Author Topic: Old Bike, Old Bridge  (Read 2819 times)

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The Old Coot

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on: July 01, 2015, 09:40:14 pm
As I am off until next week, I forget shut down, I went out in the nice weather. Racked up another 100+ miles and got a photo of the RE infront of a old covered bridge. Being from Florida I "Knew" they were all gone hundred of years ago...yeah right! There are over a dozen within 25 mile of my front door and they are still building them. This one is old, 1868 is when it was built, and was moved but is still in service. The road it on now is a dead end so I felt safe blocking the road for a photo. If you're like me and like old covered bridges there over 130 in Ohio. I have more photo if you're interested along with a few points on the bridges I have visited.

Anyway the little beast is running stronger by the mile and wants to run faster than the break in says to but another day like today and I'll be rolling at 50mph!

« Last Edit: July 01, 2015, 11:44:28 pm by The Old Coot »
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Arizoni

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Reply #1 on: July 01, 2015, 11:28:08 pm
Good thing that bridge is covered.

You wouldn't want any of those 28 horse's shying as you ride your Royal Enfield across it.  ;D
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The Old Coot

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Reply #2 on: July 01, 2015, 11:46:46 pm
You wouldn't want any of those 28 horse's shying as you ride your Royal Enfield across it.  ;D

I thought there were 24 at the crank and about 19 give or take at the rear wheel. Well I'll take all I can get!
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Arizoni

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Reply #3 on: July 01, 2015, 11:58:46 pm
I guess I was stretching it a bit.
The 500cc UCE has 27.2 hp @ 5250 rpm but if only one of them shy's it can spook the whole team.  ;D
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ace.cafe

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Reply #4 on: July 03, 2015, 02:49:43 pm
About 20 at the rear wheel. Members have posted dyno charts showing between 19-21 rwhp, on different bikes and different dynos, which all also vary.
You might get 23 rwhp after getting a free flow kit and PC-V.

It's confusing because the factory specs a claim of crank hp at rpm which do not correspond to wheel hp. The UCE 500 reaches max hp at around 4750 rpm when it is in the bike.
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The Old Coot

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Reply #5 on: July 03, 2015, 03:47:06 pm
I remember the older Japanese were so bad on the HP claims we took to calling it Pony Power. One bike was claimed to be making almost 80 HP and a major mag ran in on the dyno and the best they could get was closer to 55.

BUT I don't really care I didn't but the Enfield to race just to enjoy and for that 19 is just fine with me.
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Arizoni

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Reply #6 on: July 03, 2015, 07:59:36 pm
I remember the older Japanese were so bad on the HP claims we took to calling it Pony Power. One bike was claimed to be making almost 80 HP and a major mag ran in on the dyno and the best they could get was closer to 55.

...
Almost (if not all) companies list the vehicles horsepower as that which the engine produces at the crankshaft.

All of the dyno's available to the average rider measures horsepower at the rear wheel.

There is always a significant loss of horsepower between the engine and the rear wheel due to a host of reasons from the obvious like chain friction to the more subtle like oil pumping and oil displacement between the gear teeth and between the rolling elements in the bearings with their outer/inner races.  Add to this the sliding friction between the gear teeth and between any bushings and shafts.

IMO, Royal Enfield is doing quite good to only lose 7 horsepower (26%)  between the engine and the rear wheel.
« Last Edit: July 03, 2015, 08:02:10 pm by Arizoni »
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Mulga Bill

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Reply #7 on: July 24, 2015, 04:10:46 am
Don't care about horsepower, just smile power which the RE has in gallons.
Great pic by the way
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Mulga Bill

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Reply #8 on: July 24, 2015, 04:19:18 am
Old (new)bike, old house ...ummm maybe a theme here?
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