When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Now that I have an FP3 Im able to watch different sensor data and like watching torque, power and temp. This morning I went on a short 100 mile ride which included a quick run through some stop and go traffic. During this time I watched as my engine temps slowly crept up to over 300 degrees (Fahrenheit). Is this normal? Cruising Ill be anywhere between 220 and 250. At one particular stop I got to about 310 and when I took off it felt really rough as if I was in 2nd/3rd gear. The bike otherwise runs perfectly.
I know on a Sportster it is taken at the rear cylinder head. Can't speak for the manly men bikes...
To the OP, using the FP3 my Sportster will show a head temp of 386-388*F in 80*-90*F temps after a run down the Interstate of 10-15 miles at 70 mph. Drops off fairly quick when coming to a stop when I will see 355-358*F head temps. Oil temps under the same conditions will be right at 210*F or so.
My 2013 FLHTK has gotten as hot as 350 degrees in stop and go traffic on a 90 degree plus day. I call it "Baked potato" temperature and the temp at which I begin to look for a way to start moving again, as in riding the shoulder if on a stopped highway, or right turn lane to get the hell out of there if in town.
So here is the way the app is able to measure torque and power. I got this from another thread that a V&H tech posted.
"An engine is just an air pump. If you know how much air is going through the engine, you can figure out how much power it is making. We don't have any air measurement devices on the engine, but we do understand the fuel flow. If we know how much fuel is going through the engine and at what air/fuel ratio, we are almost there. Lastly, we apply a factor representing BSFC (a measure of engine efficiency) and we have horsepower. Once we have horsepower, we can calculate torque. The accuracy of the calculation is very dependent on the VE table being correct. The numbers are approximations, but surprisingly close. Makes it fun to look at."
And I agree it is fun to look at. It's interesting for me since it combines two things I am passionate about together. Tech and motorcycles.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.
Normal Temps
