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Posted: Tue Sep 28, 2004 8:52 am
by roc box
swampers are very stiff my mate runs his at 5psi on his 60 series no bead locks iguess ill just have to get my lazy ass out of the seat and play with pressures a little more......or maybe ill make the handbrake do it[i call herthe handbrake because she tries to put a stop to everything]

Posted: Tue Sep 28, 2004 8:55 am
by droopypete
Roc box, are you running tubes? these help at lower pressures,
I have a soft top shorty and run 33x13.5 on 8.5" beadlocked rim, obviously with the B/L's I don't have to worry as much about popping a bead, so when I defate I usualy go straight to 1-3 psi and at these pressures they flex like Nadia Comaneci after a rub down :lol: before the B/L's I would loose the bead at about 5 psi (which is where they are just starting to work).
On the highway I run no more than 18 psi, I know everyone has a horror story of when the tyre service fitted their new tyres and put 36 psi them, smaller cars need less pressure, a patrol is twice as heavy as a zook and needs 36 a zook don't.
Also someone questioned what effect if any lower gears would have on popping beads,
heaps,
the lower the gear, the more tourque is applyed, the easier the rim spins on the tyre, there are other factors that make beads fail, pressure, side loads, big right foot and others.
if you can't afford B/Ls at the moment fit some tubes (the correct size) and as you are an ex tyre fitter fit them with water not lube, and have a play with pressures at home let them down to to zero and drive over a brick, see what happens to tyre, and get the tape messure out and make a note of how much diff clearance you sacrify at 2psi.
Happy trails.
Peter.

Posted: Tue Sep 28, 2004 9:16 am
by roc box
yeh thats what i did on weekend the brick thing starting to bag nice at 5psi am running 20 on road i thought it was best to put forward whole package eg lockers etc showed mate right front at 5 and left rear at 15 he reckoned 5 didnt look to low raps round brick real nice thanks for the input on rego papers it says 790 kilo tare so she real light

Posted: Tue Sep 28, 2004 9:18 am
by roc box
not running tubes either

Posted: Tue Sep 28, 2004 9:25 am
by roc box
hey pete got some useless info on tubes for ya a lot of korean made tubes get a prob called carbon black its where the butyl rubber hardens in tiny spots and then pulls small parts out of tube causing unknown punctures after about 5 or so of these ya start to get pretty annoyed

Posted: Tue Sep 28, 2004 9:47 am
by droopypete
roc box wrote:yeh thats what i did on weekend the brick thing starting to bag nice at 5psi am running 20 on road i thought it was best to put forward whole package eg lockers etc showed mate right front at 5 and left rear at 15 he reckoned 5 didnt look to low raps round brick real nice thanks for the input on rego papers it says 790 kilo tare so she real light


do it again with 0 psi all round, and dont forget to messure the diff.
Peter.

Posted: Tue Sep 28, 2004 1:26 pm
by roc box
i will at 20 ive got 270mm under diff