[QUOTE]Originally posted by drjekyll2000
[B]I thought rev matching was for downshifts.

 

Am I missing something? My S2000 is the smoothest and easiest shifting car I have ever driven and I shift it the same as all other manual transmissions I have ever owned. It seems the smoother the better for the machinery. Please correct me if I'm wrong.

 

isn't that called power shifting? when you don't let off your throttle while pressing in the clutch and shifting..? I think some racing drivers do it.. i seen it on best motoring videos too.. I heard that it's pretty harsh on your car though..

 

I know what the professor means. It was hard to shift smoothly. It has to do with the more agressive gearing and a wider RPM range. Its hard to describe it, but basically you need to lift during the shift, but not as much as you would in other "normal" cars.

 

Dr. T maybe you are missing something. The S2000 is good but it's transmission does have it's minor flaws and it is not the smoothest shifting trani out there. It is far from the hardest shifting transmission and I can't imagine power shifting every time I switched gears. It does greatly help when you drive the S2000 if you do have a good shifting technique.

You may call me stupid but I like to share my car with people and let them drive it. I have withnessed all kinds of techniques and drivers, some of them wincing thinking that the car was not easy to shift.

Like any Stick Shift the key is matching revs but with a six speed there is a lot less difference between the gears

 

I find that the faster I shift, the smoother the car is.

 

I went from a Mustang GT to the S2000. I had to change my shifting style a little, but I think that's to be expected given the different types of engines.

 

The rate at which revs drop in neutral is a function of engine compression, rpm, and flywheel weight. The number of revs it needs to drop on an upshift is determined by the gear ratios and rpm.

If the Prof is finding he has to stay on the gas, he's shifting relatively slowly; meaning that if he lets off, the revs would drop below the point where they will be in the next gear, before he's completed his shift.

Prof, you're probably (understandably) used to cars with much less responsive engines. Rather than staying on the gas, another solution is to try shifting a bit more quickly. With our car's notoriously "notchy" gearbox, though, you should switch to GM Synchromesh transmission fluid, which board members (including myself) have found to be a near miracle-fluid in terms of reducing that effect.

 

[QUOTE]Originally posted by flytojungho
isn't that called power shifting?

 

The method used for shifting this car is no different than any other manual transmission. It does however have a much broader rpm range in which to do it. And, depending on where you're at in the range and how quickly or slowly you shift, it can make a big difference. Depending on your technique there can be a big difference between upshifting and downshifting, as it relates to smoothness. Bottom line - if done properly there is no reason the car can't be shifted very smoothly at any speed, up or down. Double clutching and rev matching when downshifting will definitely enhance the smoothness and safety when downshifting but if you are not driving your car at its limit on a track, it's not essential.

Some folks, including myself, experienced a notchy feeling in one or two gears. For me it was 3rd. This situation has corrected itself with time. Apparently this gear just needed a longer period of time to seat in properly.

If you are not lifting the accelerator pedal for those split seconds when upshifting, I think you will damage the drivetrain rather quickly due to the unnecessary strain you're putting on it.

As for changing the transmission fluid to something other than Honda's MTF, I would use caution since this could easily void your warranty and based on the driving method you've described you will need it.