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i have never driven a car with tracton control but i didn't think TC would come into play cruising on unsealed roads as i thought you have to loose tracton for TC to work......is this with CDL engaged or dis- engaged?Quote:
Originally Posted by alittlebitconcerned
i have never driven a car with traction control but thought you had to loose traction for TC to kick in?Quote:
Originally Posted by alittlebitconcerned
is this with CDL dis-engaged?
maybe engage CDL and leave the fuse in place as ABS would be handy if say a roo jumps out in front of you
Considering the TC doesn't function over about 50km/h I call BS :DQuote:
Originally Posted by alittlebitconcerned
If you are getting TC cutting in on fast dirt- something is very wrong...
Hope you got the idea :cool: tyre pressures adjust and centre diff lock when on dirt .
I run 31/10.5x15 in a heavy:eek: D1 and i run 35 psi and centre diff lock on gravel roads;)
Our Disco handles way better on gravel at speed with the CDL in. Without it sometimes it will understeer, others oversteer depending on incline, camber, road surface and road speed. With CDL in the understeer is moderate if braking hard into a corner but it's very predictable and easily corrected with application of throttle.
However, it is ABSOLUTELY IMPERATIVE that you have the same tyre diameter front and back if you're going to drive that way. Be aware that nearly all nominal tyre sizes measure slightly differently across the brands, so a BFG 225/75 R16 AT will be different to a Goodyear MTR of the same nominal size... etc etc.
As others have pointed out, tyre pressure is important.
If you are going too fast for the conditions, changing the tyre pressure, tyre size, tread pattern or brand of tyre won't help much. :)
There are plenty of gravel roads where 60 is too fast. Some surfaces that look reasonably smooth aren't much better than diving over ball bearings.
I reckon he is referring to the ABS rather than the TC. I have had a few :o's on gravel with the TC "skipping" over the top of the gravel rather than digging in.Quote:
Originally Posted by Tombie
But I doubt this is the problem with the original post. I would support the high pressure making the back end rather jittery.
Knock the tyre pressures down for gravel, leave the CDL disconnected for all hard surfaces and lock the CDL only when you find that you do have wheel spin.
Sock absorbers that are past their prime or too light for the job, are another cause of tail wag.
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Yeah, like others I'd say tyres down to about 35 (my BFG ATs go best at 35 and my MTRs at 32) on skatey gravel, same size tyres front and rear and lock the CDL on the loose gravel.
When I first got Scorpion ATRs on my D4 I found them a little un-nerving in the wet, specially the front-end when cornering. They felt a little skittish. I was disappointed as I'd read such great reviews about them.
I checked pressures....all 40psi+. Dropped them to placard pressures (33 -36psi) and they are good as gold.
Funnily enough, a mate of mine just got 17" Scorpions fitted to his Triton work ute and he stated that he felt that they were not quite right. I checked his pressures...all 40psi+. His placards state 29psi when unloaded! Thank god he didn't get to drive it in the wet!!!