I'd like to thank ZZPerformance for the great idea on modifying thermostats.
It was simple to drill 4 - 1/16" holes around the perimeter of the thermostat opening.
The effect is to increase the flow slightly for slightly cooler temps but more importantly to keep the water jackets cooler before the heat makes its way up to the thermostat and starts the flow moving. I recommend reading their article.
When I tried it with my 180 degree Hypertech, it dropped the running temp to 170 degrees F. A good middle ground between 160 and 180.
It only increases the warm up time by a few minutes and actually runs a little cooler than 170 until you start to load up the engine with that lead foot.
Sure it will change once the weather warms up a little. Thankfully where I live we don't have to worry about freezing temperatures and chilly rides.
The supercharger temperature dropped by 10 - 20 degrees as well. A real bonus for that cooler charge of air.
Now I've got to work on wrapping that 500 F front exhaust header.
A ceramic coated ported version sure would be welcome.....Hector.