Just raise the rpm up 200-300 rpm's while in neutral then down shift (at speed you do not "need" to brake at). If the car bogs down, you needed more rpm's, if it lurches forward, then you gave it too much rpm's. Two light blips of the throttle tend to work easier then one blip- allowing the trans/engine to equal out better.

It's quite easy. You can even rev match from 5th or 6th down to 3rd after just a little practice.

 

wait a while before trying that one tho

 

totally by feel, and by ear. This is a great car to rev-match with.

I find that it's much easier to rev-match an S2000 than many other car's i've had. My 97 M3 was a great car but I could not consistently rev-match. My 05 Xterra is near impossible, what with the DBW delay and the slow throttle response.

 

Definitely do it by feel and just over-rev when in doubt.

 

This is the way I learned how to do it properly. The whole point of this exercise is to smoothen the transition during down shifts. I personally do a one-way rev-match instead because it's fast but that a different topic.

Stick to a certain speed (very important here) and shift up one gear and down one gear, over and over and over whiel trying to do it without upsetting the balance of the car. When you blip the throttle, make sure you're a good 500-1000rpm above where you want to be. Start off blipping high because that leaves you more time to release the clutch and play around to see where smooth engagement will be. Remember, don't try to be fast. It's not about being fast, it's about being smooth.

Once you're smooth with that, start blipping less and releasing the clutch sooner. When you can do this consistently (8/10 times perfectly and 2/10 times close enough) then you can start thinking about using it in different situations. Keep in mind that the feel/time required to do this smoothly is different for almost every rpm range because rpm's drop faster the higher rpm you're at.

The only time I double clutch on the street is the downshift before I accelerate hard to pass someone. Other than that, it's a pretty useless skill. It took me 3 track days to figure out how to do it properly there and trust me when I say no amount of street driving will help you build the coordination required to do it smoothly on the track. Only track time will help.

P.S. You can still be hella fast without heel-toe. This shouldn't be a priority for drivers on the street. You will never need to heel-toe when you touge. It's something that'll come NATURALLY if you keep pursuing faster times on the track.

 

Also, check the tension in your throttle cable. If it has a lot of slack, this kind of blipping is harder to do consistently, and, it will get even harder to be consistent as you try to do it quicker.

Use your hand on the accelerator pedal to feel for excess slack. I like the tension adjusted so there is still some visible side-to-side slack in the cable as seen under the hood, but no noticable up-and-down movement of the pedal (as felt by hand) without producing some throttle movement (or in the MY 06 case accel sensor movement).

I've had to do this adjustment on almost all of my manual trans cars I've had over the years, even my new '06 S2000 had a bunch of noticable pedal travel before anything would happen.

 

Get some gears. All you do is tap the gas and you're perfectly where you need to be to rev match.

 

synchomesh transmissions are difficult to rev match because there is no direct connection between the gears but nominally you just jab the throttle and it will slip easily into gear when the revs are matched. You shouldn't have time to think about how big a blip you need just give it a good solid jab (7K RPMs worth anyway). You'll hear it.

 

If you are dumping the clutch quickly after the shift, try slowing down your clutch release. If you get anywhere near to a rev match and engage the clutch smoothly you won't upset the car greatly. With practice you will get the rev matches timed more accurately and then you'll be able to speed up the clutch release without jerking the car around.

You can tell when the rev match is close to correct, because the car will shift into the next gear with very little effort.

Even with practice you'll still miss the intended rev point once in a while, but when that happens you just release the clutch a little more slowly so that the difference is accomodated smoothly.

Also, practice in a straight line rather than when cornering, and don't practice in places where your attention should be on traffic or road conditions.

 

great advice in this thread