How much boost is this?

[No Quarter]

I'm seeing 307Kpa at about 4300rpm. My boost gauges is only showing me 10psi - but this can't be right.

Any ideas? What the hell is Kpa and is there anywhere I can find a cross referance chart for Bar equating to boost?

 

[TurboDANDEE]

thats about 30.04 psi. 100 kpa is the threshold between vacuum and boost, 200 kpa ~ 14.5 psi and 300 kpa ~ 30 psi. i think you might have the wrong map sensor, it might be a 1 bar and not a 3 bar, thats why its reading so high.

 

[No Quarter]

Would'nt a 1 bar sensor just peg out at like 107? Or something similar? How do I check the map sensor - its what came with the set up.

 

[bobc455]

Originally posted by No Quarter
What the hell is Kpa and is there anywhere I can find a cross referance chart for Bar equating to boost?

Calm down there sailor. Have a look at this thread- http://www.turbobuick.com/forums/showthread.php?s=&threadid=56137

kPa is kiloPascals- an absolute measurement of pressure. 1 atmosphere = 14.7 PSI = 100 kiloPascals.

-Bob Cunningham

 

[Otto J]

you can also go to your dashboard settings and add boost to it, so you can see and record boost in PSI.
Otto

 

[TurboDANDEE]

Originally posted by No Quarter
Would'nt a 1 bar sensor just peg out at like 107? Or something similar? How do I check the map sensor - its what came with the set up.

Well if u set your ecu to read a 3 bar, your fuel map will read around 300 kpa. but say if u have a 1 bar map sensor and u set ur ecu to read 3 bar, ur readings will be off. try setting it to 1 bar and see if your boost gauge matches your ecu reading.