Engine temp question
#1
Engine temp question
I seem to consistently see 230-240* oil temps when cruising 70 mph or so on these hot days. I had never used the FP3 to monitor stuff before and thought I'd see what the engine temps were under these conditions. While the bikes run flawlessly, and the plugs look good, I wanted find out if a possible lean condition was causing the oil temps I'm seeing.
Today the temp is 90* or so, HIGH humidity and sunny. After about 10 miles at a steady 70 mph, some slower speeds, and another 15 miles or so at 70 mph the FP3 never showed a temp higher the 385*. I assume this is being taken at the rear cylinder head? Is a temp of 385* an acceptable engine temp under these conditions? If so, an oil cooler may be in my future...
Today the temp is 90* or so, HIGH humidity and sunny. After about 10 miles at a steady 70 mph, some slower speeds, and another 15 miles or so at 70 mph the FP3 never showed a temp higher the 385*. I assume this is being taken at the rear cylinder head? Is a temp of 385* an acceptable engine temp under these conditions? If so, an oil cooler may be in my future...
#3
I'm no expert on the matter but, from what little I've read most problems with the FP3 seem to come with running the Autotune feature. Since my bike runs so well, I have no desire to run the Autotune. I'm leaving well enough alone. Although I still think I will try and get the oil temps down.
Appreciate the feedback!
Last edited by firehawk6; 06-16-2018 at 03:17 PM.
#5
My main concern is/was, if the engine temps were extreme I could be looking at a lean condition causing the oil temps to be that high. It appears 385* are not abnormal engine temps in those conditions, so I will address the oil temps with an oil cooler. I'd like the oil temps to be in the 200-210* range
#6
#9
firehawk6 you have nothing to worry about. My 1200 with the same FP3 tune is running the same temps (both rear head temp and oil temp) under the same conditions. And it's running great I might add. I noticed these temps last spring / summer and thought I might need to get a oil cooler or maybe some love jugs to cool things down. Then the more I read the more I found out that my engine was right where it is supposed to be under those conditions. They say the evo is damn near a bulletproof motor and I have to agree.
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firehawk6 (06-16-2018)
#10
firehawk6 you have nothing to worry about. My 1200 with the same FP3 tune is running the same temps (both rear head temp and oil temp) under the same conditions. And it's running great I might add. I noticed these temps last spring / summer and thought I might need to get a oil cooler or maybe some love jugs to cool things down. Then the more I read the more I found out that my engine was right where it is supposed to be under those conditions. They say the evo is damn near a bulletproof motor and I have to agree.
Still considering putting together an oil cooler kit. I want to go with a Jaggs oil filter adapter, and an HD cooler. I'm wanting to stick with the HD cooler because I want to use the cover they sell so it won't just look like a black radiator hanging off the frame tube. At this point it seems I'm ok so the cooler might end up being a winter project.
Appreciate your input!
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Grey_Beard (06-16-2018)