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Discussion Starter #1
After looking at the dyno charts I'm thinking that 6500 RPM seems to be the point for the most horsepower, for a slightly modified GA16. But does that mean that it is the best place to shift??
 

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Your electrical friend
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I always found that around 5K was where optimal shifting was for my '93 XE but I only had a CAI. The way I look at it, if the car doesn't feel like it's pulling anymore, then you're not making any more power, so it's time to shift. Now in my SE-R it's closer to 6K or more, it seems to pull all the way to redline.
 
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Discussion Starter #4
Yeah i'm thinking the same as james. i can feel the lose of power right after 6500, but i wasn't too sure if i shifted there that it would put my next gear in a good place.
 

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VVL'd
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Because it is.
"The VTC likes to advance the cam at over 6600 rpm for some reason, perhaps to create a drop in power to encourage the driver to shift sooner. " - Engine Modifications by Mike Kojima

But like James said, shift as close to redline as you can. So going into the next gear, it is in the optimal rpm range.
 

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Cone Dodger
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just to add: "vtc kicks in at about 1500 rpms, and stays on until 6500 as verified in status request indicated in nissan's consult 2 factory scan tool".........then valve cuts off and retards intake cam...
 
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Discussion Starter #7
All the way to the redline. Thanks for your help.
 
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