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this has been an ongoing war between some mates and i about aggresive tires and beach work. by aggressive i mean jt2's, centerpede's, swampers, boggers etc. some claim they act like a paddle tire like the motobike guys use, and would work great on the beach, while others say they'll dig straight down.
so i'm after opinions from people who've run something like this before on the beach. how did it go? what sorta car? what sorta pressures?
i'm thinking of running my mongrels on the vit on the weekend at straddie just to give it a try.
I dont see why they wouldnt? but i know most of the surf life saving utes ive seen just run AT tyres. The most important is the longitudinal (cant half tell ive been studying surveying and cartography all week) spread of the tyre, more so that than width, which allows you to 'float' over the sand.
thats what i thought dj. they're an inch wider and 2 inches taller, so that will help, but they also bugger up the gearing being bigger and heavier to try and turn
Paddle tyres and the like are fine as long as you have the horsepower to drive them. If you don't they will just dig down slowly bogging you.
On a Suzuki I've found that a wide non aggressive tyre works an absolute treat on sand, especially aired down. But when i had the swampers on sand I really needed to keep the boot in and the revs up to have anywhere the same perfromance.
i`ve run HT`s and MT`s in the same size in the sand
HT`s i could sit there spinning my heart out and plod along - with the MT`s i had to be careful not to bog myself, but i was going more places and getting there quickly
mmmmm, i dunno what to do, i've run both my little bald 26's on the beach (fun with the locker ) and the 30mt's, maybe i should just give the mongrels a go
Heck have a look at some of the most dapable rigs on sand - Rails.......High HP, paddles, low weight & sometimes often 2wd.......
probably the biggest key...HP/weight.....
When I first bought the Paj it had the standard HT Yokohamas on it, and I could drive straight off the highway, onto the beach, up and down the beach all day, then off again, without touching the tyre pressures.
Once I put the Cooper's on I got onto the beach all right, but couldn't get off at highway pressures. At 24psi (swb=not real heavy) the Cooper's have been fine.
I think Gonzo has the key to it - the less aggressive tyres don't grip well, but they don't dig either, so you might be able to "creep" thru' trouble with the tyres spinning slowly. The more agressive tyres will either push you forward, or dig a hole.
just an idea run your mongrels backwards so they push you up and don't dig you in
Stu
[quote="COOP"] By the way Mr engineering Guru maybe you better get another calculator or learn how to use it![/quote]
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Paddle type tyres are great if you can make sure you always dig forward 2 inches for ever inch you dig down and have ownership of a fuel depot.
I've never had problems with M/T's, but also my Landrover had good bar treads and bad, the good army issue ones were a soft compound but wore out fast, the others were 12ply and had sidewalls like steel so wouldn't bag out til 10psi.
Pat,
Brisbane, Australia,
JK 4door Rubicon, currently 4 Sale :(
It's a Jeep thing, I don't understand........
we're not camping on the beach this trip, so thought it'd be the best time to give em a run and see how they go cause we wont be doing as much beach driving as usual
I run 35x11s at 8psi on the beach at Portland but have the ponies to turn them...they work fine... but we are usually there with the dune buggy club who run 2wd rigs with fat, fat...fat closed tread all terrains...and they hammer...
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when me an yld04b used to head up the beach (when he had the old zook with 32' mongrels) i used to be able to out drive him quite easily both running 6-7 psi
they just used to dig like a biatch(mongerls) where mine will float along all day (MTR)
i reckon run the 30's
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righto, you lot have convinced me to give em a try. it probably wont go as good as the 30's, but what the hell, you never never know if ya never give it a go
antt wrote:righto, you lot have convinced me to give em a try. it probably wont go as good as the 30's, but what the hell, you never never know if ya never give it a go
Exactly.
Wouldnt hesitate to take the swampers out when i get the chance to see how they perform on sand
antt wrote:righto, you lot have convinced me to give em a try. it probably wont go as good as the 30's, but what the hell, you never never know if ya never give it a go
I ran the mongrels on the beach (v. soft sand) and they dug in like a bitch. They were OK if you could keep some wheel speed to them. This was on my LWB Sierra which will be a little lighter than your Vit. Air them down plenty will be the key, I would definitly give it a go . Run them forwards and backwards for a comparo and post up the results!!
And for the record the best tyres I have used for sand are aired down AT's with about 25% tread. On my old zook I had no worries on the beach with these in 2wd.
Ran A/T's on some beach trips and they were great. Even towed a disabled vehicle 12km along Stockton at 18psi down to 15psi when I got stuck. Have done similar trips on the current Cooper ST's and they work OK but you just need a lighter foot.
Richard
2005 Landcruiser TD100+a few bits
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