MK5 Golf GTI
All Things Mk5 => How to Guides / Troubleshooting => Topic started by: SteveS on April 14, 2009, 09:31:08 am
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when it comes to boost gauge, PSI or BAR, is PSI english, bar american? duno what to go for
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PSI, :happy2:
mine runs 21-22psi wich is about 1.4/1.5 BAR :smiley:
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lol, i knew ud say that...
i just dont know in UK what people state. psi is more accurate.. but if in uk we use bar then i want bar... LOL
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My last car came from the factory with a boost gauge installed and that was in Bar
i would prefer PSI though (as i do when doing tyres)
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when it comes to boost gauge, PSI or BAR, is PSI english, bar american? duno what to go for
I would say go with PSI.. but at the end of the day go with whatever you want :happy2:
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thats it, i duno, if we talk psi here then great, if its bar then id want a bar gauge.. :rolleye:
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Utimately the benefit of the boost gauge is going to be the way the needle swings...
Any peak values you can remember and convert at home if thats an issue. :wink:
bar is european std but in all honesty I prefer psi
either way its gonna be useful :happy2:
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i guess as psi is more accurate its better without a doubt
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once you have a gauge then you will understand that you dont even need the numbers on it as you will notice where it peaks and if its any different then you will know you have a problem :smiley:
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true, but nice to say i have more than you :p
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true, but nice to say i have more than you :p
:grin: :grin: braggin rights n all that!
what does the ed30 run as std psi? the gti runs 9psi i think?
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i have no idea :rolleye: :grin:
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12 psi peak , 10 psi hold std
22 psi peak , 17 psi hold APR stg1 :happy2:
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12 psi peak , 10 psi hold std
22 psi peak , 17 psi hold APR stg1 :happy2:
thats roughly the same with the KO3 then
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er, surely it shouldnt be? :-|
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id have thought the KO3 would be more that the ED30 but looks exactly the same,
ps ive just had confirmation that the KO3 runs at 12psi std :happy2:
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shouldnt the ko4 be more?
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i dont think so because its bigger, im sure john_o will be back soon :laugh:
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values from the research Ive done are fine :happy2:
Obviously depends on the map you have too. Be interesting to see what you get.
Youll be surprised how much in varies in different temps and conditions and petrol type (and for REVO Im assuming boost number)
Dont go chasing big peak psi numbers that aint the game :grin:
(Also the vacuum side indicates how healthy your engine etc is)
Just buy it Steve :signLOL:
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oh i am :)
i didnt bring up the what psi should it be" question :p
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blaming Joe , I like your style Steve :signLOL:
Always good to know these things for the sad intellectual types on this forum like me :evilgrin:
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:signLOL:
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Carl at revo thinks around: 1.3 - 1.4 bar = 20.3052833 PSI :signLOL:
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Carl at revo thinks around: 1.3 - 1.4 bar = 20.3052833 PSI :signLOL:
:signLOL:
that sounds about right :happy2:
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thats on a revo ed30 obv...
well when i eventually get mine fitted ill let you know! LOL, assuming there isnt an issue :fighting:
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PSI - imperial
Bar - SI units
1 bar = approx 10m head of water. So if you are 10m underwater you are subjected to 1 bar atmospheric pressure (approx - varies with the weather) and 1 bar hydrostatic. :rolleye:
Bar FTW
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Carl at revo thinks around: 1.3 - 1.4 bar = 20.3052833 PSI :signLOL:
I was f**cking miles out then ......... :P
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The K03 and K04 will peek at roughly the same PSI - 20+ depending on map, conditions etc.
The difference between the K03 and K04 is that the K04 has a bigger turbine.
This means the K04 will spool a little slower (by slower read further down the rev range), therefore peak boost should be made a little earlier with the K03. Also due to the larger turbine the K04 will be able to hold its boost for longer through the rev range. So you should expect the K03 to be boosting at around 10 PSI at 6k rpm while the K04 will still be boosting around 17 PSI at 6k rpm.
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I imagine the critical thing about the bigger turbo is that it will shift a bigger VOLUME of air than the K03....
If I chucked a bucket of water over you from the top of a building it would hit you at a certain pressure. If I tipped a tanker of water on you from the same building the water would hit you with the same pressure. But you would be a lot wetter the second time round.....
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We are not in the USA, so we should be using Bars. To those who are saying that the Bar is less "accurate" (you really mean precise, as accuracy is dependent on the gauge you are using), bar is far more precise than PSI is, as it can be broken down into centibars, millibars, etc. What do you break a pound per square inch into? Ounce per 3/8 inch?
As ub7rm says, Bar ftw. PSI is a relic of an outmoded and inefficent measurement system.