Hi guys, my first post. Boy this site sure would of helped back in 1999 when I built my "salad bowl" bench.
My current thoughts are to build a sealed cylinder block and pull air out the oil pan &/or exhaust collector using 4" pipe coming off the vacuum and pressure chambers in the bench wit a 2" pitot tube, mainly to test intake & exhaust manifolds.
Any ideas on how big (volume) the oil pan would need to be.
Ideas on where to take the static pressure drop when pulling air out the exhaust without a settling chamber or is the 4" pipe going to be enough to calm the air down.
Thanks Chip