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my G37 is Redlining 8200Rpms 5at

Old 06-09-2010, 12:02 AM
  #16  
StopTheExcuses
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I have a 6mt Sedan and my car has a fuel cut right at 7500. Is the fuel cut on the Auto G37s set at 8200?? That's very strange.
Old 06-09-2010, 12:45 AM
  #17  
Namir
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Originally Posted by KhaldeanHabibi
thats all that which is y im so confused about y its reving so high
Yea that is pretty weird, I figured you had a tune like Cobb or UpRev that changed your limiter.

I'm assuming you already tried resetting the ECU by disconnecting your battery for a while?
Old 06-09-2010, 05:53 AM
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Ivoidwarranties
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How do you guys figure it's out of the power band?
Old 06-09-2010, 06:01 AM
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AvosG37
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my car too. i have stillen gen3, fi cf x-pipe exhaust. it goes 8000 to 8200 when i push fulll gas. i think it should be fine.
Old 06-09-2010, 09:39 AM
  #20  
BOXER83
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It is a delay in the computer to change to the next gear.
Old 06-09-2010, 07:14 PM
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eksigned
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i think theres been some confusion. i don't think the op's pushing it past redline. with the mods-is it okay that the CAR itself is pushing past redline? is that your question?

car has a fuel cut off point. you'll be fine.
Old 06-10-2010, 12:10 AM
  #22  
KhaldeanHabibi
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thanks for all the info everyone uve been a great help

Last edited by KhaldeanHabibi; 11-12-2011 at 11:48 AM.
Old 06-10-2010, 12:15 AM
  #23  
RISKY GUY
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mine shifts at 8k.
have a tune also.
and the 5 at has some serious lag when upshifting.
although it's always a pefect shift.
Old 06-10-2010, 01:21 AM
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tokyo_gaijin
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I am confused... isn't there a rev limiter set at 7500?
Old 06-10-2010, 09:43 AM
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DJMatrix1067
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Well, based on my experience the redline in our cars can vary. I notice that under normal driving conditions (after i've been driving reasonabl for a while) and I abruptly floor the car and redline, the shift point is 7500. However, when I take my car to the track, the redline is as high as 8200 in full auto. I believe it is actually variable. Could just be me being crazy, but I have seen mine hit 8200 before, but only after racing for a while.

I'm bone stock 08 5AT.
Old 06-11-2010, 06:42 PM
  #26  
Q8y_drifter
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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.
Old 06-11-2010, 06:55 PM
  #27  
oOmikeyboy
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^ yeah. Taking it to the dealer will just raise more questions. "Sir, why are you redlining the car?"
Old 06-11-2010, 07:47 PM
  #28  
Namir
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Originally Posted by Q8y_drifter
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.
Good reply, sounds logical to me.
Old 06-11-2010, 11:05 PM
  #29  
Gazan37
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Originally Posted by Ivoidwarranties
How do you guys figure it's out of the power band?
If you look at a dyno, you'll see theres a slight drop in HP after 7k. Ideally you want to shift when its at its peak so anything after that will be out of the maximum HP range.


However different mods affect the car different way so your max HP might move up to a higher rpm. You can't really know without a dyno I think.
Old 06-12-2010, 11:43 PM
  #30  
Ivoidwarranties
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Originally Posted by Q8y_drifter
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.
What the hell is "redline setpoint"???

Originally Posted by Gazan37
Ideally you want to shift when its at its peak so anything after that will be out of the maximum HP range.
I don't think that's correct at all. In fact I know it's not. There is still usable hp after peak hp. It all depends on when and how hard it drops off. "Peak hp" is NOT what dictates your shift point.

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