Fitting my boost gauge finally.

[S2central.net]

Minus 20 psi does not exist, there is only 1 Bar in that direction, must be inches of mercury? That would be about -10lbs or 2/3 of a Bar of vacuum.

Yep I think so because -20inHg is about -0.67bar

Paul

[stevieyid]

I didnt buy the gauge it was given to me by a mate who had it in his last car. For whatever reason it does go down around -20 psi . Ill get another gauge measured in bar and see what that reads. Thanks for your help

[newsh]

Honestly mate, -20 psi does not exist. A total vacuum, ie a complete absence of air is about -14.5 psi. it is not possible to go any less, even in space. The unit given to the difference in pressure between deep space and planet Earth (at sea level) is 1 Bar!

My gauge goes from -15 to +30psi (or to put it in Euros -1 Bar to plus 2 Bar) (Or actually zero to 3 Bar absolute)

My car boosts to around 25psi. I don't mind the units, they work for me.. because I have 5 psi left over I can see if the car is overboosting, very useful

[stevieyid]

maybe i read it wrong cause i was trying to drive and read the gauge at the same time. I will have a look in a moment. Do all gauges basically all fit the same way? the reason i ask is if i fit this one in the center vent and then get a new on will it be a straight swap? Anybody reccomend a type of boost gauge? thanks for the help

[newsh]

Check this one, at the bottom you can see that its calibrated in inches of mercury(Hg) to the left of zero and psi to the right.

[stevieyid]

Thats the same as mine. I didnt see the the symbol at the bottom. The gauge is identical and mine sits at 20 to the left. Is this about right? sorry

[newsh]

Yes, 20 on the left is good, but you said it goes off the scale on the right? so does it go to 20 or 30 on the right?

[stevieyid]

Only goes to 20 psi. I think that im running around 1.5bar with my remapp which is just over 20 isnt it? thats why i was thinking about getting myself another gauge

[newsh]

yes you should get one that goes to 30psi really, the one above coes from here, just came up first on Google.

http://www.gaugeshop.co.uk/index.php?cPath=10

Any 2" gauge (52mm) will fit in the same hole.

[stevieyid]

Cheers newsh thanks for all your help. I will have a look about i want one with amber lighting like the original dials. Thanks again

[stevieyid]

Finally got pics of my boost gauge fitted uploaded onto my computer. Thanks to Glen T for the carbon fibre and cutting it to size. What do u lot think?

[volcano rs]

it took you whole day to cut and fit a tee piece in a pipe ?

[stevieyid]

yep

[volcano rs]

i wont be bringing my car to you for a timing belt change then

[stevieyid]

why not?