Sure it doesn't hurt anything. I think alliedforces hit the nail on the head by saying its a waste of energy. Heel/toe if you can at the track... Smooth and cool rev match on the road- if you want to. No need for anything fancier than that IMO. Parts are gonna wear out either way and you'll never ever know if all that rev matching/dbl clutching even helped. But if that's what you have to do for piece of mind then dowhatchagottado!!

 

Double clutching just makes a downshift take longer, I've never bothered to do it. I heel-toe to 2nd and then coast to a stop pretty much 100% of the time.

 

+1..

 

Thanks for the input guys

So they way he does it, rev match at neutral then shift down, is what you guys do with rev matching?

Is there a difference with rev matching while at the downshifted gear with the clutch held down?

 

Rev matching is similar to double clutching but without the neutral steps.

1. clutch
2. downshift
3. bleep the throttle
4. let out the clutch

 

You've got steps 2 and 3 mixed up. You blip the throttle to make it easier to slip into the lower gear, otherwise you're still making the synchro do all the work.

 

If you do it right, you don't need a clutch at all unless you are starting from a stop.

Learn what speed matches rpm in said gear and slap it into place in the sweet spot between positive and negative load.

 

Actually it doesn't take any more time. You've got to wait for the engine to spool up anyway. Maybe my left leg just gets bored waiting around.

Thanks Cory, what you said is what I was feeling, but wasn't really sure about. Now the funny thing is I have to actively concentrate to keep my left leg pushed down when I hit the throttle. The two motions are so ingrained together.

 

thats VERY hard to do in lower rpms. you end up grinding **** up lol. although used to work in my G really well. no clutch at all rev matching 4-3 & 3-2. i was so used to it tht id do it by habit in my sti and all id end up doing is coasting and revving my engine for couple seconds till i finally giveup and just press the clutch.

 

Some mixed up terminology between rev matching, double clutching and heel and toe. Rev matching is what's in the video. Double clutching is similar, but with the throttle blipped with the clutch out and the transmission in neutral while downshifting - sounds like a lot to do, but becomes second nature after some practice. Heel and toe has TRADITIONALLY meant adding braking to double clutching which requires manipulation of all three pedals simultaneously. I say "traditionally" because it seems that there are varying definitions being used.

I always double clutch when downshifting, it is the smoothest way to do it. Rev matching is OK, but it doesn't allow for the speed of the transmission internals to match up with the rest of the drivetrain. If you listen carefully while watching the video, the guy says that he never does it between second and first, probably because rev matching won't allow that shift to be smooth or easy, while double clutching will.

Yes, stuff wears out and there are synchros in the transmission, but as Superusdm pointed out, there is more load on the synchros when you don't double clutch. Why add wear when you don't have too?

 

I just recently started double clutching, before I would just pop it in neutral and brake, but I'm loving it. Getting some really nice and clean downshifts

 

If in a straight line and I need to stop as fast as possible I won't rev match. I use the greater engine braking to slow faster. Its not great for the clutch but I usually only do it if its important to stop now (I am hard on the brakes as I go down the gears) I ususaly only rev match if needing to down shift before a turn. It doesn't upset the suspension as much if you are already at the limit of grip. I think if I rev matched every where people would be pissed. My cars to loud lol

 

I rarely hell-toe on the street if ever. I don't need to threshold brake during my daily commute. Rev match w/o the clutch lift is all you need on the street to keep the trans happy and the ride smooth for the passengers. Been doing this since I started driving 30 years ago. Every manual car I drive is driven this way.

Now on the track (Solo), there are some corners on our courses that require a 2-1 heel-toe down shift. This is where I do it.

BTW I'm a left foot brake driver at the Solo. But that's a whole different skill.