My understanding is that the gearing profile and syncros were both optimized for high speed, high rpm shifting. As most tranny designs never see 8-9k inputs from the motor. I'm sure there is reading you can do via google.

It might be for this reason why I find clutch-less driving difficult below about 4k so I never do it anymore.
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The relative difference in speed is around 1k rpm between changes, regardless of the rpm. I'm not saying you're wrong, but I'd love it explained to me exactly how a shift from 6k to 5k differs from a shift from 9k to 8k to a synchro. I assume there's more kinetic energy to deal with, but I'm not sure.
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I will see what I can dig up. I do believe it was teeth and syncro related.

 

Thanks. Fwiw, my notchiness isn't in the gear engagement, its in the gate shift. Makes me believe my output spline is underlubricated.

 

I don't fully buy the whole whole claim that it's designed to shift better at higher RPMs.

As far as kinetic energy, at higher speeds a change of 1k RPM is more energy because the kinetic energy is proportional to the square of the speed.
http://en.wikipedia.org/wiki/Rotational_energy

In addition, the when shifting up from 2nd to 3rd you're not going to see a constant RPM drop. With constant vehicle speed, it'll have to drop by [1 - (3rd gear ratio)/(2nd gear ratio)].
(1 - 1.481/2.045) = 27.6%
So if you're at 8k RPM and you shift, it's losing 2,200 RPM. If you're only at 3k, it's only a change of 830 RPM. Using this speeds, this indicates that shift at higher RPM requires 7 times the energy reduction of the low RPM shift.

However the synchros aren't the only thing doing work. I'm sure there are other forces at work which are decelerating the transmission which are at work as well as the perception (at least for me) that this shift event should occur in constant time.

 

One of the best things in ever learned in regards to shifting is that it is two completely separate actions. Pulling the shifter out of second is one action, and putting it into third is another. It can be done relatively quickly, but god forbid you go from second straight to third. You go from second to neutral AND neutral to third.

 

Fully agree with xviper's commentary and the "two step" process. The S should be driven like it's in an endurance race, not a drag race.

 

 

so a little notchiness is normal? ive experienced this in my 6 speed 2.4 accord as well after i did the 5spd conversion to 6 spd. Did a tranny oil change, made no difference. Sometimes i think the notchiness is because of cold weather. also theres a clunking sound once i put it into gear. started to think it was normal...

then i bought my s2000 and noticed the same results...

idk what is with 6 speed, but i never had any problems like these with 5 spds. could it be im shifting wrong?

anyone want to chime in?

 

Of all the gear changes in this box I've always felt like 2>3 is one of the more notchy feeling changes compared to say 3>4 which is like butter.

 

I give it just the right amount of time for the shaft to slow and the cogs to naturally reach the same RPM before shifting up.

Paying attention to the feel of the upshift helps to determine the duration of the time it takes for the shaft to slow down appropriately to mesh.

After a while, it becomes a matter of habit.

14 years and every gear still feels perfect for my tranny.

If a person matches leaving the lower gear with properly timed throttle lift, and pressing the selector into the next gear perfectly timed and with light pressure, the car can actually be smoothly shifted without ever pressing in the clutch... not that it's a good idea.