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My 6MT vs Auto driving impression. Opinions please

Originally Posted by wdkwang I've been driving my 6MT for 14 months now and the bolt-ons I have are netting me around 310whp, untuned. Recently, I got a chance to

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Old 04-26-2012, 06:08 AM   #1 (permalink)
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I've been driving my 6MT for 14 months now and the bolt-ons I have are netting me around 310whp, untuned. Recently, I got a chance to drive around in a new bone stock '12 Auto for a day and I found it unusually torque-y driving around local. It felt like it had a bigger low-end punch than my car. I don't get it. My only guess is the mods I have pushed the power more up top.
The tq converter can do that, my experience driving an auto 370Z was that just like every other auto, it sucks. It cannot understand what the human mind is thinking when you barely tip into it, but do so fast. Do this in a manual, and all is well. Do this in an auto and you get: nooothhiinnngREVGOclunkcruiseupshift.

I hate autos of all sorts.
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Old 04-26-2012, 06:31 AM   #2 (permalink)
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The tq converter can do that, my experience driving an auto 370Z was that just like every other auto, it sucks. It cannot understand what the human mind is thinking when you barely tip into it, but do so fast. Do this in a manual, and all is well. Do this in an auto and you get: nooothhiinnngREVGOclunkcruiseupshift.

I hate autos of all sorts.

The ECU needs training with the auto. It needs time to understand your inputs. Once you hit 5k miles, the ecu knows your inputs. You are talking from test drives and very little experience on new autos. The Z auto works more like DCT than a traditional auto once broken in.

But anyway... to each his own.
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Old 04-26-2012, 08:22 AM   #3 (permalink)
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The ECU needs training with the auto. It needs time to understand your inputs. Once you hit 5k miles, the ecu knows your inputs. You are talking from test drives and very little experience on new autos. The Z auto works more like DCT than a traditional auto once broken in.

But anyway... to each his own.
ok, i heard this come up a few times. where can i read about this ecu "learning", because i havent seen any documentation on the subject. i dont question the validity, i just would like to learn the details of this technology, an how it applies to my car. any idea?
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Old 04-26-2012, 08:37 AM   #4 (permalink)
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ok, i heard this come up a few times. where can i read about this ecu "learning", because i havent seen any documentation on the subject. i dont question the validity, i just would like to learn the details of this technology, an how it applies to my car. any idea?
The Ecu is technically NOT a learning computer. But, it does get accustomed to our human impulses. if we keep pushing the car the sensors will try to keep up with our inputs. Its not like the ecu is trying to identify each individual and reprogramming the driving style for each person. But as you drive the car, the ecu will get coached along your daily driving response.
Try this. Drive aggressive for about a week and notice you will begin to feel improvements in throttle response of your car. But then drive like a granny for a couple weeks. After a couple of weeks go back to driving aggressive. The response time is slow. When I say learn. I don't mean learning. Its just the ecu on these cars seem to need coaching into faster responses.
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Old 04-26-2012, 08:43 AM   #5 (permalink)
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I believe the AT has slightly more torque versus the manual right?
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Old 04-26-2012, 08:47 AM   #6 (permalink)
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I believe the AT has slightly more torque versus the manual right?
Both cars are brake rated at 332hp/270tq. Manuals dyno higher in hp while automatics have faster straight line times. Track times are driver dependent.
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Old 04-26-2012, 11:28 AM   #7 (permalink)
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Both cars are brake rated at 332hp/270tq. Manuals dyno higher in hp while automatics have faster straight line times. Track times are driver dependent.
brake hp and tq are at the flywheel, before the tranny and minus attachments to the engine itself. An automatic's torque converter can act as a torque multiplier but always has some efficiency loss. Article:

Torque converter - Wikipedia, the free encyclopedia
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Old 04-30-2012, 01:01 PM   #8 (permalink)
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ok, i heard this come up a few times. where can i read about this ecu "learning", because i havent seen any documentation on the subject. i dont question the validity, i just would like to learn the details of this technology, an how it applies to my car. any idea?
It's called Adaptive Shift Control - here's a link to Nissan's patent filing with the US PTO (and you'll notice from the dates on the document that it's not exactly "new technology"): Nissan's Adaptive Shift Control Patent
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