Chat & Social > The Bar - General Chat
can we please clear something up?
lurch_917:
quick dabs on the breaks IE like cadence breaking does work in some situations as you have stoped the spin and for a moment you have drive to both sides till the diff catches up . its only a few seconds mind you but loads of dabs means loads of drive used this technique in deep snow in a car loads of times in Scotland's hills
Disco Matt:
--- Quote from: V8MoneyPit on August 13, 2010, 12:38:07 ---
--- Quote from: Disco Matt on August 13, 2010, 00:05:18 ---What about the one of blipping the throttle then lifting off if a wheel is spinning? That one does work .............
--- End quote ---
This, I believe, is to do with the fact that maximum torque transfer to the road is attained at the point just before the loss of traction. By lifting off and then blipping the throttle repeatedly, you are applying moments of traction. Effectively, it's the reverse of cadence braking.
You may well be right about clearing the treads too, of course.
--- End quote ---
I suppose it's similar to traction control again - you're detecting slip and backing off, then trying to give it more welly, then backing off, and so on.
I just know that I was told about the technique, tried it, found it to work and have attempted to refine it since! :lol:
Range Rover Blues:
Actually, the science is contradictory. Limiting friction, maximum friction if you like is experienced between surfaces that are in statonary contact. Friction is overcome with speed.
So in practice, the wheel with grip is stationary and the brakes (Equal calliper pressure) will have more grip than the spinning wheel on the other side, as the braking effort is lessened dues to the relative speed of the disk/pads.
I would guess the technique has something to do with stroring energy in the spinning wheel ect that can somehow be harnessed by appliying the brake.
Off couse if you have an ATB diff that is a different matter, the stationary wheel has 3 or 5 times the torque of the spinning one, so a little brake on the spinning wheel results in a lot more power to the wheel with grip.
Now how they work, that makes me head spin.
90Mike:
I can see a bomb hole challenge coming on at this years Birthday Bash :D
Chris Putt:
Not entirely sure what the reasoning is but I too am an advocate...... Im thinking along the lines of a more crude version of fiddle braking?! I currently motor around in an old BMW 3 series (E30- 1990) no traction control and a standard open diff....
Now, in the snow it is 'lively' to say the least but I have found using a gentle application of the handbrake (acts on rear wheels only as per) if one back wheel is spinning tends to a) slow the spinning and b) get the other wheel doing something and helps gain grip and movement!
Chris
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