Thread: TD5 Auto towing camper on Sand

Originally Posted by buzz66

Originally Posted by beefy

cdl and traction control off and you will fly up.

I CAN HEAR YOUR CENTER DIFF SCREAMING IN PAIN FROM HERE!

WHY ARE SO MANY PEOPLE CONCERNED ABOUT HAVING THE CENTER DIFF LOCK ENGAGED.

Originally Posted by buzz66

I give up, the level of understanding is just not there I guess

Buzz66, at the risk of sticking my nose where it may not be wanted, what beefy wrote is ambiguous. You have taken it to mean:

"both cdl and traction control off, and you will fly up".

I can't speak for beefy but I know he does advocate that the cdl should be engaged when traction is lost. I think the correct interpretation of what beefy wrote is:

"using cdl, and traction control off, you will fly up".

Hope this clears up some miss understandings here, if not then I'll quietly butt out.

Originally Posted by Ferret

Buzz66, at the risk of sticking my nose where it may not be wanted, what beefy wrote is ambiguous. You have taken it to mean:

"both cdl and traction control off, and you will fly up".

I can't speak for beefy but I know he does advocate that the cdl should be engaged when traction is lost. I think the correct interpretation of what beefy wrote is:

"using cdl, and traction control off, you will fly up".

Hope this clears up some miss understandings here, if not then I'll quietly butt out.

Ahhhh!

i see where we both got it wrong.


i guess that means we were all on the same page from the beginning.


cheers
Nick

OK at the risk of opening a can of worms here, why do people want the turn the TC off, my understanding of the way TC works is it stops wheel spin which slows momentum, now when the TC activates once it senses wheel spin, it should gain you traction and momentum again, in theroy

So has anyone put this to the test, put 2 D2s together and have one with the TC off and the other on and went up a dune to see which one goes the furtherest.

I have never turned mine off, even though I can.

We won't mention ABS, that's a whole other story

Baz.

we have done this, hastykiwi, ferret and i on a dune down south of perth. the two td5(one auto) both made it very easy. Peter in a v8 auto could not even lift on the bottom with out the traction control kicking in a stopping him. we pulled the fuse and he made it with in 10ms of the top and had to recovered from there. (with an f250 as my disco would not even move him). first i do in sand is kill the traction control and put the cdl in and i have never had a problem. some of the dunes that we tackle here are 800-1000m faces. Peter can back it up once the traction control was turned off his car never has a problem getting up.

Originally Posted by Redback

OK at the risk of opening a can of worms here, why do people want the turn the TC off, my understanding of the way TC works is it stops wheel spin which slows momentum, now when the TC activates once it senses wheel spin, it should gain you traction and momentum again, in theroy

The problem with TC in sand is that in some situations (deep very soft sand, long dune climbs etc) it just never seems to turn off, ie it is working on one or another wheel for long periods of time.

Now I know that should be good because it is said to prevent loss of drive to that axel. But TC is reactive, before is can kick in it must sense wheel spin, once that happens the breaks are applied to that wheel. Once it no longer senses spin the breaks are released. But it can't react to all these changes instantaneously. So if the situation with regards to traction at different wheels is changing very fast (like in trying to drive through sand) I think the wrong wheels end up getting braked at the wrong time some of the time.

In many cases I think TC in sand is not a hindrance but where it just appears to be going continuously then I think you have to conclude it probably is not helping and you can't be worse off without it and some times maybe even better off without it.

If it does help, then it is nowhere near as helpful on sand as a centre diff lock and tyres at the right pressure.

Just my theory.

Wandered into this thread a bit late..sorrty if I'm barging in. But noticed th mention of using Sport button with Low range on a D2a auto on sand. My understanding is this is NOT a good thing...in Low Range Sport mode becomes Manual mode. It won't change down or up unless the motor is about to stall. This is the opposite of Sport mode High range, which changes shift points etc to pep performance.

IMHO, the TC on D2a is significantly improved over D2's, barely flickering on most of the time in my experience.

I've just swapped from a 4.6V8 auto D1 with front and rear diff locks. My 03 D2a auto (chipped...thanks Tombie) is just as capable on sand, and blows it away off and on road. Couldn't resist planting it in the V8, it was excellent at digging 4 holes very bluddy fast.

Thats my 20c worth!!

[QUOTE=silverhammer;1107943]Wandered into this thread a bit late..sorrty if I'm barging in. But noticed th mention of using Sport button with Low range on a D2a auto on sand. My understanding is this is NOT a good thing...in Low Range Sport mode becomes Manual mode. It won't change down or up unless the motor is about to stall. This is the opposite of Sport mode High range, which changes shift points etc to pep performance.
QUOTE]

No, it works great! Allows you to keep the torque up without spinning the wheels (and causing T/C to kick in) ... this is in an Auto D2a. It pulls away off the line in 1st and very quickly upshifts to 4th and stays there ... no chance of stalling the motor

Kev..

Hey Kev, if it works for you, thats great. As a new D2a auto owner, I've been trying out all the stuff like HDC.. I read about the Low Range Manual/Sport setting, and tried it and mine does just that...won't change unless you do it manually. I think its for snow/ice.

Been out in the bush again today, in the mud. I'm so impressed with the D2a auto vs my old D1 auto V8. But I still bogged it up to a..hole!!! Could be the pilot.
Cheers
Max