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NLHT637
08-30-2007, 08:35 AM
I have the greedy profec ebc specII. My peak boost is displaying 1.54x100kpa which =15.4psi. Meanwhile my vdo boost gauge shows 22psi peak. I though that was strange so got an autometed gauge and its the same results. Any idea what's going on and which is showing more acurate? Vdo or profec ebc?

AudiRacerS4
08-30-2007, 09:00 AM
id have to say the mechanical guage since you tried two of them and they both say the same thing

akielb
08-30-2007, 09:04 AM
do you have both hooked up at the same time? - are they hooked right next to each other? could it be that the mechanical one is killing the profec reading?

mike-2ptzero
08-30-2007, 09:07 AM
I have the greedy profec ebc specII. My peak boost is displaying 1.54x100kpa which =15.4psi. Meanwhile my vdo boost gauge shows 22psi peak. I though that was strange so got an autometed gauge and its the same results. Any idea what's going on and which is showing more acurate? Vdo or profec ebc?

Are you sure that the greedy isn't reading 1.54 bar? Because 1.54 bar is 22.33 psi. Even my HKS EBC reads in bar and most EBC's read boost in BAR not in KPA.

NLHT637
08-30-2007, 01:04 PM
Mike,
could you tell me what your duty cycle is set at? what would I need to do to get it to boost 24psi Hi and 15psi Lo? Thanks.

mike-2ptzero
08-30-2007, 03:16 PM
Mike,
could you tell me what your duty cycle is set at? what would I need to do to get it to boost 24psi Hi and 15psi Lo? Thanks.

Mine doesn't have a duty cycle setting, I just dial in the boost I want for high and low. If it is off a little there is a % adjustement that I can use, this is on my HKS EVC4.

NLHT637
08-30-2007, 03:17 PM
oic, well thanks, guess i will play with it. I think your right, the ebc is measuring bar and not psi

mike-2ptzero
08-30-2007, 03:31 PM
oic, well thanks, guess i will play with it. I think your right, the ebc is measuring bar and not psi

My guess too. It most likely reads in either kpa or psi but in BAR readings.

AudiRacerS4
08-30-2007, 04:00 PM
my buddy has the gredy profec b in his evo and it reads in BAR, i think you may be reading it wrong

NLHT637
08-30-2007, 04:04 PM
thanks for the input. I think it is bar after all. So i am right on par.