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B&G tuned PCM dyno results

10K views 25 replies 10 participants last post by  mjw930 
#1 ·
Got mine few days ago, did multiple before and after on the spot on a mustang dyno in these conditions:

Temp: 100
DA: 3089
Elevation: 16 ft
And very very humid in Dubai

Low end AFR was 10.8 (at low end) then goes to 11.1 or something close to that which is similar to stock PCM AFR (I can't really remember since it only shows on the print which I don't know where it is) but is richer than stock at low end, so it's safe since the tune is for CAI, Exhaust and a tsat, and I've only got a bwoody CAI.
Stock PCM has a rich AFR. It also ran cooler, no knock what so ever detected through the knock sensors.

Drivability? Well, I don't have to say any less or more than what KINGMONKEY and the others have said about it, it runs nice, it will run even better when I get my exhuast and maybe headers when they are available.
Did a 0-60 in 5.1 the same night, and after the 180 stat did a 4.8 today morning.
Will do a 1/4 tomorrow. Not quite happy with the 180 stat since it's struggling with our weather that the coolant temp is not even 185*, always higher, so I might go with a 170 instead but I'll have to ask if it will run alright with the tune.









Hope this clears many questions and doubts

All I can say is that I'm a happy man


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#2 ·
Nice consistent gains throughout the entire powerband. Great job. So is it fair to say you are extremely pleased with the B&G tuned ECU?
 
#10 ·
So if I am reading the miniature graphs correctly, it's <15 whp and <10wtq?
 
#14 ·
Installed mine over the weekend, probably haven't driven enough yet for the computer to adjust itself, but my "seat of the pants" dyno says it's a bit quicker. Made a U-turn this morning and hopped on it reasonably hard to get up to speed and got a lot of tire squeal, 1st time that's happened. I still get the eco light, though, when slowing down for a stop, but it's defiinitely not engaging mds at any point.
 
#15 ·
ECO light is just an indicator that your instantaneous MPG is higher than your average MPG. I really wish there was an indicator for MDS but on mine it's easy to tell I can hear the change in tone and feel it in the throttle response. I may do the ECM just to get rid of MDS.
 
#17 ·
93 tune. Happy so far, but I think my gas mileage is taking a hit. Going to have to watch it next time I fill up. One positive note is that the little clunking I was getting, mostly on downshifts, is now gone.
 
#26 ·
I think it's more of a global setting than a mode specific setting. BTW, I was playing around on the highway the other day and dropped it into manual mode, 5th gear cruising around 80 mph and it was smoother since it never went into MDS mode. I didn't check instant MPG to see if there was a difference.

I tried this because the MDS was pissing me off. At that speed all it takes is a slight incline or a little push on the pedal to switch back to 8 cylinder mode and the truck hesitates as it makes the switch. At slower speeds its not as much of an issue. I guess it's the price you pay to get a little better economy. FYI, I have the stock ECM, I do not have the B&G reprogrammed ECM.
 
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