Anyone make a smaller V-Rod Radiator and Shroud? - 1130cc.com: The #1 Harley Davidson V-Rod Forum
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Old 12-26-2012, 02:08 PM   #1
Magik
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Anyone make a smaller V-Rod Radiator and Shroud?

Still looking to get a V-Rod Muscle, but one of the turn offs for me is how big the radiator looks on the front of the bike. I wish they somehow integrated it better so doesn't stick out as much. I feel it takes away and obscures from the rake of the bike.

Does anyone know of any suppliers that make a smaller radiator and shroud or has anyone tried modifying a smaller one from say a metric to put on? I'm sure there is a reason why the V-Rod needs such a big radiator, but hopefully there are some smaller/thinner ones that are just as efficient.
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Old 12-26-2012, 03:03 PM   #2
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Could try putting a DX rad on it? It is a little smaller.
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Old 12-26-2012, 03:28 PM   #3
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Quote:
Originally Posted by Magik View Post
...but hopefully there are some smaller/thinner ones that are just as efficient.
As far as the radiator, I'm sure that an engineer would tell you no, not significantly more efficient. Sure, you could have a radiator with silver or other exotic metals instead of aluminum fins, but your radiator would cost MUCH more for just a bit more cooling performance. Not worth the cost (very high) vs. benefit (being slightly smaller).

I can't say for sure about the F radiator scoops, (I agree that they do look much more pronounced than the other VRSCs) but the original V-Rod ones were driven not so much by what the design team wanted, but by what the engineering team needed for airflow, etc. That was stressed in the "Making of the V-Rod" video.
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Old 12-26-2012, 03:32 PM   #4
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Could try putting a DX rad on it? It is a little smaller.
I've been thinking about that, but not sure if worth the expense. Maybe looking at the DX straight out is a better option.
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Old 12-26-2012, 03:36 PM   #5
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As far as the radiator, I'm sure that an engineer would tell you no, not significantly more efficient. Sure, you could have a radiator with silver or other exotic metals instead of aluminum fins, but your radiator would cost MUCH more for just a bit more cooling performance. Not worth the cost (very high) vs. benefit (being slightly smaller).

I can't say for sure about the F radiator scoops, (I agree that they do look much more pronounced than the other VRSCs) but the original V-Rod ones were driven not so much by what the design team wanted, but by what the engineering team needed for airflow, etc. That was stressed in the "Making of the V-Rod" video.
Yeah, I guess the volume of liquid is what's really needed for that high performance/revving engine. I was just looking at some metrics (like the Yamaha Stryker) and noticed how much smaller the radiator is on there. Of course a different kind of bike/engine, but the size difference is substantial.

Definitely wouldn't want to sacrifice proper cooling of the engine by putting on a smaller radiator though!
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Old 12-26-2012, 03:55 PM   #6
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Old 12-26-2012, 06:36 PM   #7
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Tha coolant radiator is not all that large. You won't be able to reduce its size much without reducing cooling performance. Behind that shroud is also a oil cooler.
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Old 12-26-2012, 07:43 PM   #8
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Don't the DX and the F share the same radiator? I think the only difference is the cover.
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Old 12-26-2012, 07:52 PM   #9
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Quote:
Originally Posted by Magik View Post
Still looking to get a V-Rod Muscle, but one of the turn offs for me is how big the radiator looks on the front of the bike. I wish they somehow integrated it better so doesn't stick out as much. I feel it takes away and obscures from the rake of the bike.

Does anyone know of any suppliers that make a smaller radiator and shroud or has anyone tried modifying a smaller one from say a metric to put on? I'm sure there is a reason why the V-Rod needs such a big radiator, but hopefully there are some smaller/thinner ones that are just as efficient.
Since you live in Honolulu, you don't need a damn radiator for 10 mile rides
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Old 12-26-2012, 08:54 PM   #10
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Originally Posted by RustyG View Post
Tha coolant radiator is not all that large. You won't be able to reduce its size much without reducing cooling performance. Behind that shroud is also a oil cooler.
Hmmmm... I didn't realize the oil cooler is behind there also. Do you happen to know if the all the V-Rods share the same radiator and oil cooler and the shroud is just different and bigger on the Muscle?

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Originally Posted by harleynurse View Post
Since you live in Honolulu, you don't need a damn radiator for 10 mile rides
Haha! It's always so hot here and we have some of the worst afternoon traffic in the nation. Our freeway is like a parking lot from 3:00 to 6:00pm. I actually don't anticipate riding during those times, but there are places on the north and east shore that has long rides with nice scenery too.

Thanks for chiming in everyone. I was hoping someone did a custom job or modification to make that front box a little less obtrusive, but no luck I guess. Some of the aftermarket covers do seem to do a good job of making the area look less boxy while covering up the stock internals, so that may be the only option.
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Old 12-27-2012, 06:10 AM   #11
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The current shroud is as small as they could make it and still pass all of the rigor tests. The issue with the bike is it's radiator placement. Unlike an automobile, the bike's radiator is directly behind the wheel and forks. It causes the airflow to split around the entire bike rather than flow around the front end alone. Add this to the level at which the engine has to operate in order to provide the desired performance and it is a recipe for overheating.

The scoops on the shroud and the radiator design itself were enhanced by using small fins to increase air flux across the radiator. This generates a vortex state and brings in sufficient air both at high speeds as well as a Harley staple - parade riding.

Personally I would be very very careful about altering the radiator design or airflow into the scoops. Some of these aftermarket companies make grills for the radiator which look good. However they gave absolutely zero thought to testing under various conditions and climates or the long term effects on your engine. They only considered the look and your money.

A great deal of wind tunnel testing and pouring over mounds of data was conducted in order to achieve the current design. Make sure any mod you use has more testing behind it than someone on a message board saying "Well I haven't had an issue and I have been doing if for years." Most of those statements are rather haphazard and certainly devoid of controlled conditions. How much have they really done it? Where do they live? What are the riding conditions? What was the load? How do they ride. Blah blah blah blah blah. Blah...but important.

I am not saying it can't be done. I am merely saying that unlike other mods to your bike the ramifications to an incorrect mod could be nearly undetectable at first while causing very serious and expensive permanent damage.
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Old 12-27-2012, 07:04 AM   #12
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Originally Posted by Magik View Post
I've been thinking about that, but not sure if worth the expense. Maybe looking at the DX straight out is a better option.
This is the best idea of this thread. How is it the giant horrid air cover doesn't bother you on the Muscle, that makes it look like a M109 or that terrible rear end? Go with a DX.
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Old 12-27-2012, 08:24 AM   #13
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My personal opinion is that the 'extensively developed' radiator shroud is bullshit and its there purely to hide the rad as far as possible.
There are plenty of bikes out there that produce way more power , and thus heat, than the V-Rod does and seem to manage perfectly well with a radiator behind the front wheel with no scoops or interstellar vortex management systems
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Old 12-27-2012, 08:47 AM   #14
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Quote:
Originally Posted by stevel View Post
My personal opinion is that the 'extensively developed' radiator shroud is bullshit and its there purely to hide the rad as far as possible.
There are plenty of bikes out there that produce way more power , and thus heat, than the V-Rod does and seem to manage perfectly well with a radiator behind the front wheel with no scoops or interstellar vortex management systems
Don't forget hiding the "Flux Capacitor"

Actually it's the same radiator as the other models just the shroud is different. You can get take off shrounds via e-bay for the other models which will bolt right on.
There are also some aftermarket shrouds, NLC customs and others you might look at.
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Old 12-27-2012, 11:09 AM   #15
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Maybe the jug fins alone will suffice Hell,there's plenty of us partially blocking the scoops(50%) with perforated metal screens anyhow
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