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post #1 of 9 (permalink) Old 03-27-2016, 03:22 AM Thread Starter
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Head temps on Powervision

Been using my powervision on my bars as gauges for a few rides now. Been using the auto tune basic to dial in Jamies tune from when I ordered it from fuel moto have less than a 1% average change so I have been using the gauge prtion of the powervision to monitor some thing. What are you seeing for your HeadT channel on the powervisions? mine ranges from 300 up to as high as 370 on a very hilly part of interstate on the commute to work (cruise set at about 82). Is this something to be alarmed by, I dont actually notice any more heat with the jackpot 2-1-2 header but i may just be getting used to it.
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post #2 of 9 (permalink) Old 03-27-2016, 08:40 AM
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Originally Posted by shrekmoose View Post
Been using my powervision on my bars as gauges for a few rides now. Been using the auto tune basic to dial in Jamies tune from when I ordered it from fuel moto have less than a 1% average change so I have been using the gauge prtion of the powervision to monitor some thing. What are you seeing for your HeadT channel on the powervisions? mine ranges from 300 up to as high as 370 on a very hilly part of interstate on the commute to work (cruise set at about 82). Is this something to be alarmed by, I dont actually notice any more heat with the jackpot 2-1-2 header but i may just be getting used to it.
It's a Harley and a air cooled engine. Very normal. The only thing you need to pay attention to is oil temp. Even the oil pressure is not that important on a Harley. It's about oil flow not pressure. Ride that bike and turn those gauges off. Nothing to worry about.
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post #3 of 9 (permalink) Old 03-27-2016, 09:07 AM
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You will pull yer hair out doing that , unless you're like me ..

Only thing I wud add to oil temp is voltage ..

All that stuff is affected by your riding style , the air temp outside , the bikes build , your build , and the fact that no two motors , even built the same are gonna run exactly the same ..

Information is a good thing , too much information in most cases isn't necessary .. If ir were a LSR motor , I would wanna know everything .. But it aint .

Ride and enjoy ..

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post #4 of 9 (permalink) Old 03-27-2016, 09:32 PM Thread Starter
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10 4 guys thanks for putting me a little more at ease. Im not really a gauge watcher most of the time, but in the process of setting this up and just playing with the gauge function I noticed the warm temps. Bike runs good and I flog it pretty good most of the time I was just wondering others experiences.
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post #5 of 9 (permalink) Old 03-28-2016, 12:22 PM
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Your cylinder head temps are WAY TO HIGH 300 to 370 is temps that should be reached in stop and go traffic and 370 is totally unacceptable.
Cruising at 80 mph 230 to 260 is the normal cylinder head temp and if it is much higher than that then you have a tune problem.
On my Dakota Digital gauges and on my Power Vision display my cylinder head temps never got over 280 while cruising and it had to be 100 degrees + outside to reach these temps.
Sitting in stop and go traffic 300 to 330 can be seen and if the bike gets over 330 I pull over and shut the bike down and let it cool off.


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post #6 of 9 (permalink) Old 03-28-2016, 12:48 PM
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Your cylinder head temps are WAY TO HIGH 300 to 370 is temps that should be reached in stop and go traffic and 370 is totally unacceptable.
Cruising at 80 mph 230 to 260 is the normal cylinder head temp and if it is much higher than that then you have a tune problem.
On my Dakota Digital gauges and on my Power Vision display my cylinder head temps never got over 280 while cruising and it had to be 100 degrees + outside to reach these temps.
Sitting in stop and go traffic 300 to 330 can be seen and if the bike gets over 330 I pull over and shut the bike down and let it cool off.

The OP didn't tell us what year or model bike he has, so he should know that there are 3 temperature parameters available on the latest PV tuners. Water temp, Engine Temp(Et, originates from the temp sensor on the back of the front head), and is what we are used to seeing in the 230-270* range at highway speed, and then there's a Head Temperature, which is, according to the info I got from FuelMoto, some calculated number that does indeed run in the range the OP is seeing. I don't use it much because it's not the one that I'm used to seeing, but it's much more dynamic than the Et number we are used to seeing.

So, it depends on which parameter you are using, but I can guarantee you, if your Engine Temp number is at 370 you probably won't even be able to sit on the bike.

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post #7 of 9 (permalink) Old 03-29-2016, 10:50 AM Thread Starter
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sorry for the confusion it is a 2015 rgc. and yes the ET band stays in the mid 200s. The only reason Im using the head temp band is that is what is used to pull and add timing based off of engine heat from what i can find. Like i said though bike doesnt seem like it is running super hot, def not uncomfortable at all while on it.
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post #8 of 9 (permalink) Old 04-09-2016, 09:23 PM
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Head temp 400degrees!!

I have a 2015 RGS with Fuel Moto breather, power vision and their tune, header w/out cat, and RCX 4" mufflers with wrapped cores. We were down in the Keys a couple of weeks ago and rode to Miami one day when it was 90 degrees. While in stop and go traffic, I watched my PV Head Temp go up to 400 degrees. I was scared as hell my motor would fry like my leg. The bike never spark knocked or stuttered but was hot as hell. Had nowhere to stop where we were so kept going for over an hour total in this condition. I run Amsoil 20-50 in motor. After the ride I enrichened the tune some and the next day still saw 380 degrees, but no ill effects. How hot is too hot? No-one can say, until your motor grenades. Time to call FM and see what they say. Also looking for cooling fans of some kind for heads and/or oil cooler. That gauge will definitely get your nerves twisted.
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post #9 of 9 (permalink) Old 04-10-2016, 12:44 AM Thread Starter
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was that the HeadT band or the ETemp band. Since the HeadT band seems to be a mathematically derived number I have been using the ETemp band which is the sensor on the head of the rear motor. My temps from this sensor seem to be right inline from what everyone else is saying. I was seeing 221 today with it 55 degrees outside, I was also beating the hell out of it doing some tuning so that seems to be a pretty good number.
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