Air cleaner

Skyline R33 GT-R Making of Air Cleaner Heat Shield

The bare type air cleaner has the problem of sucking hot air. I thought that I wouldn’t mind if I was running with a duct for guiding the wind. However, looking at the ECU data and logs, it was found that even during high-speed cruising, air with an outside temperature of + 20 to 25 ° C was inhaled. In the intake air temperature correction, when the temperature rises by 20 ° C, the fuel is thinned by about 4%, so it cannot be overlooked because the loss is -4 horsepower at 100 horsepower and -24 horsepower at 600 horsepower. When I investigated why breathing hot air, the wind that hit the engine was heated by the fan and diverted to the side, hitting the air cleaner directly. As a countermeasure, we will make a heat shield. Mold with thick paper. I had a sheet metal shop in my neighborhood make it. Aluminum, which is easy to process, is good for DIY, but since it can be cut by a machine, I asked him to make it with a stainless steel plate. I made some adjustments and did some processing myself, but stainless steel is hard to scrape anyway! Aluminum […]