Something about all of this has been bugging me... and I decided to wait until I had some facts in my hand.

This is only partially correct. The problem is that 3.1 bar is probably going to give you an unnecessarily stiff ride.

And these numbers seemed reasonable too but not what I run nor have stashed with my tire pressure gauge. I would also expect a higher pressure in the front due to the smaller tire. Fact is that there are two recommended tire pressures (for our 18" tires) and they are based on a max speed. If your speeds are going to be less than 160mph then you should be running 37.7PSI (2.6 bar) front and 36.3PSI (2.5 bar) rear. Anything sustained over 160MPH requires the max 3.1 bar ie the 44.96PSI number front and rear.

While I agree with the statement, a 5PSI difference is easily felt. Note that we are dealing with approx 8PSI difference.

I might also add that the reason I looked into most of this was in regards to the front lifting system (FLS) failures. While I seriously think the whole FLS thing is a KONI/Lamborghini conspiracy, I've come to believe that "hitting" things like speed bumps and gutters etc while the lifting system is up (and under extreme pressure) contributes a bunch to the failures. Having tires set to much higher pressures than required must contribute to this somehow - just my wild thoughts.

-mick

PS If I ever meet up with any of you in a bar etc, ask me about my (and my girlfriends) failed tire (on another car) experience 4 weeks ago. I ended up in a high speed flight over a freeway median due to a failed 3 week old FIRESTONE tire. Was one hell of an "E Ticket" ride. I managed to maneuver and miss oncoming traffic (combined speeds at least 130MPH) by an inch or less. Even the CHP officer behind me who witnessed most of the action thought the whole thing was amazing. I, on the other hand, haven't had too much sleep since.

Mick, what happened???

This is from my manual, I run 2.6/2.5, 38psi/36psi:

__________________
And now my friend, the first rule of Italian driving. Whatsa behind is not important!

I like to do high speed runs so thats why I said 3.1.
I would rather be safe than sorry.

__________________
Only The Extreme Win!

Shah,

there are different "correct" air pressures for Different Types of Use...what is Best for one type of Use, is not neccesarily Best for another Type of use!!

Tire pressures need to be checked and perhaps adjusted often. There is no single right number....

I have not done the conversion, but I have always done 42 ish on the front and about 40 on the rear, was recommended slightly higher if I was going on the track, but if you are on the track the heat produced will prolly up it to 45+ all round anyways.

For some reason I always thought it was 14.7 too ? is it that long sinece I did physics ??! where has this 14.5...... come from, its a conspiracy !

>>For some reason I always thought it was 14.7 too ? is it that long sinece I did physics ??! where has this 14.5...... come from, its a conspiracy !<<

Maybe the hole in the Ozone Layer let some Atmospheric Pressure out since I went to school also

ah-haa !

Found this (esp for Itadmin......)

1 Atmosphere equals
14.7 psi = 1013 mBar which = 406.9" H2O which = 29.92" Hg which = 760 mmHg which = 101,325 Pascals

1 Bar does not equal 1 Atmostphere, specifically it is 1.013 (or 1013 millibars), therefore :-

14.5 x 1.013 = 14.6885 (or rounded up to 14.7)

I knew I wasnt crazy - I knew I had heard 14.7 somewhere (granted it wasnt bar but PSi of 1 Atmos.)

source : http://www.topac.com/pressure.html

Thats very good - had bugged me at the time.

-mick

Well I'll be a Sunny Beach!!!

Just when I thought I had been fooled all these years I find out I wasn't as far out of the knowledge loop as I thought.......