Category : Old Rx7 : Engine : Intercooler + Turbo

Intercooler: I replaced the stock intercooler with an RS akimoto core. I had to fabricate the intake duct and piping. I cut up the stock intake duct to use has a model. The piping was made from 3 in mandarin bent aluminum. I also added a greddy intake elbow so I could later add extra injectors. For safety I added an HKS pop off valve. The valve is set to open at 16 psi and help eliminate boost spike during turbo transitions. They only cost 50 dollars and are a little extra insurance in case something goes wrong. Because of the size of the air box and I/C core I had to buy a smaller battery so everything would fit under the hood.

Turbo: I stay with the stock sequential turbos that came on the car. Boost was regulated at 11 psi low setting, 13 psi medium setting, 15 psi high setting
The turbos had 45 k on them at the time of the accident and had worked flawlessly.