EOT meter for OEM oil cooler

[dsinned_imp]

Okay, so today I rode my bike with the 5.2" Spal fan and repeated the same test route and under very similar atmospheric conditions as before. Almost a continuous up hill road in 2nd gear, averaging about 25 mph, with OAT in the mid 70s under fairly breezy wind conditions. There is about a 2000 ft change in elevation over ~5 miles on this road. It is a good way to test and evaluate the effectiveness of an EOC fan.

At the end of the up hill road, the peak EOC temp reached was 197F.

This is a net reduction of -28F compared to no fan, and -13F compared to the previous (smaller and less powerful) fan.

Just before this latest "on the road" fan test, I had to ride in stop and go traffic for about 10 miles to an appointment. This is when the fan really came in handy. Turning On the fan occasionally during this time kept my EOC temp within the range of 165 to 185F. If I didn't have the fan, I believe the temp would have gone up much higher, because there is little air flow thru the EOC under stop and go riding conditions. For just such occasions, it is clearly beneficial to have an auxiliary EOC fan at the flick of a switch!