Fuel Mileage, 650 vs 1000 soem observations - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 21 Old 05-21-2008, 01:09 PM Thread Starter
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Fuel Mileage, 650 vs 1000 soem observations

Hi All,

I just came back from the V-Strom East meet at the Ironhorse in North Carolina. (Great time!)

I went with three other Canadians. As a group we had two 650's and two 1000's. The total ride was a bit over 5000 km for me.

What I found interesting was the highway part of the ride. We were largely traveling at 65 to 75 miles per hour. The 650's both are 2006 models and had the 16 tooth front sprocket. One of the 1000's was a 2007 and was pretty stock with almost no farkels. The 650's had large GIVI top boxes (mine a 52 liter, the other a bit smaller) and both had E41 side cases, one on GIVI racks and the other (mine) on SW-Motech quick lock side racks. The 1000 that I paid attention to fuel had some soft side luggage that didn't stick out as far as my cases and a small top case all of us had a tent and some stuff in the rear seat area. The 1000 rider was a bit of a novice and rode more gently than us but ultimately he traveled at the same speeds on the highway. And there was a lot of wind, rarely tail winds.

When we compared the costs of fuel in fill-ups on the highway rides the 1000 used roughly the same amount of gas as we did on the 650's. Some fill-ups were slightly more, and some were slightly less (literally pennies difference!) I think the bottom line is that at higher speed the 1000's aren't working nearly as hard and ultimately have to push the same size hole through the air as we did so they end up being very similar in mileage while our 650s spend a lot more time at higher throttle settings and end up sucking a lot of gas.

I will do a detailed look at my mileage later but it looked to me that my range on a tank dropped by roughly 100 km or 60 miles compared to the normal riding along on secondary roads and this put it in line with the 1000 mileage I have seen my friends get in normal, easy rides.

..Tom

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 200,000+ km, 125,000 miles.

This can help preventing from cars pulling out in front of you (SMIDSY)
SMIDSY detailed report.


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post #2 of 21 Old 05-21-2008, 01:22 PM
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That (sorta) makes sense... The 1000's have an overdrive gear, which drops the RPMs on those long freeway lopes.

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post #3 of 21 Old 05-21-2008, 01:58 PM
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I had a similar experience. My usual mpg is near 50-51. On my interstate run recently I got more like 43. I attribute it to side-boxes and going too fast (75ish mph per the GPS)

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post #4 of 21 Old 05-21-2008, 02:00 PM
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Yeah, but the 650s had 16T sprockets on there too, so shouldn't have been spinning very high.

I would think that aerodynamics and throttle control played the biggest role if you're talking all highway.

W/ cruise control, a 6.0 liter Vette will do 28mpg+ all day on the highway at 75mph+. The overly tall gearing and .26 drag coefficient don't exactly hurt. Thats the same as I get in my 2.0 liter Focus in those conditions.

For regular use though, in a mix of city and highway traffic, the average economy of the Focus vs the Vette really starts to diverge though, and I'd imagine its the same w/ the 650 vs the 1000.
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post #5 of 21 Old 05-21-2008, 03:19 PM
 
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The side bags make a huge difference. With side cases my Wee averages about 45mpg and without it averages about 53mpg. I'm sure the more weight you pack on the more you'll see a drop as well. The little wee doesn't have the power for the weight and areodymic set backs, thus forcing it to work harder.

Thats just how I see it anyway.
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post #6 of 21 Old 05-21-2008, 03:38 PM Thread Starter
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With the 16 tooth sprocket, 5,500 rpm is 120 kph or very close to 75 mph. Most of the interstate running was at this speed or close to it.

On looking at my actual mileage, it looks like roughly a 10% or slighly worse reduction in mileage. My normal US MPG is around 50 mpg, the interstate sections showed closer to 44 or 45 mpg US.

I agree about the aerodynamics. Bikes are incredibly un-aerodynamic, and the extra side cases and other crap sure doesn't help.

It is also interesting to note that in non-interstate riding around the area, that my mileage seemed to be 10 to 15% better than I would see in Canada. I thought we were riding in a more spirited way than normal here and would have expected mileage to drop a bit. I is hard to do a direct comparison as there are too many variables but I suspect that you get a bit better mileage in the US than in Canada.

I also noticed that, as bad as Americans think their fuel prices are (and yes, they are bad!), we pay about 20% more for our gas in Ontario than you do.

..Tom

Quote:
Originally Posted by Ducman69 View Post
Yeah, but the 650s had 16T sprockets on there too, so shouldn't have been spinning very high.

I would think that aerodynamics and throttle control played the biggest role if you're talking all highway.

W/ cruise control, a 6.0 liter Vette will do 28mpg+ all day on the highway at 75mph+. The overly tall gearing and .26 drag coefficient don't exactly hurt. Thats the same as I get in my 2.0 liter Focus in those conditions.

For regular use though, in a mix of city and highway traffic, the average economy of the Focus vs the Vette really starts to diverge though, and I'd imagine its the same w/ the 650 vs the 1000.

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 200,000+ km, 125,000 miles.

This can help preventing from cars pulling out in front of you (SMIDSY)
SMIDSY detailed report.


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post #7 of 21 Old 05-21-2008, 03:43 PM
 
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Quote:
Originally Posted by V-Tom View Post
I also noticed that, as bad as Americans think their fuel prices are (and yes, they are bad!), we pay about 20% more for our gas in Ontario than you do.

..Tom
Just out of curiosity, do you guys pay Federal, State, City, Real Estate and school taxes too in CN?
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post #8 of 21 Old 05-21-2008, 03:46 PM
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You sure the decreased gas mileage wasn't due to the biscuits and gravy, southern fried pork chops, burgers, dogs, pork rinds etc....? Increased surface area, especially in the area just above the beltline can cause a slight performance drop as well.

Ian

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post #9 of 21 Old 05-21-2008, 04:00 PM
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Quote:
Originally Posted by The Shepherd View Post
...Increased surface area, especially in the area just above the beltline can cause a slight performance drop as well.
Maybe that's the reason I'm so slow?

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post #10 of 21 Old 05-21-2008, 04:16 PM
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I wrote this in the other mpg thread.

I checked the V-Strom's mpg yesterday. It was only 38.something! I have gotten as high as 52. I was alarmed at the 38 figure but remembered I had used the right hand pretty liberally on the previous ride.

So yesterday was an economy run. It was only 60 out so I could use 6th gear to as low as an indicated 50 mph. I stayed in as high a gear as I could stand and seldom exceeded 4,000 rpms. I tried to carry more speed through the corners and gently accelerated out in what seemed like two gears too high. It was kind of a fun challenge. I haven't checked the mpg yet, but the trip meter says 56 miles and the gas gauge hasn't moved.

Anyone else ever done an economy run?

Buck

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