Harleys 2015 model lineup
Ultimate HDF Member
Joined: Dec 2009
Posts: 6,519
Likes: 0
From: Nomad
I don't understand why some people see liquid cooling as the end of the world ...
I'm going to ride a motorcycle as long as I find it fun. It doesn't have to be air cooled and really it doesn't even have to be a harley.
Sure, I prefer simple air cooled and naked bikes, but I'll ride whatever is avalable and turns me on. There are few Euro bikes that do that.
I'm going to ride a motorcycle as long as I find it fun. It doesn't have to be air cooled and really it doesn't even have to be a harley.
Sure, I prefer simple air cooled and naked bikes, but I'll ride whatever is avalable and turns me on. There are few Euro bikes that do that.
Road Master
Joined: Feb 2010
Posts: 932
Likes: 0
The Revo is a 60-degree overhead cam engine. The TwinCam is a 45-degree single-crankpin pushrod motor.
They're going to sound just a little bit different...
To be fair though, the TC sounds different than the Evo, which sounds different than the Shovel, which is different than the knucks, which is different than the pans....see how that works?
Road Master
Joined: May 2009
Posts: 1,231
Likes: 5
From: In the north
If more torque is needed down lower in the rpm range, they could also simply swap cams which would effectivly move the torque peak to a lower rpm range.
The thing is that as emission standards become stricter, these engines will be pushed even leaner which means higher temps inside the engine. Aircooled engines are not capable of handling these types of temperatures.
Liquid cooling will keep engine temps in the 200-230 degree range rather then the 300 plus degrees that have been seen coming off of aircooled motors.
As far as the radiators being hidden in the lowers. That is the last place I would want them. You feet would be subjected to constant 200+ degree temps all the time and so would your upper legs etc. Would much rather see a smaller radiator stuffed between the down tubes.
My thought would be to make the jugs a little larger in diameter so that they could have water jackets along with the fins to help dissapate heat.
The bottome end would have to be modified slightly so that you could have a cam driven water pump. An atv sized water pump is not large at all and could be completely hidden. Coolant lines could also be hidden effectlively so that they are not noticable.
All this would mean would be a smaller radiator that is a little larger then some of the oil coolers being used.
Also the oil cooler could be coupled with the radiator to eliminate the need for an extra cooler.
Seasoned HDF Member
Joined: Aug 2010
Posts: 5,173
Likes: 177
From: East Coast
1. The V rod motor has more hp and torque then the most common aircooled V twins in the Harley line up. Only difference is that it is a little higher int he rpm range.
2. A simple gearing change would fix that.
3. If more torque is needed down lower in the rpm range, they could also simply swap cams which would effectivly move the torque peak to a lower rpm range.
4. The thing is that as emission standards become stricter, these engines will be pushed even leaner which means higher temps inside the engine. Aircooled engines are not capable of handling these types of temperatures.
5. Liquid cooling will keep engine temps in the 200-230 degree range rather then the 300 plus degrees that have been seen coming off of aircooled motors.
As far as the radiators being hidden in the lowers. That is the last place I would want them. You feet would be subjected to constant 200+ degree temps all the time and so would your upper legs etc. Would much rather see a smaller radiator stuffed between the down tubes.
6. My thought would be to make the jugs a little larger in diameter so that they could have water jackets along with the fins to help dissapate heat.
7. The bottome end would have to be modified slightly so that you could have a cam driven water pump. An atv sized water pump is not large at all and could be completely hidden. Coolant lines could also be hidden effectlively so that they are not noticable.
All this would mean would be a smaller radiator that is a little larger then some of the oil coolers being used.
8. Also the oil cooler could be coupled with the radiator to eliminate the need for an extra cooler.
- Yes, but more than "a little" higher.
- No, apples and oranges
- Yes to some degree. However, there is no replacement for displacement, and even some metrics are 2000 cc...that's a long way from 1250 cc
- True, but water cooled engines routinely overheat.
- Correct...until they go supernova...
- We're on to something here.
- But will they see the light at the MoCo?
- I like that too, unless the heat from the radiator would negate the cooling effect of the oil cooler.
Road Captain
Joined: May 2009
Posts: 640
Likes: 44
From: Mancheser UK
Ok guys. Take a look at the Triumph Rocket 3. The largest mc engine in standard production. Take a look at the rad. Is it hot when riding, no it's not. I'm quite sure HD will come up with some thing that hits the mark. Have a bit of faith in the company. After all it has been going continually since 1903 so they must be doing something right
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Road Captain
Joined: Oct 2008
Posts: 717
Likes: 3
From: Cincinnati
Todd8080 is a graphic artist and motorcycle fabricator, he made those renditions 7 or 8 years ago and they have nothing to do with 2015, just what could be done with a little imagination.
Here's a link to a recent article posted on TheKneeslider:
http://thekneeslider.com/archives/20...-a-v-rod-glide
Here's a link to a recent article posted on TheKneeslider:
http://thekneeslider.com/archives/20...-a-v-rod-glide
Stellar HDF Member
Joined: Oct 2005
Posts: 2,379
Likes: 226
Uggghh
I'd rather have to sell my 2011 103" SG with ABS and go back to an old carbed, EVO - 5 speed that ride one of those things. They would look, sound, and ride like every other metric cruiser/bagger on the planet.
I'd rather have to sell my 2011 103" SG with ABS and go back to an old carbed, EVO - 5 speed that ride one of those things. They would look, sound, and ride like every other metric cruiser/bagger on the planet.