Throttle blip on Downshift

[Optical]

turbo engines are pretty low compression so it makes f-all difference to smoothness, to me at least. On high compression NA engines, esp with a rwd, it can be a must on the track to avoid instability

[GC8E2DD]

I've almost stacked the car multiple times trying left foot braking. I do however trail brake all the time. My first car was a Bambina with no synchros so I have a bad habit of double declutching when completely unnecessary. I don't think I'd ever get the car into first for something like this however without doing that. First is incredibly hard to get into at speed in a Subaru.

[Guest]

 GC8E2DD said:

I've almost stacked the car multiple times trying left foot braking. I do however trail brake all the time. My first car was a Bambina with no synchros so I have a bad habit of double declutching when completely unnecessary. I don't think I'd ever get the car into first for something like this however without doing that. First is incredibly hard to get into at speed in a Subaru.

2.5 - no 1st gear reqd.

[Munkvy]

I rev match on downshift, only started doing it in the last year or so and have found it of significant benefit for reducing wheel locking in a FWD that I race. I do it in my WRX rally car too, but I didn't lock wheels often in that before anyway, so not sure if it makes much of a difference. I am not worried about shock on box, purely stability under brakes. After doing it for a few weeks in the daily driver I got very used to it and now do it instinctively in most cars?

At the same time I stopped changing down gears till the gear I needed for the corner and just select the gear I want to exit the corner in. So rev matching is kinda important there as often you are going down 2-3 gears at a time, so increased risk of locking wheels.

And Sam, I don't left foot brake, too bloody confusing! I think you need to spend lots of time go karting to get comfortable with that?

[Koom]

 Munkvy said:

And Sam, I don't left foot brake, too bloody confusing! I think you need to spend lots of time go karting to get comfortable with that?

A dog box is also hugely beneficial. I've sat with drivers who were left foot braking with standard gearbox's and the dancing around on the pedals along with the split seconds of no braking as they swapped feet from braking to clutching and back to braking wasn't the best for the cars stability. With a dog box though, totally different and heaps faster.

[Zenki]

EDIT: thinking of the wrong type of gearbox. I need to sleep and/or coffee.

Dog box is where instead of synchros you have a set of beefy teeth ("dogs") that slot into the gear they mesh with. Basically as soon as they engage the shift is complete, and they're happier when you shift them by throwing them into the next gear as quickly as possible. Don't clutch, don't need to wait for synchros to engage, just bang and get on the throttle.

Also called "crash boxes".

Edited June 1, 2015 by Zenki

[Koom]

Yep, just put the great stick into the desired position and it will go into that gear. No matter what. But allows for no need to swap left foot from brake to clutch to downshift. Just brake and basically smash down through the gears as needed. Much smoother for weight transfer etc as a result. Then it allows the driver to use constant(ish) throttle and regulate with the brake mid-corner instead of using one or the other.

Sequential was another step up again as flat shifting on the up shift helped speed up that side of things too and less chance of hitting the wrong gear on the downshift.

[Joker]

I think someone is watching "us"

this just popped up on the ol fb

 

It's becoming less important thanks to rev matching tech, but this is an awesome old school technique you should learn!

Car memes

How to Heel-Toe Downshift + Rev-Match | The Guide

carthrottle.com

[loner]

Not willing to take driving lessons from a 12 year old.

[boon]

 loner said:

Not willing to take driving lessons from a 12 year old.

To be honest Brendon Hartley looks about 12 as well but if he told me how to drive I'd damn well listen.