#41
The next stage of the build was to finalise the inlet design. As I alluded to in a previous post I had an idea, after looking at how much room there was for the radiator, of how I might locate the inlet ducting and filter.
I have seen many ways of locating and routing air inlet ducts on here, but none have really stood out as being optimal or that efficient. Some even having a negative effect on performance.
I decided upon trying to achieve a ram-air style ducting. Which i wanted to feed from the upper LH grille on the bumper. To enable this modification I had to looking into adjusting the rad mounting position, which actually tied in nicely with what I had in mind for the cooling.
First thing was to fit the carbon BMC CDA air filter to the silicone 90deg hose from ASH
I then sourced an inlet duct from
Revotec to match the bumper grille size. The duct is a 255mm x 80mm - ID255-80
I then fitted some black Neoprene flexible ducting to attach the duct to the filter.
I started to mock up the routing and check that everything fit as I had envisioned.
All looking good so far!!
I then started to mock up a mount plate, that was to be bolted to the bumper beam, to hold the duct in place.
I took all the measurements away and designed a plate on CAD and printed out a paper template to ensure all the measurements were correct before making the proper aluminium version.
Everything looked ok so I printed another template and made the aluminium version. I had no swaging tools at work so decided to leave them out for this design, and if needed in the future i'd add them in.
The duct and plate all bolted up and secure to the bumper beam.
All I needed now was to secure the air filter to the engine. I made a small stainless steel bracket to bolt to the thermostat housing, which I then attached to the filter using a large jubilee clip covered with heat shrink.
I also sprayed up the fuel rail guard to match the inlet plenum and bolted that to the engine.
With that attached, that was the fuel system and inlet system complete