is it ok to shift into 2nd gear while going 60+mph?

Xan

I worked out a (ruff estimate) table for you, so you know the rpm to speed in each gear.

I based it on the sports tire with manual:

AK370Z

Thanks XAN! Judging by the chart, DEF 3rd gear!

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gumpy

can't our cars hit 100khp/62mph in 2nd gear?

Matt

My Nismo (should be same as base) redlines in 2nd gear right at 62 mph.

Xan did indicate it was a rough estimate. Thanks for the chart!


My personal experiences, while catching a light or needing to get out of a hairy situation on the highway, I'll drop into 3rd if I'm below 60. Otherwise, I'll use 4th. You just gotta play with it and see what you're comfortable with. Same as up-shifting, really.

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Xan

There are many reasons why it's only an estimate.
Some reasons are that how the tire deforms, which is influenced by another 100 things. So I used a general rule. The gear ratio's and final drive I used might not be excact, I just got them of the inet. And so on, at the same time if your accelerating up to red line, than quickly shift, there could be some inertia that accelerates the car while you already pushed the clutch. And how many people would keep a car at red line steady state second gear to see their speed. :-)

Anyways moral is the only way to truly know is using the fun way, the excel sheet way is just an indication.