Space Velocity Rate

Space Velocity Rate

Both sets of converters were designed for aftermarket certifications using the Ford F250 6.2L truck and 11,000 lbs GVWR. All substrates were washcoated with equal washcoat density and the same precious metal loading.

  • Back pressure of the ceramic substrates (in a converter) is twice the back pressure of the metal substrate at 100,000/hr space velocity.
  • The metal substrate has 27% more substrate volume than the ceramic substrate.
  • The diameters are 4.67” for the metal and 3.67” for the ceramic substrates.

Metal substrate 4.67” dia x 3.94” long, 250 HB pattern, 67.48 in3 volume
Ceramic substrate 3.67” dia. X 5.0” long, 400/6.5, 52.58 in3 volume