It has been my experience that the
oil coolers installed on most replica's do not allow the engine
oil temps to reach optimum operating temperature. Even on a hot day, prior to installing the
oil temp thermostat the oil temps would seldom go above 60 degrees Celsius. Unless you are consistently running at high RPM's such as on a race track, the oil temp just does not get to where it should be. Blocking off the oil cooler just looks goofy IMHO and is nowhere near as effective as doing it the right way. This simple thermostat sandwich adapter is easy to install and works as advertised.