If SMM doesn't take you up on your offer for a run I will. I got the prototype GoPro charged.
Of course I am taking him up on his offer!
If SMM doesn't take you up on your offer for a run I will. I got the prototype GoPro charged.
I set the tunes for 26.5 peak and allow the knock sensors to add up to 3 degrees at high RPM. That would be 29.5 *IF* the knock sensors are allowing it.
Where are all the arm chair tuners that said 28* was too much?? With good fuel and no knocking 28* is completely safe and now you have proof from the almighty. :coolman:
Ok I'm a noob at understanding tunes but can someone break down KS and timing for me and what makes a tune safe? Just a tune in general. I didn't want to make a thread but it might be good for people like to so they can understand better.
Thanks.
Adding timing is okay. Many Bama tunes have found to be commanding 28° or more before KS take effect, and then the KS pull additional timing to bring total timing to 30° or so.
Funny how it goes from 28* is "too high" and "find a new tuner", to some story about a knock sensor pulling timing which somehow results in 30* "or so."
Let me guess what's happening here. You read something on a forum about a Bama tune log with a negative knock value and timing in the high 20's? Maybe 28-29? And then went on to assume that the negative knock PID meant the car was pulling timing? A negative knock value means the tune is ADDING timing, not pulling timing...
Funny how it goes from 28* is "too high" and "find a new tuner", to some story about a knock sensor pulling timing which somehow results in 30* "or so."
Let me guess what's happening here. You read something on a forum about a Bama tune log with a negative knock value and timing in the high 20's? Maybe 28-29? And then went on to assume that the negative knock PID meant the car was pulling timing? A negative knock value means the tune is ADDING timing, not pulling timing...
actually I posted my datalog that showed 29.5 degrees of timing and a 1.04 afr and no ks activity. this was after a revision so god only knows what it was before.
shaun allows the ks to add it up to 29.5 not commanding that.as for the afr I misread that I thought I highlighted measured afr for the sample pic not stft. honest mistake...also just noticed the ks were adding .50 degrees as well. either way two tuners said it didnt look good and im happy with what I have now. pulls way harder and driveability is much better.From this thread? http://www.svtperformance.com/forums/showthread.php?1010966-Bama-Tuning
Your AFR is not 1.04, thats your STFT which should be as close to 1 as possible. AED allows up to 29.5* of timing so I'm not sure where the concern is with Bama doing the same.
shaun allows the ks to add it up to 29.5 not commanding that.as for the afr I misread that I thought I highlighted measured afr for the sample pic not stft. honest mistake
Cowboy after looking at your sig I was curious about something. What mods were used in your best bama tune pass?
Based off if you had the OR pipe or not knocking almost 5 tenths off your quarter mile with a bama tune isn't bad at all considering the price and free revisions. Heck the tunes are practically free if you buy them bundled with a mod. Shawn is well known for being a good tuner but being realistic how much more would he get? Couple more tenths for 250$? Worth to me but maybe people aren't that hardcore. Plus he charges for revisions and I mod slow. It would be the icing on the cake at the end.
If the bama tune is still your personal best how is your new performance tune "pulling harder"? Feels like its pulling harder? You can adjust the pedal to feel like you just roped a great white if you want. Doesn't mean its actually putting down.
I am not even going to get into it....but BEERNUTS my friend don't spread misinformation...
yes that best time was with the o/r pipe. my current best with mikes tune was in far worse conditions d.a wise (1800-1900) and very poor track prep (12.7 fully loaded full tank of fuel). now I know it pulls harder because below 3500rpm on my bama tune it was lethargic worse than stock to be honest. above that range it was fine but after 5k it pulled hard. plus the transmission shift times and firmness was all out of whack. they told me that it was as good as it gets. the 250 I spent for mikes tune wasnt a requirement for me as much due to power but reliability and driveability. as soon as the track and air is similar ill run again. but with mikes tune it has way more grunt down low. Also ill strap it on a dyno to compare when I have the $$ to do so
Yea I was curious about your times because when you had your other tune our cars seemed similar. I am in the midwest with a little more D.A. I had cai/tune/ 28" radials and would go 12.50's at around 112. Stock it ran 13 somethings around 107mph. Was always curious how much e.t. was shaved by radials, and how much from tune.
I realize that. The snapshot you posted tells us absolutely nothing about what the Bama tune was doing. Post a CSV file with the proper PID's logged at WOT and we can go from there. Otherwise, all you are doing is spreading misinformation.