afre you going to offer dsmlink support i have dsmlink csv files but it doesnt read properly on the program..

 

Actually, it's not a real AIT as it's measured at the MAF. It would be skewed slightly though. Even so, just thinking out loud, it could be a quick way to get close to SAE correction without the need to look up specific weather data, depending on how the temp data was pulled.

I generally use Weather Underground to look up conditions, but saving a step is always good.

Bbarnhill, you can log the data for temp and baro as seen by the MAF. Baro shouldn't change much during a pull, but temp definitely will. The highest temps will be at the beginning and you get a smooth curve downward toward redline. Pulling a sample of temp data after the 50% mark of the pull could be usable. I don't know ... just a thought.

If the logged data is somewhat usable, maybe the default could be to pull from the log if the data exists, but the user could always overwrite the values if preferred.

 

Why thanks!!!! Glad to know there are people that can recognize a good freebie when they see it. Some other software out there isnt so good, and Im not going to name names so I can stay out of the unprofessional scene of software bashing.

We were the first out there and the best. I plan to stay in that spot, if it costs me sleeping for the next week to get this update out.

 

I know that it is in the MAF and not real AIT, I just said it like that for simplicity sake.

Regardless, I frown upon using weather correction and never use it.

 

Weather correction is good if you are comparing the same car in different conditions or altitudes.

Of course if you just want to know how much tq/hp that car is making right then and there, then you don't want to use any type of correction.

But, for the weekend tuner who can only tune here and there and needs to see comparisons from week to week or day to night, then weather corrections are a useful tool. The uncorrected numbers will be all over the place depending on baro and ambient temp and you would never know if a change had made an improvement or not.

 

Well said, but I still dont use/like weather correction.

 

to each his own. I like SAE correction ... keeps things balanced across conditions (at least as well as can be expected).

I use it because I have people who want comparisons, and if they were tuned initially in January and a year and a half later then add cams and are tuned in July, the correction makes it a better comparison. With out it, they might actually see lower numbers in the summer heat when the car is in fact making more power with the cams.

 

Im not really a fan of sae correction either but i do understand that everyone has their on preferences. Thats why I try to take everyones suggestions into account.

 

nice

 

True. But like you said to each his own.

 

Ive got the profiles part of the next update about 75% done. Hopefully Ill get to work on it more today. I plan on getting it tested asap and out to you guys. 1.0.5 is starting to look good.

 

FWIW, I did some logs over the weekend to see how the temp and baro values compared to actual. Here is what I found ...

Baro is consistent and really close to actual BEFORE you start a pull. As boost rises, baro drops below actual. I assume this is from the vacuum being generated in the MAF once the turbo picks up flow.

Temp is high before a pull and drops to around ambient toward the end of a pull. I believe ambient during my pull was 78º and I logged 77º for the better part of the second half of the pulls.

 

What is temp like at the start of the run (how much is it off actual)?

What is baro like at the beginning and end (how much is it off actual?

 

I did 3 pulls ... 2 in 3rd and one in 4th (partial) ... I'll look them over and give you some real data this afternoon so I'm not just guessing.

 

Ok good deal. May be able to auto figure the values form the runs but maybe not ... should be interesting to get data from ya to prove either way. Its nice to have people willing to provide data. Im all about adding anything I can to it. I may have the ability in the future to log live straight from the OP2 cable if I can figure that out. If anyone knows the communication information, Id be curious how to setup a port to communicate with the thing. Id LOVE to get a test bench setup at home too but that may be just dreaming. Here is one for providing data.

I may also in a future release adjust the TPS trimming to figure the first WOT section to be the run so if the person shifts gears the run ends, may make this an option. It causes weird loopbacks because it expects one gear throughout the run, and there is no way to detect the gear unless maybe if MPH is recorded.

Not going to get into that right now. I am going to also with v5 support every Evo that I could find information on. Hopefully going to put that information in the XML file tonight or tomorrow. Exciting things coming in V5. We will see if everyone likes it. I still have to let it go to beta after the profiles are done so its a few days out yet. Just be patient as it will be worth the wait, I suspect.