Hesitation in boost and high rpm
- Thread starter polskifacet
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polskifacet
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I did around the beginning of the year and then they released v10. I may contact them but want to give them as much info as possible as it seems they have widdled it down but there are still a handful of people who have some funkyness.
Livernois Motorsports
New member
I am very sorry to hear of this. Please shoot us an email or give us a call so we can look into this further for you and anyone else that is having trouble with their tunes as well for that matter. If the LOR has dropped noticeably and the kr has increased, I would definitely try getting fuel from another station and possibly try throwing in a few gallons of higher octane fuel as another member on here mentioned if available, to see if the issues have been alleviated. I also wanted to mention that it's worth trying a different fuel station for guys that have suddenly developed an issue that was not there when the initially loaded their tune. We've had experiences with sub par fuel even from the top tier or best stations in town, this time of year especially. I can honestly tell you that the no name station on the busiest corner of town always has the best gas in our area. They have lower prices than most and are in a great location, so it's that station that always has a line to get to the pumps during rush hour everyday. We have been using this station to get 93 pump gas for cars on the dyno here and have never had issues with a single fill.
What some people don't take into account is that those top tier / big name stations typically cost more and therefore do not have as many people filling up with premium there. So their gas may be sitting in the ground longer than the brand X station down the street that has fresh fuel coming in twice as often due to volume. So if you have always been using the same station and notice your vehicle's performance suddenly taking a change for the worse, by process of elimination that would be the 1st thing to try if you haven't already.
Don't get me wrong, I"m not blaming the fuel or the station for the issues that the vehicle has started experiencing , just wanted to share the experience that I have seen over the years with different fuel stations and winter weather as well. Also keep in mind that in years passed we had released cold weather specific tunes when needed, but the version 10 tunes did not have cold weather issues reported last winter after it's release in the fall of 2015. We can however make adjustments to the tuning if needed to offset what ever issues the cold weather has brought to the table. We just need to know about the issues or we cannot do anything to help.
What some people don't take into account is that those top tier / big name stations typically cost more and therefore do not have as many people filling up with premium there. So their gas may be sitting in the ground longer than the brand X station down the street that has fresh fuel coming in twice as often due to volume. So if you have always been using the same station and notice your vehicle's performance suddenly taking a change for the worse, by process of elimination that would be the 1st thing to try if you haven't already.
Don't get me wrong, I"m not blaming the fuel or the station for the issues that the vehicle has started experiencing , just wanted to share the experience that I have seen over the years with different fuel stations and winter weather as well. Also keep in mind that in years passed we had released cold weather specific tunes when needed, but the version 10 tunes did not have cold weather issues reported last winter after it's release in the fall of 2015. We can however make adjustments to the tuning if needed to offset what ever issues the cold weather has brought to the table. We just need to know about the issues or we cannot do anything to help.
polskifacet
New member
AJP turbo said:
I do believe that in Chicago a lot more sh*t gets through just because of sheer volume, the station I use is the best I can get, it was recently built so it has new tanks, I have tried others and get worse LOR and the same result. I also believe that the tune can be massaged to account for this. I don't know what to do, without pro logging, I don't like throwing "my sh*t don't work, fix it" at LMS. Would be neat if there was a obd logger they could send out with an sdcard and have actual data to look at.
polskifacet said:
You mean like an SCT X4?
Only somewhat joking here...
If you need the ability to log, I would suggest finding a used SCT X4 (as it is much simpler to log with than an X3) and keeping that with you. As long as it is unlocked, and possibly even if locked, it will be able to datalog the car. The X4 also has the gauges on the datalog screen which is nice. Once the logs are saved you can look over them on your own laptop as well as send them to LME (not sure if they use them or not, as I have not had them tune, and I know they use their own proprietary tuner).
You can always use the SCT to get custom tunes/change canned tune parameters (tire size, gear ratio, etc.) on another ford in the stable as well.
Livernois Motorsports
New member
AJP turbo said:
Not saying the fuel stations are lying or selling garbage fuel occasionally on purpose , no. But some stations have water / condensation in their fuel occasionally which can cause a lot of trouble even in bone stock vehicles. This is why I keep a bottle of Heet water remover / fuel line antifreeze in my Car, truck , and snowmobiles all winter long. They wouldn't sell the stuff if fuel stations never had moisture of some sort water in their fuel on occasions. Not sure if you have ever had a fuel line freeze or water in your fuel, but it happens here in Michigan, especially in rural parts up north when traveling or snowmobiling more often than some would think. Most all avid winter motorsports / powersports enthusiasts would agree, keeping water remover / gas line antifreeze or something equivalent handy is pretty much standard. So using a busy station usually means their fuel has had less time to sit in the ground and collect moisture.
I all fairness LME was kind enough to chime in and offer there support to the OP and he should contact them for a viable solution and we should all respect that,until then we need to move on and dont want to see this topic steer off course,the same rule applies to any such tuning co/vendor on this forum. Z
Not to mention sometimes drivers mix up the grades when filling the underground tanks.Livernois Motorsports said:
I've also heard tales of unscrupulous owners paying off drivers to do so.
If this is normal, I would email the company, not the station, and let them know what is going on.
You can run 2 bottles of HEET and since it's straight meth its also an octane booster. If it isn't fuel quality related
it could actually add to your woe as meth has a very low stoich point (6ish) and will add to a fuel demand issue.
polskifacet
New member
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.
polskifacet
New member
I don't mind the issue so much as making sure my sh*t doesn't blow up again. LMS doesn't sound too concerned in the emails, they haven't said that the hesitation is a concern for damage. Also seems like they know the root cause but it requires a lot of massaging to make my car happy.
polskifacet said:
Hmmm historically when these cars hesitate under wot it's due to a fuel pressure issue. Once the trims max out during a WOT run, the throttle closes down and/or the ECU opens up the waste gates all the way so all the boost gets jettisoned.
You could just rely on the built in safe guards to keep everything from going kaboom...
I would log it to see what is going on. Not sure if you can log with the mycal and send it to LMS for a diag?
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Livernois Motorsports
New member
polskifacet said:
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.
Livernois Motorsports said:
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 said:
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...
Livernois Motorsports
New member
derfdog15 said:
It all depends on what you are looking for in a tune. Like you say, the weather can vary quite a bit from day to day, especially in the upper midwest.
A large quantity of our customers run a lower octane tune in the winter to compensate for winter blends and driving conditions. Running a "summer tune" on 93 octane at WOT in 20 degree weather and 3 inches of snow seems like a very rare circumstance. We strive to work with the customer to fit all needs but very rarely will there be an instance where ONE tune fits EVERYONE'S needs. Unfortunately it sounds like we are unable to accommodate your tuning needs, we apologize about that. As for our customers on this thread we will continue to offer the utmost level of support available for all your tuning needs and we hope to solve this issue for you in a timely fashion.