Can you use the oil temp to estimate the engine temp.?
Dr.Evil, and others,,,
I have found that on my 2006 Carbed sporty... On a very HOT day, the idle temp would come up in Slow moving or just Stopped Too much at lights or in slow traffic... I Also could "feel" the Heat from the exhaust on my leg,,,,,IT usually was a Build-up of heat From being stopped Too long and not really Over-Heated "YET".. Once just to see,,,,I kept an Eye on my oil temp with a Radio shack temp., hand held checker,,,,Very accurate if used properly...
Never found my temps of the oil Over 220* at any time,,,BUT my leg was sure HOT...
I never would allow my bike to Over-Heat Long enough to show up in the oil... That would be like plugging in a deep-fry-pan and allowing it to get up to cooking point...
I found my 06 sporty running Cooler than any big bike I owned.. I bought a JAGG oil cooler for that bike when new and never Needed to install it on the sporty.. I will put it on my 09 FLHR as it DOES need the oil cooler when running in Slow traffic, especially in 3 digit temps..
My sporty has full synthetic Redline 20/50 oil,, IMO,, runs cool enough and would Have to Over-Heat a Very long time to show up in High oil temps... Much too Late by then and probably would damage to the pistons and rings...
Now on my TC motor, The "oil temps" seem to show up really Early-on in the slow and idle modes on my bike. After full stage one and using TFI, I DO FEEL a BIG difference in the temps on that bike.. Just the Sound of the engine NOT going into parade phase and cooler on my leg is the GOOD results.
signed....BUBBIE