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Options for temp dipstick and do I need one

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Old Jan 2, 2023 | 11:42 PM
  #31  
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Originally Posted by RKZen
I posted this earlier in this thread. With current available tech, all of that info can be read from the ECM using apps or other hardware, like PowerVision. This phone app called RPMitUp, along with a bluetooth ODB II reader connected to the bike's data port, can read the ECM and provide info like engine temp, gear indicator, HP, TQ, MPG, DTC codes, besides speed and RPM. All for the price of an analog oil temp gauge.
are you saying there is app I can connect to my 2022 Road Kind Special that allow me to get oil temp info somehow? Could you clarify?
 
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Old Jan 3, 2023 | 07:58 AM
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Originally Posted by Burbur2
are you saying there is app I can connect to my 2022 Road Kind Special that allow me to get oil temp info somehow? Could you clarify?
The Harley ECM measures the engine head temp and not the oil. This allows the ECM to shut down a cylinder if the head temps get too hot. I think this is a bit more meaningful info than the oil temp. Someone can confirm, but Harley discarded the oil sensors when they took out the oil temp/psi gauges, except for the oil level. Yes, there are apps that can read the info provided by the ECM. I provided a link to one as an example.

Remember, these are air cooled engines and reason for all those air fins around the cylinder heads. The primary job of the oil is to lubricate engine components and suspend contaminants. It does some cooling but it also goes through an oil cooler before returning to the crankcase, so the oil temp is a bit lower at that point.

If you still have a need to measure the oil temp, I suggest one of the old school analog gauges. A good one has been posted already. They're reliable and don't have electronics that can go bad from the heat of the engine.
 
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Old Jan 3, 2023 | 08:09 AM
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If you have a power vision or FP3 or probably any other flash tuner you get the same OBD reader without needing to purchase anything else.

You get to see the outputs from the sensors plus other stuff. You should also be able to see computed range with fuel usage.
 
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Old Jan 3, 2023 | 08:21 AM
  #34  
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Originally Posted by Andy from Sandy
If you have a power vision or FP3 or probably any other flash tuner you get the same OBD reader without needing to purchase anything else.

You get to see the outputs from the sensors plus other stuff. You should also be able to see computed range with fuel usage.
I agree those flash tuners does the same. The computed range already exists on the newer bikes.
 
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Old Jan 3, 2023 | 08:30 AM
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Originally Posted by RKZen
The Harley ECM measures the engine head temp and not the oil. This allows the ECM to shut down a cylinder if the head temps get too hot. I think this is a bit more meaningful info than the oil temp. e.
You are probably right. But I would go with whatever is easier. Oil is going to get hotter as heads get hotter. What the time curve is for both, when stopped in traffic, would be interesting to see.
 
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Old Jan 3, 2023 | 08:39 AM
  #36  
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Originally Posted by RKZen
The Harley ECM measures the engine head temp and not the oil. This allows the ECM to shut down a cylinder if the head temps get too hot.
Temperature only from rear cylinder on the Sportster and no shutdown. EITMS I think is only rear cylinder shutdown but only if enabled.

There is something in one of the fuelling tables that suggests something will happen if the temperature goes north of a certain figure but cannot remember now.
 
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Old Jan 3, 2023 | 08:49 AM
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Originally Posted by Andy from Sandy
Temperature only from rear cylinder on the Sportster and no shutdown. EITMS I think is only rear cylinder shutdown but only if enabled.

There is something in one of the fuelling tables that suggests something will happen if the temperature goes north of a certain figure but cannot remember now.
I agree on both. Maybe the seat automatically ejects if that temp is reached.
 
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Old Jan 3, 2023 | 09:12 AM
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Originally Posted by RKZen
The Harley ECM measures the engine head temp and not the oil. This allows the ECM to shut down a cylinder if the head temps get too hot. I think this is a bit more meaningful info than the oil temp. Someone can confirm, but Harley discarded the oil sensors when they took out the oil temp/psi gauges, except for the oil level. Yes, there are apps that can read the info provided by the ECM. I provided a link to one as an example.

Remember, these are air cooled engines and reason for all those air fins around the cylinder heads. The primary job of the oil is to lubricate engine components and suspend contaminants. It does some cooling but it also goes through an oil cooler before returning to the crankcase, so the oil temp is a bit lower at that point.

If you still have a need to measure the oil temp, I suggest one of the old school analog gauges. A good one has been posted already. They're reliable and don't have electronics that can go bad from the heat of the engine.
So how I can link my bike ECM with RPMitUp to see all this data? I connect bluetooth ODB II reader and then link to the app I assume. Can I ride with bluetooth ODB II reader connected all the time? Sorry I never heard about this app or such option so this is completely new to me. My bike is completely stock.
 

Last edited by Burbur2; Jan 3, 2023 at 09:18 AM.
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Old Jan 3, 2023 | 09:21 AM
  #39  
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Directly from the link you supplied

RPMitUp requires a compatible WIFI OBD / OBDII Wireless scanner along with a 16 to 4 pin ELM327 cable for the following models:
2001 - 2010 Softail
2001 - 2011 Dyna
2001 - 2013 Touring
2001 - 2013 Sportster
2002 - Present V-ROD

or a WIFI OBD / OBDII Wireless scanner along with a 16 to 6 pin CANBUS cable for the following models:
2011 - Present Softail
2012 - Present Dyna
2014 - Present Touring
2014 - Present Sportster
2014 - Present Street 500/750

This is he CAN bus to OBD2 cable https://www.ebay.co.uk/itm/154914481824. Just needs the WiFi reader to plug it into.
 

Last edited by Andy from Sandy; Jan 3, 2023 at 09:28 AM.
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Old Jan 3, 2023 | 09:27 AM
  #40  
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Thanks for all the info, this is really cool option https://www.rideapart.com/reviews/25...davidsons/amp/ technology these days is truly amazing.
 
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