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Turbocharger Installation Guide


  1. Bolt the turbine casing solidly to the exhaust manifold. The connection from the compressor casing to the air intake piping should be flexible.
  2. The oil inlet piping should be short to minimize oil lag on startup and should be the following size,
    1. CT3B Ball Bearing should use -3 Oil line. (Restrictor must be used if oil pressure exceeds 50 psi)
    2. CT360 Sleeve bearing should use -4 Oil line. (No Restrictor)
  3. The oil drain should be short, slope downward over its entire length and have at least a ¾" inside diameter. Horizontal runs should be avoided.
  4. The turbocharger must be supplied with filtered engine oil at between 35 and 50 psi pressure (CT3B Only) when the oil is up to temperature. Excessively high oil inlet pressure can cause oil leakage and smoke in the engine exhaust.
  5. Air cleaner pressure drop should be no greater that 15" H2O and muffler restriction no greater than 1.5" Hg. If no air cleaner is used, a screen should be placed over the compressor casing air inlet to prevent entry of foreign material that can damage the compressor wheel.
  6. All connections and flanged joints should be checked for leakage when the engine is running and engine oil and water are warm.

Oil Feed, Drain, and Water Port sizes

    CT2, CT3, CT4, and CT43
  • Oil feed inlet size - 1/8" NPT (Ball Bearing) 1/4" NPT (360 Series)
  • Oil drain outlet size - 1/2" NPT
  • Water Port size - 3/8" NPT
    CT5 and CT6
  • Oil feed inlet size- 1/8" NPT
  • Oil drain outlet size- 3/4" NPT

Recommended Feed Line

CT2, CT3, CT4, and CT43
    - 3 feed line
  • Ball bearing with high oil pressure
    - 4 feed line
  • Ball bearing with low oil pressure
  • Standard bearing
CT 5 & CT6
    - 4 feed line

Turbocharger Installation Guide(Oil-Less Model)

  1. Bolt the turbine casing solidly to the exhaust manifold. The connection from the compressor casing to the air intake piping should be flexible.
  2. Since this turbocharger does not require lube oil from the engine, it can be mounted in a variety of positions, including vertical.
  3. This turbocharger contains a water jacket in its bearing housing and must be supplied with cooling fluid from the engine cooling system.
  4. Air cleaner pressure drop should be no greater than 15" H2O and muffler restriction no greater than 1.5" Hg. If no air cleaner is used, a screen should be placed over the compressor casing air inlet to prevent entry of foreign material that can damage the compressor wheel.
  5. All connections and flanged joints should be checked for leakage when the engine is running and the cooling fluid is warm.

Water Port sizes

CT2, CT3, CT4, CT43 and CT5Z
    Water Port size - 3/8" NPT

Recommended Water Line

CT2, CT3, CT4, CT43 and CT5Z
    - 6 Water line