TPC Racing built motor low compression big bore 3.7 liter Porsche Cayman turbo hits 462 wheel horsepowerTPC has had some impressive turbo kits out for the Boxster and Cayman but they have now started doing lower compression forged internal turbo motor builds as well. The motor started as a 3.4 liter which was sleeved then bored to accommodate 10.0:1 compression forged pistons. With the new pistons (100 mm bore vs. standard 97 mm) displacement is 3.7 liters and horsepower gained from the baseline is just under 200 at the wheels. With boost raised some more getting into the 500 whp range seems possible.
This article was originally published in forum thread: TPC Racing built motor low compression big bore 3.7 liter Porsche Cayman turbo hits 462 wheel horsepower started by Sticky View original post