Tyres Pressures - Lesson
Discussion
I've been using a crap pressure guage for some time now, and today checked them on a garage pump. Shock horror...... I've been running on 17/19 psi. Inflated them to 22/24 and now seems so much sharper through the bends. I tested them for 40 miles this morning, though the twisties whilst listening the Jimi and decat. Blue sky too. Perfect.
Please don't tell me the garage pump is wrong too. I suppose its time to invest in my own pressure guage.
Please don't tell me the garage pump is wrong too. I suppose its time to invest in my own pressure guage.
My car is handling way better today with the pressures increased.
I have a hand-held digital gauge (admittedly it is about 5 years old) and the analogue one on the pumping head and there is a possibility that both are inaccurate at this stage.
I'll be getting a decent one shortly as well.
I have a hand-held digital gauge (admittedly it is about 5 years old) and the analogue one on the pumping head and there is a possibility that both are inaccurate at this stage.
I'll be getting a decent one shortly as well.
I`ve always thought that. When you think about it, it`s an absolute scandal! 
Julian64 said:
Do you lot find much difference in small changes of pressure then?
I'll tell you how good I am at noticing a difference in tyre pressure....
Driving my dad's S Class Merc today, the tyre pressure warning bleeper goes off, warning messages all over the dash. No panic, car runs on runflats.
Drive around looking for a petrol station and the steering feels odd, so I wiggle the wheel about and proudly announce to the old man that the problem is 'obviously' on the front. Find petrol station with working airline (having passed 6 stations to find a working one!) to find that the offside rear only had 19psi in it (its a Merc, so 32-34 psi, none of this cerb 24psi malarky).
Of course I climbed back in the car and told my dad that the problem was indeed at the front
FUBAR said:
Julian64 said:
Do you lot find much difference in small changes of pressure then?
Of course I climbed back in the car and told my dad that the problem was indeed at the front
I upped my pressures by the recommended amount for 'fast european travel' and the car was all over the place. Dropped them back to normal again and she's as straight as a die/dye (??). Drove home last night in the driving snow and slush and she was a solid as a rock !
:givingupnowasI'verunoutofsimilies:
The only way of getting a truely accurate reading is by using a 'point to point' certificated and calibrated gauge. 99.9 per cent of garage forecourt systems are inacurate. The standard hand-held units are only useful for inflation purposes and to be honest i'd only use them in a emergency as most pneumatic systems contain water contaminated air.
I only use the compressor at work to top mine up, as i know our lines are water free (weel almost) and use nitrogen for high speed stability and less road noise...apparently.
a good digital gauge will set you back about £50 any less and you gets what you pays for.
I only use the compressor at work to top mine up, as i know our lines are water free (weel almost) and use nitrogen for high speed stability and less road noise...apparently.
a good digital gauge will set you back about £50 any less and you gets what you pays for.
central said:
Anyone know of a decent gague?
Ive got one of these....use to use it back in the days when i raced....acurate to 1%, and not overly expensive either...http://buy1.snapon.com/catalog/item.a
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