I would def give the ECU time to adjust to the new tune and keep reviewing/providing feedback. This was the case with my dozens of tunes and revisions on my track car.
You rock for beta testing this as well. Owe you some karma, dude!
would be curious if you could log some data and then send them the results so they can further refine the tune?
Most tune revisions don't require a dyno. Just that you follow certain tuner-instructions, such as 5 mins of round-town driving, followed by 3 consecutive runs from 15mph to 75mph in 3rd gear (as an example from the particular sports car I used to have tuned) in a certain logging mode.
That would give enough data to revise around.
That said, 99% sure Vivid wouldn't be interested or they'd mention in their pages about revisions. Someone else might be willing, but they'd have to be privy to Vivid's tune files.
Durability is my main concern
Allrighty...Road trip completed, worse MPG across the board however, this was a poor test. It was very windy both legs of the trip and I hit traffic on 35 and in Fort Worth on the way, totally different ride than last time so I can't compare them after all. Around town I feel like its doing a tad better, have had a few trips up in the 16s, several in the 15s, when typically I should have seen 13s-14s...this is purely unscientific data. I have been driving the same as before trying to let mpg be the true testament of gains, since I am not dynoing or doing any 0-60 testing.
You will risk durability anytime you tune and your engine warranty.
What was your mpg's before the flash? I cant break 14.5 even on highway trips. I know your rig is way heavier than mine.
Before I was hanging out in the 12-13 range...I do feel like I have gained some MPGs...Today I saw 15.5 over about 17 miles, hwy with a few spots of traffic and some stop lights. I will take that, especially considering the weight I haul around. My truck has the fridge and both drawers loaded for camping, and 5gal of H20 on the back...Maybe I can crack 17 if I empty things out.
One thing I did recently made a huge difference in mpg...make sure your alignment and wheel balance is spot on. I also aired my stt pros up to 40...rides harsher but all those things together got me up from the 11-12s to 12-13s. Every little bit helps! I do also have gears so unless you do too, its hard to compare.
just want to thank you for being a guinea pig for all of us.. been following you since the whole URD MAF calibrator thing and it looks like its removed?
Any new updates with the tune?