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Engine temp.

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Old Jan 20, 2020 | 06:59 AM
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Default Engine temp.

This if for you riders that hove the power commander vision and use the gauge set up i did a 230 mile ride around cave creek and buckeye sunday and my oil temp was 250 (gauge on the dip stick) and the vision read engine temp at 365. what temps are every one else getting? stage one set up on a 2012 xl1200c outside temp was cool low to mid 70's average speed 85 mph on 303 and i-10
 
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Old Jan 20, 2020 | 09:22 AM
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Oil temp on my '12 XL1200C is usually in the low 200s. Engine temp on my '17 Fatboy was usually around 280 cruising and 300+ in stop and go traffic.
 
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Old Jan 20, 2020 | 05:02 PM
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In hot weather 90*-90*+ I was seeing oil temps (analog dipstick) right at 250* at Interstate speeds. Installed a Jaggs oil cooler and now I'm lucky to see anything over 220*, normally right around 210*.

Before running an AutoTune with the FP3 I was seeing head temps at Interstate speeds around 380* or so. After the AutoTune they've dropped to around 350*-360* at Interstate speeds.

Never have been able to find out or a straight answer as to what is considered a 'normal' head temp.
 
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Old Jan 20, 2020 | 05:32 PM
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Originally Posted by firehawk6
In hot weather 90*-90*+ I was seeing oil temps (analog dipstick) right at 250* at Interstate speeds. Installed a Jaggs oil cooler and now I'm lucky to see anything over 220*, normally right around 210*.

Before running an AutoTune with the FP3 I was seeing head temps at Interstate speeds around 380* or so. After the AutoTune they've dropped to around 350*-360* at Interstate speeds.

Never have been able to find out or a straight answer as to what is considered a 'normal' head temp.
thats the type of info i was looking for
 
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Old Jan 20, 2020 | 06:31 PM
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Harley doesn't really give a normal head temp. There's a lot of variables that affect it. I would think anywhere between 300-400°F is fine. Much above 400° I'd start looking at how lean the AFR is.
i haven't seen much above 330-340°F with an infrared next to the spark plugs.
 

Last edited by 60Gunner; Jan 20, 2020 at 06:33 PM.
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Old Jan 20, 2020 | 06:47 PM
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Originally Posted by 60Gunner
Harley doesn't really give a normal head temp. There's a lot of variables that affect it. I would think anywhere between 300-400°F is fine. Much above 400° I'd start looking at how lean the AFR is.
i haven't seen much above 330-340°F with an infrared next to the spark plugs.
If my memory is correct, I believe I was seeing AFR around 14.2-14.3 at 60 mph before I ran the Autotune. Afterwards, I am seeing 13.6-13.8ish at that speed, and noticed head temps had dropped. Again, that's from memory...

I keep telling myself I need to buy an infrared thermometer.
 
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Old Jan 20, 2020 | 07:00 PM
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Damn, I borrowed an IR thermometer the other day from our high school auto shop to check the temps on my new headlight. Didn't think about checking the engine head temps. I'll try to remember to borrow it again and check head temps. Too cold to ride the next couple days.

John
 
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Old Jan 21, 2020 | 02:44 AM
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My 2013 HD Service manual shows the "normal" oil temp of 230 F
(it is listed in the section on testing oil pressure)

On the 2007 to 2013 Sportsters the ECM does not start to calculate Adaptive Fuel Factor (Long term fuel trim) Until an ET of 356 F, it stops at 414 F.

The ECM does not start pulling ignition advance until 394 F (and then only at MAP values over 70 KPa (around 20-25% and higher throttle position on a stock 1200)
It does not pull ignition timing at MAP values over 50 KPa until a temp of 428 F.
It does not pull ignition timing at MAP values over 40 KPa until a temp of 509 F.

Over last summer I had a MAX Engine Temp of 385 F.

The EITMS (Extended Idle Temperature Management System) Mode 1 does not add idle (rpm under 1200 rpms) enrichment the until 464 F.
 
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Old Jan 21, 2020 | 03:15 AM
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and noticed head temps had dropped.
A richer mixture helps cool the crown of the piston and however you want to state burns cooler, is less explosive, burns slower.
 
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Old Jan 21, 2020 | 08:17 AM
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Originally Posted by Andy from Sandy
A richer mixture helps cool the crown of the piston and however you want to state burns cooler, is less explosive, burns slower.
auto tune adjust that on the go i am trying to find out what others have seen their engine temps go to using the power vision as gauges mine is set up to tell me rpm engine temp and volts the little 1200 is set up with se sage one intake se street performance slip on and a power vision with an learned map.
 
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