I am dreaming of a new 911 engine I’m dreaming of a new engine Not like the one I used to know Where the mufflers sputter and children shudder When there’s thunder in the snow I’m dreaming of a new engine With every blogger post I write May your drives be...

SSI heat exchangers are back! For years American owners of classic 911s have worshipped at two stainless steel altars called SSI heat exchangers. They are basically a better-than-original replica of the pre-1974 heat exchangers used by Porsche until 1975. That’s great if you have a US model...

Tuning the 911 CIS engine for cheap horsepower Porsche 911s produced 1973 to 1984 are fed by a Bosch K-Jetronic fuel injection system also known as CIS for Continuous Injection System. It was a huge leap forward compared to the old mechanical injection. And in a...