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[3mcam]

Has anyone completed a basic heat comparison? I really like the New 2015 Street Glides. Has the Moco upgraded the 110" since 2010? I would hate to spend 36k just for Twin Cooled heads
if there is no significant heat reduction. Any body have any numbers?

[Royalroadie]

I saw that they started to call them twin cooled, myself, but have on idea what they are trying to say!

[FLHTCUSE7]

No heat issues with mine

[Steve Cole]

Has anyone completed a basic heat comparison? I really like the New 2015 Street Glides. Has the Moco upgraded the 110" since 2010? I would hate to spend 36k just for Twin Cooled heads
if there is no significant heat reduction. Any body have any numbers?

Heat reduction, yes, "significant" no. The Twin cooled of shower head as we call it cools the cylinder head area but it does nothing for exhaust temperatures and most of the heat riders feel is the rear cylinder exhaust pipe in slow speed areas (traffic).

[Boatman]

Like everyone has stated, felt heat on the right leg is less but you are still sitting on a engine.

I have a Fullsac headpipe, Fullsac TTS map, and stock mufflers/baffles on the 14 and felt heat is less than my 2010 with the same mod's.. 

This bike runs way better than my 10 (even with Andrew's 54's)..  No more engine mod's on the 14 needed for me.  The 14's also have increased compression and a new ecm..

Regarding 110 upgrades, in 2013 they went with SE lifters and full needle bearings for inner cam bearings.

[LilysBigDaddy]

Have not heard any numbers but I would think Harley would proudly boast any significant drop in degrees they would have obtained, I will say mine seems to operate often (fan) on upper 80's+ days and you can really feel a good flow of heat coming out of the leg fairing vents as your riding, so thermodynamically speaking, heat removed is heat removed. I hope that this will prove to mean better reliability even though it was all about performance, good to know about the inner bearings, had that failure on my 06 SG at 65k about 2 years ago, the rear inner, and that was the replacement answer then. Maybe off thread here, but wondering, what is the gain on the SE lifters compared to the previous?

[Boatman]

Maybe off thread here, but wondering, what is the gain on the SE lifters compared to the previous?

We 13 and later owners will find out for sure.  The surface area of the needle bearings is larger at the roller.

[3mcam]

Thanks for the info. Nice to hear that the MOCO has done some upgrades to the engine. Has anyone with the wet heads been stuck in traffic for an extended time. If so how did the system perform?

[Royalroadie]

I will say mine seems to operate often (fan) on upper 80's+ days and you can really feel a good flow of heat coming out of the leg fairing vents as your riding, so thermodynamically speaking, heat removed is heat removed.

Are you saying that H-D put a cooling fan on the motor?  If so where is it located.   I am aware of their parade fan.  This twin cooled term is new to me.   

[grc]

Are you saying that H-D put a cooling fan on the motor?  If so where is it located.   I am aware of their parade fan.  This twin cooled term is new to me.

Twin Cooled is how Harley describes their water cooled head system.  And the fan LilysBigDaddy mentioned is the radiator fan.  The radiator and coolant overflow bottle are located in the fairing lowers on select Touring models.

Jerry

[CVO Aqua-Glider]

My 2014 110" feels noticeably cooler to me than my old 2011 103" felt.  Twin cooled is definitely cooler for the passenger too according to my Wife.

[FLSTFI Dave]

Like everyone has stated, felt heat on the right leg is less but you are still sitting on a engine.

I have a Fullsac headpipe, Fullsac TTS map, and stock mufflers/baffles on the 14 and felt heat is less than my 2010 with the same mod's.. 

This bike runs way better than my 10 (even with Andrew's 54's)..  No more engine mod's on the 14 needed for me.  The 14's also have increased compression and a new ecm..

Regarding 110 upgrades, in 2013 they went with SE lifters and full needle bearings for inner cam bearings.

Are you sure on the new cam in the Twin Cooled motors?  I have been told the cam is still the 255.  In fact I talked to a very reputable tuner about the 2015 CVO Road Glide Utra I am getting, and asked about cams, his word were why change the 255 that is in that bike, it makes great low torque just what ultras need.  He has tuned and built a lot of 2014 110 motors.

I would really like to know the true answer on that, still a 255 in the wet bikes?

[Boatman]

Yes, wetheads still have the 255 (same as my 10, I put the 54's in the 10)..  Will keep 255's in the 14..

[Royalroadie]

Oh. I finally get it!  The new CVO touring models are wet heads!  At least the cvo street glide and the road glide according to their website comparison charts.  They sure have not brought to anyone's attention.   Maybe the do not want to acknowledge the fact that the cvo runs hotter than Hell.

[grc]

Are you sure on the new cam in the Twin Cooled motors?  I have been told the cam is still the 255.  In fact I talked to a very reputable tuner about the 2015 CVO Road Glide Utra I am getting, and asked about cams, his word were why change the 255 that is in that bike, it makes great low torque just what ultras need.  He has tuned and built a lot of 2014 110 motors.

I would really like to know the true answer on that, still a 255 in the wet bikes?

ALL CVO110 engines have the 255 cams, regardless of wet or dry heads.  I think the confusion comes from the changes Harley mentioned last year on the non-CVO wet heads.  Those have a different cam profile and higher compression than their dry counterparts.

Jerry