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Cruising gears question

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Old Dec 24, 2008 | 07:05 PM
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Default Cruising gears question

What gears are you guys in when cruising at 60mph ?
70mph ?
After I did my turbo set up, car likes 5th gear better than 6th. 6th feels a little luggish.

I assume its from a drop in compression.
I'm using 6.0 truck heads to drop mine.

Just curious what gears you prefer to cruise the highway in doing 60 and 70mph
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Old Dec 24, 2008 | 07:25 PM
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highest possible for best mileage at those speeds
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Old Dec 24, 2008 | 07:29 PM
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Originally Posted by LS6427
highest possible for best mileage at those speeds
yeah, i am aware of that..........
i guess this is for more towards the turbocharged guys.
how did your car feel before and after you turboed cruising at 70mph?
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Old Dec 25, 2008 | 08:24 AM
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I have 3.25 gears and an 8.6:1 motor. I still cruise in 6th at those speeds. 70mph is about 1400rpm. But if I want to speed up at all I have to down shift. It will also lose speed if going up hill in 6th.
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Old Dec 25, 2008 | 11:49 AM
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I found when I took my v-6 setup from stock heads/mild cam to stage 3 heads stage 3 cam it was MUCH pickier when rolling/cruising on the highway. I don't know about the v-8 PCMs but I was able to tweak my AE fuel and timing tables to gain some power when rolling/cruising which got rid of the "shudder" if you want to call it that.
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