View Poll Results: Do you guys downshift when decelerating?
Yes, all the time.
232
22.92%
Yeah, most of the time
355
35.08%
Nope, once in awhile though
355
35.08%
Never
70
6.92%
Voters: 1012. You may not vote on this poll
Downshifting
so most of you say rev match and double clutch is the best way. how much different would wear be if you didnt double clutch and just eased the clutch out smoothly after the downshift?
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
rev matching is good if your engine is making massive torque (think a good FI setup), but on most cars it's not 'needed' provided you don't try anyhting stupid like 5th gear to 1st @ 40mph type of thing.
The biggest thing heel and toeing does is create stability when down shifting to reduce the amount of weight transfer as you enter a corner.
Double cluthing is something I haven't done in a long time and then not very often, with a modern synchro gearbox there shouldn't really be any need to double clutch.
The biggest thing heel and toeing does is create stability when down shifting to reduce the amount of weight transfer as you enter a corner.
Double cluthing is something I haven't done in a long time and then not very often, with a modern synchro gearbox there shouldn't really be any need to double clutch.
With my left foot I push the clutch in. With the heel of my right foor I romp on the brake, with the tip of my right foot tap the gas. Release the clutch while still romping on the brakes. Then accelerate out of the coner.
**Not for begginers or regular street driving**
As for daily driving I'm with the other guys, only when I want to be heard.
**Not for begginers or regular street driving**
As for daily driving I'm with the other guys, only when I want to be heard.
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by 00tals1
Its easier to do brakes than a clutch. Thats my 2 cents.
Seriuosly it's not a decision between one or the other as EVERYONE should use both.
Like running upto a tight bend, simply shifting from 4th to 3rd will often slow the car down enough with just a light tap on the brake pedal. It's not hard and better than just using the brakes and then forcing the engine to labour, or shifting once the revs drop way down.
Might as well utilise what the engine can do.
I really must do a vid up of performance road driving UK style, as I think many of you guys will find it a very different discipline to driving on American roads.
Only thing is my Camaro is Auto, so I'll probably do two vid, one with my TR7 as it's manual and one with the Z28 because it's a Camaro
. Just need to wait for Spring as winter roads are horrid. I naturally heal-toe almost everytime I slow down. It's very bennificial for me especially when entering a corner... it's nice for the heel toe.... even if I'm not driving real fast... the car feels way stable that way.... just good physics!
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Originally Posted by 98silverSS
so most of you say rev match and double clutch is the best way. how much different would wear be if you didnt double clutch and just eased the clutch out smoothly after the downshift?
puts more load on the clutch... and it will wear it out faster..... typically the longer that the clutch pedal is in between being pressed all the way down or not being pressed at all.... the more of a toll it is taking on your clutch as when your clutch is "in between" it's letting the clutch slip.... grinding away your clutch
Originally Posted by 300bhp/ton
The biggest thing heel and toeing does is create stability when down shifting to reduce the amount of weight transfer as you enter a corner.
Originally Posted by tonyrssll
I know I'm a Newbe, but what is heel to toe? If I need to slow down just a little bit I down shift. Coming to a complete stop, I'm half and half.
Braking with your toes and sliding your heel on the gas to rev match the rpms.
Last edited by TL00CamaroSS; Feb 17, 2006 at 12:03 PM.
Originally Posted by TL00CamaroSS
Braking with your toes and sliding your heel on the gas to rev match the rpms.
Or in our cars, you can use the side of your foot, and you don't have to use your toes on the brake and heel on the gas... Basically heel toe is when you break and use the accelerator to rev match with the same foot while downshifting
Its called a double clutch
Originally Posted by Grimes
Exactly.
If you want to downshift this way (ie. "double clutch"):
1. Clutch in, Shift into neutral
3. Clutch out
4. Blip throttle to rev to RPM you will be in lower gear
5. Clutch in, Shift into lower gear
6. Clutch out
If you do this properly and quick enough, you will not get the "lurch" that you normally get when downshifting. Also, the shifter will offer no resistance going to the lower gear.
If you want to downshift this way (ie. "double clutch"):
1. Clutch in, Shift into neutral
3. Clutch out
4. Blip throttle to rev to RPM you will be in lower gear
5. Clutch in, Shift into lower gear
6. Clutch out
If you do this properly and quick enough, you will not get the "lurch" that you normally get when downshifting. Also, the shifter will offer no resistance going to the lower gear.
I have always been amazed at how many people cannot downshift on deceleration properly. It is like reverse shifting. It took me about 3-5 minutes to figure out where I can drop a gear or 2 at a time and not have a chug or neck snapping experience. 
Plus you can force a gear into place in a mid-range RPM window of like 3600-4200 in all gears. Granted you are going over a hundred in 5th gear when trying to slip 6th. I stopped doing this after I figured it out. It might have some unintentional wear and tear behind it.
Originally Posted by TL00CamaroSS
Braking with your toes and sliding your heel on the gas to rev match the rpms.
I do it just about all the time out of habbit. As long as you blip the gas and match the rpms your fine and won't be doing any extra wear if done correctly. I like the extra control it gives me while cornering mostly but it can help with braking alot to but what i love most about doing it is how my borla pops! the chick's dig it too