Samurai_Blue
Yolo Whippin'
lets make one when youre down here
Driving Techniques: Double-Clutch Downshifting
- Thread starter JDMxDB8
- Start date
94rs-gharp
New Member
4. Rev match (Must be in neutral with clutch out)
this right here rev matching what is that?
this right here rev matching what is that?
JDMxDB8
Raceline USA
While in neutral and the clutch disengaged, you have to blip the throttle at this particular time. By blipping the throttle, you allow the RPM to increase that way when you shift down to the lower gear, the RPM will be at the appropriate spot on the power band.4. Rev match (Must be in neutral with clutch out)
this right here rev matching what is that?
I hope that made sense. :mrgreen:
OGstackadoIIa
TEAM LlGHTSPEED RACING
When you downshift aggressively without rev matching, as I assume you do now, the car kind jolts as it brings your engine revs back up to where they will be in the lower gear you selected. Rev matching is matching transmission speed and engine speed which allows the aggressive downshift to be smooth without jolting.
The form you chose to quote, just for clarification, is for double-clutching. When I heel/toe, I rev match with the clutch engaged as I'm dragging from one gear to the next for obvious time saving reasons
The form you chose to quote, just for clarification, is for double-clutching. When I heel/toe, I rev match with the clutch engaged as I'm dragging from one gear to the next for obvious time saving reasons
94rs-gharp
New Member
While in neutral and the clutch disengaged, you have to blip the throttle at this particular time. By blipping the throttle, you allow the RPM to increase that way when you shift down to the lower gear, the RPM will be at the appropriate spot on the power band.
I hope that made sense. :mrgreen:
thanks guys they both make sense! i am gonna start practicing for daily driving!When you downshift aggressively without rev matching, as I assume you do now, the car kind jolts as it brings your engine revs back up to where they will be in the lower gear you selected. Rev matching is matching transmission speed and engine speed which allows the aggressive downshift to be smooth without jolting.
The form you chose to quote, just for clarification, is for double-clutching. When I heel/toe, I rev match with the clutch engaged as I'm dragging from one gear to the next for obvious time saving reasons
OGstackadoIIa
TEAM LlGHTSPEED RACING
Lower RPM's are a lot more unpredictable. Go somewhere with long, sweeping turns that you can just roll out of the throttle on, somewhere you don't have to use the brakes but still need to slow down a bit. Improperly rev matching can cause the car to become very disrupted which can cause you to panic because your footing is so different.
Seriously, become comfortable with it before you start pushing it harder and harder
Seriously, become comfortable with it before you start pushing it harder and harder
94rs-gharp
New Member
definetly man i wont be doing what that guy didin the video no time son around my streets lmao
JDMxDB8
Raceline USA
Most of the guys I know, including myself use the heel-and-toe downshifting technique as opposed to the double-clutch downshifting technique. Personally, heel-and-toe is easier for me. Try both out, see which one you're most comfortable with, then practice. One day, it'll be automatic and you won't even think about it when you do it. :thumbs upthanks guys they both make sense! i am gonna start practicing for daily driving!
94rs-gharp
New Member
now the heel toe how is that performed?
OGstackadoIIa
TEAM LlGHTSPEED RACING
I listened for a short time, then when I saw the boots and him saying to use the heel, I turned it off.now the heel toe how is that performed?
1. Rev matching. When you downshift, your RPM's rise in the lower gear which can upset the balance of the car entering the turn, thus making it harder to control. Rev matching is matching the RPM's you will be entering in the lower gear by blipping the throttle. if you shift from 5,000 rpm's in 4th to 3rd gear, you'll be roughly around 6,000 or so when you reach third gear, so rev matching by using the throttle will even these out for you.
A way I practiced was on turns I took all the time, sweeping turns especially. I would work on this exclusively until you have a good idea of what rpm you'll run when gearing down. Do this in a straight line before any braking, so you can get use to it without haaving to worry about sliding your foot over; that may get confusing for you. Go to a country road, all straight and just practice gearing down, you'll get the hang of it sooner of later.
2. Heel/toe downshifting. To heel/toe, you must rev match, that's the point of heel/toe downshifting is to slow down with the brakes while also using the engine revs to slow the motor. The purpose of this is the same as above, but with the added benefit of braking at the same time so it's a much more fluid and rapid descent while entering a corner.
Shifting in the middle of a corner is usually pretty stupid and unecessary, do your braking and shifting before you begin your maneuver. The friction you're using to brake and turn is shared, so you are not able to get maximum angle while cornering, and this can cause you to understeer heavily.
The reason I said that guy is an idiot in the video is subjective tyo my driving style. Boots, terrible for spirited driving. Some redneck may think not, but let's see his times in comparison to someone wearing sneakers, or in my case a wide pair of DC's. When he said use your heel, that's f***ing tough. Try twisting your heel like that and tell me how comfortable that is and how confident you feel with holding you foot steady. When you do that, you run a greater risk of unsteady braking and slipped pedals. Whnever you blip the throttle, you may or may not have an issue with putting more pressure on the brake at the same time. using the right side of your foot should work a lot easier for you, and I suggest a pair of wide shoes with a soft sole. My favorite driving shoes smell bad and half barely any life left, but I can pop to 7,500 comfortably with those f***ers.
How I got comfortable was with leaving the car in neutral and blipping the throttle while trying to hold a steady amount of pressure on the brake. Learn the difference in pressure according to side of the foot and desired affect.
3. Double Clutch Downshifting. This is the same as heel/toe, but you don't rev match with the clutch pressed in.
engage the clutch, take it out of gear and set in neutral, disengage the clutch, blip the throttle to rev match, engage the clutch, slap it in the desired gear, disengage the clutch.
The purpose of this, from my understanding is that it is easier on the clutch and syncros, but obviously a lot more work and room for error. f*** my clutch heel/toe for life... Or until I get something that it's no longer necessary to do, like a 350Z or whatever.
You get so use to it, you'll do it daily driving and your girlfriend will lick your nuts for it
JDMxDB8
Raceline USA
http://www.clubintegra.com/board/showthread.php?t=73050&highlight=downshiftingnow the heel toe how is that performed?
OGstackadoIIa
TEAM LlGHTSPEED RACING
idk how that would work in an auto
94rs-gharp
New Member
my mind just got cluster fucked I was trying to read that stuff i got lost lol ill figure it out ill read it when im more focused
klutchDb7
ლ(ಠ益ಠლ)
Drop the knob to a lower gear and blip the throttle as you would regularly downshiftingidk how that would work in an auto