My calculator says 0.69 psi for 1.5 vols at 38 fahrenheit.
Have to say that it should be served at around 54 fahrenheit and if carbing at that temp for 1.5 vols its 6.25 psi.
If you were going to carb cold and then warm up remember to adjust your regulator when you get it warmer.
Big but here very low readings and adjustments on a regulator are difficult and you might need to use an inline regulator on a different scale or check very closely with a separate gauge to cross check your regulator reading.
I use this calculator Beer Carbonation Calculator
Note if you went to 1.2 vols which wouldn't be unreasonable either you'd be overcarbed at 38 F.
Further some places serve this on draught with nitro so you could try a stout tap and see what difference it made to your beer.
Great thanks for the info I was looking at a chart and must've misread. My regulator does 2 PSI increments so I'll probably carb between 6 and 8 psi at 54°. I want to try and keep with the style on this one so I appreciate you pointing the temp out.
I usually run between 8 and 10 psi on most other beers like reds and IPAs at 38°.
I have about 8' of 3/16" beer line. Should the 6 to 8 psi range be fine for being able to dispense the beer? I'm a novice in the draft department.
Thanks for the help.