By hans14914 - Thu Oct 12, 2023 12:28 pm
- Thu Oct 12, 2023 12:28 pm
#238415
Like many of you, I have run into the issue on cam cover fitting availability and options. To solve this for myself, I have started building up a portfolio of different fittings for my various builds. This collection of fittings is machined from 6061 and anodized in satin clear. A small amount of the blanking plugs were anodized bright black if you wanted to replace an OEM plastic part with one that will seal better but look similar to stock.
All the breather fittings have been designed with the largest possible bore as the pass through the valve cover to reduce velocity, there are no internal restrictions.
All fittings can be clocked in either the up or down direction, so there is no handedness. Sealing is improved by adding an extra face seal between the valve cover and the baffle nut.
The baffle nuts are threaded to allow a gentle amount of preload to be exerted by this face seal. The nut is then retained with a circlip. Tension is maintained by installing shims between the nut and the circlip (two 0.51mm stainless shims included to make sure the nut stays snug on almost any cam cover).
The baffle nut has more open cross-sectional area than the port itself, but adequately shrouds the inlet and resists any vacuum scavenging through multiple openings.
The lower deflector plate is made of stainless steel, and also retained by a circlip. This baffle plate is solid on the elbow fittings, but both a solid and perforated deflector plate is included with the 8ORB strait fitting to promote drainage if it is used as an occasional fill port (either can be installed during assembly). These deflector plates are also not required, installation is optional, and additional scrubber material could be installed in the baffle nut if desired.
All fittings are currently available, but I am retaining the first batch of 10AN fittings for my existing projects. Another batch is being ordered this month, so please let me know if you want any of that style, and I will increase that replenishment order.
All the breather fittings have been designed with the largest possible bore as the pass through the valve cover to reduce velocity, there are no internal restrictions.
All fittings can be clocked in either the up or down direction, so there is no handedness. Sealing is improved by adding an extra face seal between the valve cover and the baffle nut.
The baffle nuts are threaded to allow a gentle amount of preload to be exerted by this face seal. The nut is then retained with a circlip. Tension is maintained by installing shims between the nut and the circlip (two 0.51mm stainless shims included to make sure the nut stays snug on almost any cam cover).
The baffle nut has more open cross-sectional area than the port itself, but adequately shrouds the inlet and resists any vacuum scavenging through multiple openings.
The lower deflector plate is made of stainless steel, and also retained by a circlip. This baffle plate is solid on the elbow fittings, but both a solid and perforated deflector plate is included with the 8ORB strait fitting to promote drainage if it is used as an occasional fill port (either can be installed during assembly). These deflector plates are also not required, installation is optional, and additional scrubber material could be installed in the baffle nut if desired.
All fittings are currently available, but I am retaining the first batch of 10AN fittings for my existing projects. Another batch is being ordered this month, so please let me know if you want any of that style, and I will increase that replenishment order.
Last edited by hans14914 on Sat Oct 14, 2023 2:17 pm, edited 2 times in total.