Why buy a CAI & tune if the computer adjusts 2 your driving?
10-23-2006, 03:05 PM
#2
2nd Gear Member
Join Date: Jan 2006
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Posts: 235
RE: Why buy a CAI & tune if the computer adjusts 2 your driving?
1. The tuner could turn off adaptive learning (if i remember correctly)
2. take a minute and reload the program if you feel the tune has lost its edge. (normal process)
2. take a minute and reload the program if you feel the tune has lost its edge. (normal process)
10-23-2006, 03:41 PM
#4
4th Gear Member
Thread Starter
Join Date: Aug 2006
Location: NYC
Posts: 1,516
RE: Why buy a CAI & tune if the computer adjusts 2 your driving?
I just got off the phone with Brent at Brenspeed and he said the computer re-learning everything blah blah blah is a myth. If you have a good tuner...everything should be OK 
10-23-2006, 03:47 PM
#5
3rd Gear Member
Join Date: Dec 2005
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Posts: 609
RE: Why buy a CAI & tune if the computer adjusts 2 your driving?
ORIGINAL: mAnYsTyLeS
I just got off the phone with Brent at Brenspeed and he said the computer re-learning everything blah blah blah is a myth. If you have a good tuner...everything should be OK
I just got off the phone with Brent at Brenspeed and he said the computer re-learning everything blah blah blah is a myth. If you have a good tuner...everything should be OK
wow someone trying to sell you something told you something you wanted to hear to move his product?! thats unheard of! lol
my car dealer toldme i was a buff young man and that i needed to buy this car... so i did lol
all jokes aside i bought my cai and tuner from brent so i know he is a good guy but i have read in reviews and previews that these mustangs do have some sort of adaptive learning on them
10-23-2006, 04:03 PM
#6
5th Gear Member
Join Date: Mar 2006
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Posts: 2,544
RE: Why buy a CAI & tune if the computer adjusts 2 your driving?
The ECU has many functions:
ignition timing
fuel injection mapping
drive-by-wire functions
accessory operation (lights, fans, etc.)
The "adaptive learning" ONLY affects the drive-by-wire function. The O2-sensor based A/F correction is very limited in how far it can deviate from the fuel injection map.
So, the computer can only make relatively minor adjustments "by itself".
If you want to change the ingition timing or the accessory controls, the ONLY way to do that is with a new tune file. Also, because the ECU can only make minor changes to the fuel mapping by itself (and those changes aren't neccisarily "correct" anyway), you still need a tune to make significant changes there as well.
Keep in mind that the ultimate programmed GOAL of the ECU isn't "performance" from the factory. It's a combination of performance, mileage, emissions, and whatnot. An aftermarket tune file is optimized for performance.
ignition timing
fuel injection mapping
drive-by-wire functions
accessory operation (lights, fans, etc.)
The "adaptive learning" ONLY affects the drive-by-wire function. The O2-sensor based A/F correction is very limited in how far it can deviate from the fuel injection map.
So, the computer can only make relatively minor adjustments "by itself".
If you want to change the ingition timing or the accessory controls, the ONLY way to do that is with a new tune file. Also, because the ECU can only make minor changes to the fuel mapping by itself (and those changes aren't neccisarily "correct" anyway), you still need a tune to make significant changes there as well.
Keep in mind that the ultimate programmed GOAL of the ECU isn't "performance" from the factory. It's a combination of performance, mileage, emissions, and whatnot. An aftermarket tune file is optimized for performance.
10-23-2006, 04:08 PM
#7
4th Gear Member
Thread Starter
Join Date: Aug 2006
Location: NYC
Posts: 1,516
RE: Why buy a CAI & tune if the computer adjusts 2 your driving?
I totally hear what you're saying, but he had all my payment information (he knew I was going to buy). I'm sure if there was something I should know about in regards to that specific question -- he would have had no problems telling me.
ORIGINAL: skilz4u2nv
wow someone trying to sell you something told you something you wanted to hear to move his product?! thats unheard of! lol
my car dealer toldme i was a buff young man and that i needed to buy this car... so i did lol
all jokes aside i bought my cai and tuner from brent so i know he is a good guy but i have read in reviews and previews that these mustangs do have some sort of adaptive learning on them
ORIGINAL: mAnYsTyLeS
I just got off the phone with Brent at Brenspeed and he said the computer re-learning everything blah blah blah is a myth. If you have a good tuner...everything should be OK
I just got off the phone with Brent at Brenspeed and he said the computer re-learning everything blah blah blah is a myth. If you have a good tuner...everything should be OK
wow someone trying to sell you something told you something you wanted to hear to move his product?! thats unheard of! lol
my car dealer toldme i was a buff young man and that i needed to buy this car... so i did lol
all jokes aside i bought my cai and tuner from brent so i know he is a good guy but i have read in reviews and previews that these mustangs do have some sort of adaptive learning on them
10-23-2006, 05:05 PM
#9
Join Date: Nov 2005
Posts: 16
RE: Why buy a CAI & tune if the computer adjusts 2 your driving?
ORIGINAL: CrazyAl
The ECU has many functions:
ignition timing
fuel injection mapping
drive-by-wire functions
accessory operation (lights, fans, etc.)
The "adaptive learning" ONLY affects the drive-by-wire function. The O2-sensor based A/F correction is very limited in how far it can deviate from the fuel injection map.
So, the computer can only make relatively minor adjustments "by itself".
If you want to change the ingition timing or the accessory controls, the ONLY way to do that is with a new tune file. Also, because the ECU can only make minor changes to the fuel mapping by itself (and those changes aren't neccisarily "correct" anyway), you still need a tune to make significant changes there as well.
Keep in mind that the ultimate programmed GOAL of the ECU isn't "performance" from the factory. It's a combination of performance, mileage, emissions, and whatnot. An aftermarket tune file is optimized for performance.
The ECU has many functions:
ignition timing
fuel injection mapping
drive-by-wire functions
accessory operation (lights, fans, etc.)
The "adaptive learning" ONLY affects the drive-by-wire function. The O2-sensor based A/F correction is very limited in how far it can deviate from the fuel injection map.
So, the computer can only make relatively minor adjustments "by itself".
If you want to change the ingition timing or the accessory controls, the ONLY way to do that is with a new tune file. Also, because the ECU can only make minor changes to the fuel mapping by itself (and those changes aren't neccisarily "correct" anyway), you still need a tune to make significant changes there as well.
Keep in mind that the ultimate programmed GOAL of the ECU isn't "performance" from the factory. It's a combination of performance, mileage, emissions, and whatnot. An aftermarket tune file is optimized for performance.
OK, well - back to the subject at hand then. .... sorta'
if this ECU is so adaptable and programmable, why is this process a Black Art instead of becoming a Cottage Industry?
instead of this industry opening up (as it looked like it would 5-10 years ago), its actually shinking!
there are now fewer players and its less competitive!
who's responsible for that and how can we change it?
10-23-2006, 06:05 PM
#10
5th Gear Member
Join Date: Jan 2006
Location: Florida
Posts: 2,398
RE: Why buy a CAI & tune if the computer adjusts 2 your driving?
I remember when I took my car to get Dynoed, I hadn't upgraded my tune in a while because everyone convinced me that the adaptive learning had been removed from the process. So if this is true, I only Dynoed at 274 RWHP and 292 RWTQ on a Mustang Dyno with C&L Intake and Brenspeed's 93 oct tune. Along with Pypes O/R H-pipe. Evolution loaded their tune in and I dynoed 300RWHP & 317 RWTQ on a fresh tune. Yet at the track they performed identically, down to the hundredths of a second.
Which leads me to believe if I had updated my tune prior to the dyno, my Brenspeed tune would have most likely been at or close to the same numbers as the Evolution tune.
Which leads me to believe if I had updated my tune prior to the dyno, my Brenspeed tune would have most likely been at or close to the same numbers as the Evolution tune.