Deflating in the First World
- Mad Manny
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Deflating in the First World
Watching a few Ozzie Youtube Channels as well as a few North American shows, I noticed something:
Being backward, these guys still use the old Imperial system & refer to PSi tyre pressures.
That's Pounds per square Inch (we stopped using Pounds & Inches in the early 1960's #progressive).
We use Bar or KPa (basically the same thing)
The other thing I noticed is that they barely deflate.
Guys refer to dropping (dropping! ) to 30PSi, sometimes to 20PSi (here in SA we consider 20 ps i to be a LOT) & then occasionally, to 15PSi.
Now 35, 20 & 15 PSi are not that soft:
35 psi = 2.41 bar or 241 KPa
30 psi = 2.07 bar or 207 KPa
25 psi = 1.72 bar or 172 KPa
20 psi = 1.38 bar or 138 KPa
15 psi = 1.03 bar or 103 KPa
So these guys are 'airing down' or 'Deflating' to around 1.8bar & sometimes to around 1.4 bar.
They NEVER go below 1.0 bar.
If I deflate, then I either go to 1,2, or 1.0, if its thick sand, I'll drop lower, I've been to 0.6 bar.
I can't 'Deflate' to 30psi because that's basically my normal running pressure...
Anyone agree with these Canucks, Yanks & Ozzies?
Being backward, these guys still use the old Imperial system & refer to PSi tyre pressures.
That's Pounds per square Inch (we stopped using Pounds & Inches in the early 1960's #progressive).
We use Bar or KPa (basically the same thing)
The other thing I noticed is that they barely deflate.
Guys refer to dropping (dropping! ) to 30PSi, sometimes to 20PSi (here in SA we consider 20 ps i to be a LOT) & then occasionally, to 15PSi.
Now 35, 20 & 15 PSi are not that soft:
35 psi = 2.41 bar or 241 KPa
30 psi = 2.07 bar or 207 KPa
25 psi = 1.72 bar or 172 KPa
20 psi = 1.38 bar or 138 KPa
15 psi = 1.03 bar or 103 KPa
So these guys are 'airing down' or 'Deflating' to around 1.8bar & sometimes to around 1.4 bar.
They NEVER go below 1.0 bar.
If I deflate, then I either go to 1,2, or 1.0, if its thick sand, I'll drop lower, I've been to 0.6 bar.
I can't 'Deflate' to 30psi because that's basically my normal running pressure...
Anyone agree with these Canucks, Yanks & Ozzies?
"No one ever got stuck - in mid air!"
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'
- Mad Manny
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Grips will also mention how your Ford will shake to pieces at 30 psi = 2.07 bar or 207 KPa on the Northern Cape roads....
"No one ever got stuck - in mid air!"
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'
- Mad Manny
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Johannes, 4WD 24/7 are/were sponsored by 'Dominator Winches' so they pull out the winch faster than a porn star pulls out near the end of a shoot...
Also, Shauno is not that good at Wheelin...
Also, Shauno is not that good at Wheelin...
"No one ever got stuck - in mid air!"
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'
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During my first dune trip in Swakopmund my guide ( a fellow 4x4 CF member named Bartho) showed me some ropes.
My first 5 attempts to get up a dune with tyres at 1 bar failed. He suggested 0.8 bar and up I went no problem.
So low pressures are beneficial.
And I could not believe 0.2 bar made such huge difference.
No idea how the imperial guys get away with higher pressures. Maybe that is why they get stuck so often.
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My first 5 attempts to get up a dune with tyres at 1 bar failed. He suggested 0.8 bar and up I went no problem.
So low pressures are beneficial.
And I could not believe 0.2 bar made such huge difference.
No idea how the imperial guys get away with higher pressures. Maybe that is why they get stuck so often.
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- grips
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Dom Fokkers. ( Down Under)
Doing the NC roads I never go above 1.6.
Even on tar.
Only going above 1.6 when fully loaded..
Sand 0.5 and lower.
But then I look at profile rather than pressure.
Thing to remember you drive on air. Steel wheels were an Ox wagon feature
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Doing the NC roads I never go above 1.6.
Even on tar.
Only going above 1.6 when fully loaded..
Sand 0.5 and lower.
But then I look at profile rather than pressure.
Thing to remember you drive on air. Steel wheels were an Ox wagon feature
Sent from my YAL-L21 using Tapatalk
Last edited by grips on Fri Sep 11, 2020 6:13 am, edited 1 time in total.
You will never find me without Stroh or a 4x4
- grips
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There is only one thing that is useful when inflated hard & that is definitely not a tyre
Last edited by grips on Thu Sep 10, 2020 8:20 pm, edited 1 time in total.
You will never find me without Stroh or a 4x4
- grips
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BF's pappie. The one set on the 79 were 80k plus when I had the last look.
Think they will do 90k..
Did a trip from Lüderitz to Walvis on a set of BF's at 0.6. Replaced them at 90k km...
Think they will do 90k..
Did a trip from Lüderitz to Walvis on a set of BF's at 0.6. Replaced them at 90k km...
You will never find me without Stroh or a 4x4
- KurtG
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Oh dear, someone here says BFG are good tyres . Wait for the Cape Softroader to come and tell you that BFG are crap on X-Trails.grips wrote:BF's pappie. The one set on the 79 were 80k plus when I had the last look.
Think they will do 90k..
Did a trip from Lüderitz to Walvis on a set of BF's at 0.6. Replaced them at 90k km
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Flex is overrated
- Mad Manny
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Luckily X-Trail Junky skulked back to Anythingbutt4x4.cum otherwise he's be giving his 'one trick pony' views on BFG's here....
"No one ever got stuck - in mid air!"
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'
2010 Fortuner D-4D 4x4 'Fearless'
2006 Conqueror Conquest 'Gearless'