Great News! Looking forward to it. I use SCT a lot, but prefer HP Tuners.
True you raise a good point, I forgot you could adjust spark per cylinder. It's tough to put a number on how much timing to pull maybe 2-3 degrees then. Also, if you skew cyl #8 3% then the others would only be off 1% a piece which is less the .2 a/f ratio...maybe a combination of the two would work. I'll have to get one on the dyno and see how it translates into real world numbers. Makes me want 8 O2's and 8 egt's lol
This raises a question. While scanning my buddy's 13 5.0, I noticed stft correction at wot. Is this correction based on commanded a/f ratio vs actual calculated by the factory wideband? I wasn't scanning commanded lamda at the time, not sure if I could either, it was a while back. Im sure you already know, the only time you would see this from an LS is if the pcm hasn't entered PE.
That's what I was thinking. Thanks for confirming. Talk about easy to dial in the fuel curve.
Btw, when the time comes, if you need a few files I know 4 people with 5.0's.
Thanks, that will be helpful.
Once I get a little closer to releasing, I will start posting HOWTO information on tuning these vehicles as it is a bit different than before. That way you guys aren't in the dark when the software is released.
We should be able to read other cars with tunes from the current 5.0 tuners to figure out what they're doing to prevent cylinder 8 issues, right?
Depends on; if they have it locked or not
Yes. My personal opinion is the Cyl 8 issues were caused by bad / over aggressive tuning.
To my knowledge there is no Ford tuning software that does PCM locking like there is in the GM world. It could be done, but no one is currently doing it that I am aware of.
I never use others tuning, mostly because 9 out of 10 tunes are hack and the other are application specific. I never once have seen a proper MAF cal from a mail order. If the tune was good in the first place the car would not be in front of me for a tune.
I'm so excited for this! Thank you for all your hard work!
I will be ready to upload my stock read whenver I am able to.
Thanks again!
Total Masshole.
2013 F150 FX4 Supercrew Ecoboost - STOCK
2013 Mustang GT Premium - Lots of Mods, 424 RWHP SOLD
2009 Cobalt SS/TC Black Sedan
227whp/224wtq Stock. Dejon CP, K&N SRI, Forge BPV, Catless, BadMab Catless DP, MPx 3" Catback, HPT Tuned 328whp/425wtq. SOLD
2004 GTO Pulse Red 1 of 512 - R.I.P. 5/31/09
I might have to buy a Mustang...
2012 Chevy Cruze A6 1LT RS
Formerly - 2004 GTO, 2002 Z28, 2007 Colorado, 2008 Silverado
Good to know. I use HP on my 1000+rwhp vette and have a SCT tuner for my 2012 mustang but would love to tune it myself. I wonder if HPtuners will read the tune in it now which was a SCT tune and let me modify that because the tuner put tons of time into it to get it shifting perfect and I would hate to start with a stock tune.
There is a timer that reverts back to Stoich after so many seconds at WOT from the factory. The fix in the SCT software was to raise that timer. Aggressive timing curves and de-sensitizing knock sensors also played a role in the #8 issue too. These cars are very nice to tune once you know how they work. Im hoping HP Tuners will have access to more tables than SCT did. Part of the problem is you can't see a lot of the tables we may need. A lot of Roush tunes have items changed that we could not see.