7AT Bad upshifts
7AT Bad upshifts
When i am using Manual mode on the 7AT transmission and pushing the engine hard, I Try to upshift right at 7000-7500rpm but it sometimes doesn't work at all and keeps revving past 8000rpm. it normally upshifts lightning fast but at High rpm just works terribly for me has anyone else experienced this?
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From: Earths toilet: Houston Texas
https://www.myg37.com/forums/g37-cou...ml#post2921978
First off, the ACTUAL redline set point is not 7,500, it's 7,600rpm. I know it's a small difference but that's what it actually is according to Nissan/Infiniti.
Second, for the people who drive MT's and are asking why he's going that far, he's not. It's the car. He pushes the pedal, it goes all the way to redline and shifts where it's supposed to shift. He can't control how far it goes past 7,600rpm without manually changing the shift point using a tuning software.
Second, you're not actually hitting anywhere over 8K RPM on the stock rev limiter settings. The needle does go past 8K, yes, but the crank is not actually spinning that fast. Datalog the car and see. The highest my car revved according to the datalogs I did using Cipher software is 7725rpm. From inside the car looked like it was revving all the way to 8K. Most of the time it will dip into the 8K range during the shift. This is normal, every auto G does that.
Nothing is wrong with your car so no need to take it to the dealer or anything.
Second, for the people who drive MT's and are asking why he's going that far, he's not. It's the car. He pushes the pedal, it goes all the way to redline and shifts where it's supposed to shift. He can't control how far it goes past 7,600rpm without manually changing the shift point using a tuning software.
Second, you're not actually hitting anywhere over 8K RPM on the stock rev limiter settings. The needle does go past 8K, yes, but the crank is not actually spinning that fast. Datalog the car and see. The highest my car revved according to the datalogs I did using Cipher software is 7725rpm. From inside the car looked like it was revving all the way to 8K. Most of the time it will dip into the 8K range during the shift. This is normal, every auto G does that.
Nothing is wrong with your car so no need to take it to the dealer or anything.
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From: Earths toilet: Houston Texas
^^ OP are you feeling the rev limiter kick in and the car go weak? Or is it just running up to 8k like the above information states with no power loss? Otherwise it sounds normal ...other than the lame delay that we all experience all the time...
Yea i guess it is the rev limiter as the car slows down like hell.
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