasons for having multiple tunes for different climates...
In short, before calling out a tuner for a tune that might best perform in milder weather, perhaps there are reasons for that...