General Topics/Tech TipsDiscussion on break in periods, rider comfort, seats and pad suggestions. Tech tips as they become available will be posted here.
.....Update 3/29: A traffic jam today, feathering in first for miles. I have my PV set to turn red when it hits 420. I would have definitely hit that temp and more without the cooling fan but highest temp I hit with the fan was 385...very cool![/QUOTE]
Great photos, may I post 1 or 2 on the web site? If OK could you please forward to steve@love-jugs.com. Thanks
.....Update 3/29: A traffic jam today, feathering in first for miles. I have my PV set to turn red when it hits 420. I would have definitely hit that temp and more without the cooling fan but highest temp I hit with the fan was 385...very cool!
Great photos, may I post 1 or 2 on the web site? If OK could you please forward to steve@love-jugs.com. Thanks
I know Steve got most of his orders out last week and close to getting back his 24-48 hour shipment.....so lets see some of those Love Jugs Might Mite Cooling Fan installs and pics!!
Hey Steve, lets make a deal on two mighty mites. Dyna and sportster.
You can order on the phone, 561-499-0974 or though the web site. At $299 each to rake in all the benefits of comfort and less repairs, you should be asking me to charge more. Remember, with 2 MMs you are getting twice the benefits.
Works great. Where I normally hit 410+ in stop and go traffic, today it stayed between 360-380....this is my normal cruising temp when there is no traffic. The fan was surprisingly very light but provided high-velosity air flow. Can't hear the fan while the engine is running so difficult to tell whether its on or off.
Update 3/28: This morning to work, I normally run 360-380 in light traffic....with the fan, was running 330-350/360
Update 3/29: A traffic jam today, feathering in first for miles. I have my PV set to turn red when it hits 420. I would have definitely hit that temp and more without the cooling fan but highest temp I hit with the fan was 385...very cool!
FOUR HUNDRED DEGREES? Is that right? Jesus, I was worried when I hit 300 on my 110. I got to think at 400 degrees oil isn't doing much. I hope to hell you are running synthetic with those numbers?
400 degrees is actually in the normal acceptable HD running range. There is another thread or two that talks about this.
In summer with upper 80F to 90F temps the 1200 will run 380 to upper 390s most often. Oil temperature will be much lower at around 200 to maybe 220F. On cooler days or constant cruising with good air flow the temps I;ve seen were 10F to 20F lower. As soon as you stop, temps build.
FOUR HUNDRED DEGREES? Is that right? Jesus, I was worried when I hit 300 on my 110. I got to think at 400 degrees oil isn't doing much. I hope to hell you are running synthetic with those numbers?
Here is how Kevin at DK Customs explained it...
The Sportster is the most "honest" engine HD is currently making. The sensor is reading at the top of the rear cylinder. It is not even warmed up until 280*, and normal operating temps range between 350-420 off that sensor (which the PV displays as ET).
On Twin Cams the sensor is near the intake valve of the front cylinder. It is warmed up around 170*, and normal operating temps range between 210-230. (however, the Twin Cams have a real heat issue, and it is not unusual to see them higher than 300...while this is normal, it is NOT good).
Even at 230*, the Twin Cam is running Hotter than the Sportster at 400*. How? The temp on the front cylinder (front cylinders are always cooler) near the intake valve (which is the coolest part of the head) is an artificially low number. Taking the temp on the rear cylinder, right above the combustion chamber, gives a much more informed reading of the engine temp. Since there is no sensor on the Twin Cam at the center top of the rear cylinder (and no way to shoot a infrared in there), I don't know how hot that is getting, but it's a pretty safe bet it is MORE than 400*.
Here are some min/max temp ranges for different types of bikes....
Just received an email from Steve relaying a message from Dave the engineer. When Dave saw my pic on their website, he recommended I remove the headbolt covers (the covers around the spark plugs)....he said it reduces the cooling ability "substantially". So I removed the covers tonight and will be painting the bare area with high temp engine paint tomorrow so I can get more benefit from the fan.....probably will now reduce engine temps by 100 degrees without the covers.
That's very interesting info on reported motor temps. Appreciate it. Makes me glad I run red line synthetic. Gives me (maybe real, maybe imaginary) piece of mind.
03-30-2017, 12:24 AM
