For those of you 944NA people who are looking for more power, supercharging or turbocharging is a great way to go.  If you do go this route, be cautious and conservative with the amount of boost (and power you are expecting) your engine to handle...

As part of our testing, we turbocharged a stock 1987 NA short-block.  This engine lived on a steady diet of E85 to ensure absolutely no knock.  We wanted to see the actual power limit of the NA internals, not destruction caused by knock.  Our engine lived for ~9 months, being nearly daily driven at 17-18psi of boost, approximately 350rwhp!  But it eventually could not take 2.5 times the factory power, and here is the result:

Be careful  with how much boost you are asking your NA engine to take.  If this engine was limited to 10psi, it would probably have lived for many years.