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Cooling a Milwaukee 8 RoadGlide

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Old May 27, 2021 | 03:48 PM
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Default Cooling a Milwaukee 8 RoadGlide

Setup:
2020 RoadGlide Special, 114 ci., Dynojet PC-V with DJ EFI Map for Stage-1, Rinehart Slimline Duals, Rinehart 4" Muffs, Rinehart/Arlen Ness High Flow intake.
Winter of 2020, I added lower fairings. Helps keep my legs warm & dry. Chaps were okay but fairings are great. Most riding is mountains and highway but occasionally gotta pass through town for a beer. Stop lights and traffic are my enemy.
Issue:
Now that it's summer in Virginia, temps can reach upper 90s and I can tell my oil/engine is heating up (300+ deg) and loosing viscosity. Can hear the metal talking and my inner thighs are burning.
Solutions:
Remove my lower fairings to allow more airflow. Would rather not do this.
Get the bike on a Dyno for a better tune? Definately!
Add cooling deflector wings from DK - https://www.dkcustomproducts.com/ult...-reduction.htm (usually requires a tank lift, yuk)
Add new or supplemental oil cooler from DK - https://www.dkcustomproducts.com/200...ls-c159-98.htm
Get high flow, permanent oil filter to replace paper HD filters.
How you can help:
Offer solutions based on your experience and knowledge.

Respectfully,
~Gabe
 

Last edited by GlidinRide; May 27, 2021 at 04:10 PM.
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Old May 27, 2021 | 08:36 PM
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Old May 28, 2021 | 12:56 PM
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Nice cooler compared to some others I've seen. Noticed the statement "ECM reprogramming by HD is required to complete installation" Don't that just figger! Add $200 for that.

Had looked at these:
https://ultracoolfl.com/
https://www.harleyoilcoolers.com/our-story
 

Last edited by GlidinRide; May 28, 2021 at 01:06 PM.
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Old May 28, 2021 | 02:15 PM
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looks like you are de-catted already, so next step is to work on the tune... try to run richer AFRs on the lower RPMs (say, up to 2k, where you spend most of the time in traffic)... im running .975-ish which is the lowest my ECU will go on close-loop up until 1750, then I go raising it to .989 (max) at 2500-3000 which is where i cruise on the hwy, hence dont require much cooling.

its kind of an art...

if you need even more cooling you can go open-loop, but mileage will suffer.
 
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Old May 28, 2021 | 06:45 PM
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I ordered CVO screens for my Amazon lowers and a week or two ago I installed them taking out the solid plate. It really helped with the air flow to the motor and to my legs. It won't help deflect any rain but at least you'll be cooler. I'm running a 2020 RG with a Stage 3 119 kit.
 
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Old May 28, 2021 | 08:24 PM
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Originally Posted by GlidinRide
Nice cooler compared to some others I've seen. Noticed the statement "ECM reprogramming by HD is required to complete installation" Don't that just figger! Add $200 for that.

Had looked at these:
https://ultracoolfl.com/
https://www.harleyoilcoolers.com/our-story
Ask the parts guy or service manager to throw the flash in when you buy the oil cooler, takes 10 min. My dealer did.
 
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Old Jun 4, 2021 | 07:43 PM
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Don't hurt to ask....but be prepared to walk. Thanks.
 
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Old Jun 4, 2021 | 07:45 PM
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Nice, I like that idea. If it ain't to much trouble to swap em out with solids come winter time. I look on AZ, you got a link? Thanks!
 
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Old Jun 4, 2021 | 08:02 PM
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Ditch the cat
 
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Old Jun 4, 2021 | 08:22 PM
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Check out our crotch coolers they work .. I promise that our your money back ..
 
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