All You Need to Know About Different Tunes
#176
Senior Member
Everyone please stop using "learn down". The feature you are refering to is the driver desired torque vs actual torque output. If the ECM senses via the airloads (MAF and MAP) seen that the car is exceeding the driver desired torque the ECM will modify the desired boost in order to meet the desired (target) torque. You can never remove the torque based ECM controls the ECM has but they can be set higher than the car can acheive through tuning.
#177
Senior Member
Everyone please stop using "learn down". The feature you are refering to is the driver desired torque vs actual torque output. If the ECM senses via the airloads (MAF and MAP) seen that the car is exceeding the driver desired torque the ECM will modify the desired boost in order to meet the desired (target) torque. You can never remove the torque based ECM controls the ECM has but they can be set higher than the car can acheive through tuning.
I have seen and tuned enough LNFs to tell you that there are most definitely still peak HP/TQ limits set within the ECM.
#179
Senior Member
iTrader: (4)
I have read several times of people suggesting that the F35 is inferior to the F23, when in fact the F35 has a much higher torque rating as seen HERE;
F35 = 258ft-lb
F23 = 170ft-lb
Those numbers are pretty tough to refute... but this is just another piece of info that is being repeated around here and on other web sites...
Just trying to figure this all out...
#180
Senior Member
Is it possible that the peak torque tables you speak of are somehow associated with the torque capacity of the F35?
I have read several times of people suggesting that the F35 is inferior to the F23, when in fact the F35 has a much higher torque rating as seen HERE;
F35 = 258ft-lb
F23 = 170ft-lb
Those numbers are pretty tough to refute... but this is just another piece of info that is being repeated around here and on other web sites...
Just trying to figure this all out...
I have read several times of people suggesting that the F35 is inferior to the F23, when in fact the F35 has a much higher torque rating as seen HERE;
F35 = 258ft-lb
F23 = 170ft-lb
Those numbers are pretty tough to refute... but this is just another piece of info that is being repeated around here and on other web sites...
Just trying to figure this all out...
Understand! This is what I have been told and witnessed NOT actual experience. There might have been some slight of hand going on.
#181
Senior Member
Is it possible that the peak torque tables you speak of are somehow associated with the torque capacity of the F35?
I have read several times of people suggesting that the F35 is inferior to the F23, when in fact the F35 has a much higher torque rating as seen HERE;
F35 = 258ft-lb
F23 = 170ft-lb
Those numbers are pretty tough to refute... but this is just another piece of info that is being repeated around here and on other web sites...
Just trying to figure this all out...
I have read several times of people suggesting that the F35 is inferior to the F23, when in fact the F35 has a much higher torque rating as seen HERE;
F35 = 258ft-lb
F23 = 170ft-lb
Those numbers are pretty tough to refute... but this is just another piece of info that is being repeated around here and on other web sites...
Just trying to figure this all out...
#182
Senior Member
iTrader: (4)
... The feature you are refering to is the driver desired torque vs actual torque output. If the ECM senses via the airloads (MAF and MAP) seen that the car is exceeding the driver desired torque the ECM will modify the desired boost in order to meet the desired (target) torque. You can never remove the torque based ECM controls the ECM has but they can be set higher than the car can acheive through tuning.
First safety: Turbo overspool (IIRC this is directly relative to rev limit; which is why the LSJ can be set to a higher rev limit than the LNF)
Second safety: "Torque ceiling" or "Torque management" based on actual torque capacity of the F35 (although this allows for aftermarket "bolt on's" to be used, it will auto adjust if the ECM calculates the torque will be exceeding the transmissions limits)
This would make sense to me...
#186
Senior Member
2010 Chevrolet Cobalt SS Turbocharged Coupe For Sale - CarGurus
#187
Senior Member
When you try and explain the what the car actually does to control torque nobody ever understands it and they still insist on calling it "learn down". I use the term simply to keep fluidity to the conversation otherwise people get lost (more lost than usual I should say) when you start talking about airloads and driver desired torque settings and the wastegate duty cycle being the actual limiters and not the fabled "learn down".
#191
Senior Member
So therefore is it a waste of time to get other mods if i plan to get GMS1?
I was planning on getting the K&N Intake and the outside possibility of a DP as well.
I was planning on getting the K&N Intake and the outside possibility of a DP as well.
#193
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#195
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SO, is the GMS1 a good tune to still be able to put bolt-ons on afterward, or should i just do bolt-ons and wait to use a better tune after the warranty is up?
All this talk about learn up and down and all around has my head f'd up...lol
All this talk about learn up and down and all around has my head f'd up...lol
#197
Senior Member
Hey AARON!!! I'll sell you all the boltons you need. They're off the car and ready to go. Check my sig for what I've got. I'm going to start acting my age and trading the Cobalt for a 2012 Cruze which is on order right now. You even live here in FL which would make it real easy. Take a short trip to Daytona and take a look. Bring some money and I'm sure we can work something out. And if anybody else wants the car I'm open to offers. It's a 09 sedan and is cherry with 29000 miles. Owned by a litle old man that only drove it to NY and back a couple of times.
#198
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Hey AARON!!! I'll sell you all the boltons you need. They're off the car and ready to go. Check my sig for what I've got. I'm going to start acting my age and trading the Cobalt for a 2012 Cruze which is on order right now. You even live here in FL which would make it real easy. Take a short trip to Daytona and take a look. Bring some money and I'm sure we can work something out. And if anybody else wants the car I'm open to offers. It's a 09 sedan and is cherry with 29000 miles. Owned by a litle old man that only drove it to NY and back a couple of times.
#199
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I am wondering this to. I have GMS1 and I keep thinking about getting a downpipe and catback exhaust. So will the car actually make more power? Or would it be a waste of time and money?
#200
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Ive decided not to spend $450 on gms1 then another $200 on the install = $650.
I am gonna go with the trifecta "stealth" tune for $350 + shipping and be done with it.
Hope all goes well with it and nothing crazy happens in the winter like some have said
I am gonna go with the trifecta "stealth" tune for $350 + shipping and be done with it.
Hope all goes well with it and nothing crazy happens in the winter like some have said