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needs some Thoughts on Shift Points with my power band

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Old Apr 14, 2008, 09:57 PM
  #16  
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Staring at the tach and timing shift points just right takes too much time away from paying attention to what your doing in a car at that level. Trust me I know. I have a huge bright yellow shift light right damn near in my face and I hardly ever see it come on, it's coming on I assure you. But in the the time you run the car you don't have much time to think about it.
It's kinda like have sex with your girlfriend or wife, after time you know what she likes and dislikes, and becomes a natural habit.
Just react to what the car does/sounds. Instinct is the key
Old Apr 14, 2008, 10:02 PM
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I have a shiftlight in my car directly in my face too and i dont remember the last time i even noticed it.. LOL
Old Apr 14, 2008, 10:05 PM
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Originally Posted by Mike@AwdMotorsports
I have a shiftlight in my car directly in my face too and i dont remember the last time i even noticed it.. LOL
HAHA! Yup, you know what it's like then. I don't even know why I even have the damn thing in there
Old Apr 14, 2008, 10:07 PM
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I would shift at 10k Highest average of horse power and torque

Mark your power band ever 50 rpms then take an average of the total rpms that drops each gear, whatever gap has the biggest average is the best shifting point.

Cheers!
Old Apr 15, 2008, 06:34 AM
  #20  
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Very good input guys Im going to move my shift light right in front of my face I might stick a really bright led one so it blinds me
Old Apr 15, 2008, 08:24 AM
  #21  
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Hey Paul just curious but can you tune the AEM w/ the NLTS at that hi up in the rpm's?

Do many of the high HP cars use this
Old Apr 15, 2008, 01:45 PM
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Originally Posted by dexmix
have you ever calculated thrust curves?

you basically multiply out your torque by each gear, all on the same graph. that way you can see where the applied torque crosses from gear to gear. you generally want to stay in the lowest gear possible depending on how drastically it falls off.

in general people get tripped up, by the fact that power is plateauing, but never account for the fact that gearing almost always makes a bigger difference than the power curve. so unless you have some crazy torque dropoff (which you don't) you want to wind out each gear

edit: the X axis is usually MPH.
Dex, very impressive. I guess you should help me on Wed night.

Originally Posted by fimotorsports
I don't think you will have time to think about shifting or barely even looking at the tach... I go by the sound the car is making and how the car is reacting
+1000, I have seen Danimal driving his beast, he's right, you have to drive the car and watch the track for a crazy 8 second ride. plus that tach goes way to fast wit that kind of power level to think you are going to shift exactly at some number.
Old Apr 15, 2008, 01:47 PM
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my money goes on 1025
Old Apr 15, 2008, 02:28 PM
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Between 10,200 and 10,300rpms and let 4th gear ride out..
Old Apr 16, 2008, 05:41 PM
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10500rpm i wanna try
Old Apr 17, 2008, 01:51 AM
  #26  
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Originally Posted by 9sec9
9800 and let it hit peak torque on shift.
i disagree, i would stay in the lower gear as long as possible to take advantage of torque multiplication as long as power drop off isnt too bad (which it isnt).
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