Hotter than Hell
Outstanding HDF Member
Joined: Sep 2010
Posts: 2,630
Likes: 185
From: Mountain West, Big Sky Country
Here is a REPORT on How to Cool Down your Twin Cam. Lot's of little inexpensive things you can do that will have a significant effect.
The oil and the headers do Not make enough difference that you will feel it.
The oil and the headers do Not make enough difference that you will feel it.
how high do you have to go, is 1 inch enough?
Ultimate HDF Member
Joined: Jan 2009
Posts: 5,016
Likes: 277
From: East Tn Foot of The Dragon
Scotty, the cheapest thing you can do to your RGU to lower temps here in Texas is to remove your lower fairings. Pretty simple to do and only takes about 10 minutes for both. I removed them on my 15 Ultra a couple of weeks ago and it really makes a difference. When the weather turns cooler this fall/ winter I will put them back on. Until then I am enjoying the cooler ride, both in stop and go and on the road.
Road Master
Joined: Jul 2013
Posts: 830
Likes: 121
From: Hill Country, Tx
removing your lowers will not lower your engine temps. it may reduce the amount of heat that YOU feel, but that isn't the same. the lowers are designed in such a way as to direct air to your cylinders. remove them, and you remove that funnel.
now, as a compromise, I remove the doors in the warmer months, which allows for more airflow over my legs, which helps some with the felt heat, but still funnels some air to the engine.
now, as a compromise, I remove the doors in the warmer months, which allows for more airflow over my legs, which helps some with the felt heat, but still funnels some air to the engine.
Grand HDF Member
Joined: Oct 2010
Posts: 4,618
Likes: 290
From: Johnstown, PA
Thank for the list from DK's thaose are some great inexpensive or free way to try and cool it down. I'm going to try some of those.
With this bike, I am not falling in to all of the performance mods, it runs great as is. One of the things that used to bite me on my old ride was changing things up, usually cause me new issues I had to resolve.
One thing I bought that really helps keep the burning pain off of my right calf is a pair of higher harness boots. I wear the HD Hustins. Blocks a lot of the heat, and my calf no longer feels like it's frying.- something to give a try if you don't want to deviate from stock..
With this bike, I am not falling in to all of the performance mods, it runs great as is. One of the things that used to bite me on my old ride was changing things up, usually cause me new issues I had to resolve.
One thing I bought that really helps keep the burning pain off of my right calf is a pair of higher harness boots. I wear the HD Hustins. Blocks a lot of the heat, and my calf no longer feels like it's frying.- something to give a try if you don't want to deviate from stock..
Last edited by steelerdude1; Mar 27, 2017 at 09:10 PM.
The keys are to uncover the top of the engine, so that the tank is not trapping the heat, AND to get the front of the tank angled up enough that the air will flow under it, hitting the engine, instead of over it, hitting the riders chest.
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DKCustomProducts.com
DKCustomProducts.com
Seasoned HDF Member
Joined: Aug 2011
Posts: 11,814
Likes: 5,120
From: SW Ohio
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Road Warrior
Joined: Oct 2013
Posts: 1,399
Likes: 1,040
From: Seabrook, NH
The mods I made to my bike definitely helped. My second dyno tune also made my bike run better but the bottom line is to avoid stop and go traffic and stay moving. I also remove my lowers which helps keep me a little cooler but I'm not sure what it does for engine temps. I know that is not an option on your bike. I still think a carb runs much cooler than EFI.
