What does the new “twin cooled” system actually do? Not a Rushmore thread

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Mar 30, 2014 | 08:45 PM

#11

dirtdobber

Elite HDF Member

Joined: Jul 2007

Posts: 4,749

Likes: 16

From: sand mountain Alabama

It would seem to me that there are several reasons they are trying liquid cool.
1) riders/passenger comfort
2) meet epa standards easier
3) able to add some compression for better power.

Mar 30, 2014 | 09:04 PM

#12

ftzoid

Tourer

Joined: Aug 2009

Posts: 278

Likes: 1

From: Detroit

Quote:

Originally Posted by Hammz

Good report Jason. For the record, the 2014 EITMS activates at 80ºF ambient, not at a specific engine temperature, so sitting in ambient temps below 80, regardless of how hot the engine gets, the EITMS won't activate, but above 80 it'll come on at every stop, regardless of engine temps. Seems like the changes were made to address rider comfort issues, not engine longevity.

I have 3,800+ miles on my '14 Limited, but mostly at ambients below 80. Will find out this riding season if engine temps are an issue, but for now, my impressions are the cooling system is effective. Would still prefer having an oil cooler too, but will see how it performs w/o one for now.

Hammz, when you say "for the record" EITMS activates no matter what the motor temp is, but on any nice day that's over 80 deg every time you stop? I just gotta know exactly which manual you read that in?

Mar 30, 2014 | 09:14 PM

#13

ftzoid

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Joined: Aug 2009

Posts: 278

Likes: 1

From: Detroit

fabrik8r, thanks for your research/efforts and for sharing the wealth; appreciated!

Mar 31, 2014 | 03:59 AM

#14

Hammz

Grand HDF Member

Joined: Sep 2013

Posts: 3,820

Likes: 587

From: Michigan

Quote:

Originally Posted by ftzoid

Don't believe you'll find the info in the manuals. H-D released a special bulletin on this.

https://www.hdforums.com/forum/12196551-post33.html

Mar 31, 2014 | 04:55 AM

#15

grbrown

Club Member

Joined: Jun 2007

Posts: 45,429

Likes: 2,897

From: Bedford UK

Quote:

What does the new “twin cooled” system actually do?

It enables the MoCo to continue to manufacture its traditional air-cooled V-twins, while complying with ever-tightening EPA regulations, improving rider comfort and also improving performance. Not living in a hot land I can't get excited about head and oil temps, so have never paid attention to them!

Mar 31, 2014 | 05:49 AM

#16

Gunnysgt

Grand HDF Member

Joined: Oct 2009

Posts: 3,824

Likes: 603

From: Myrtle Beach SC

The new Twin Cooled motor also gives those with too much time on their hands something to nit pick the hell out of when they should be riding strictly for the enjoyment of riding. I like mine, nuff said.