180mph+ fuel consumption on a motorcycle?

TridenT

Lifer
Sep 4, 2006
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Let's say you go 180mph-190mph on a motorcycle. What kind of MPG could you expect from that from a typical motorcycle that could maintain that speed for some time?
 

EightySix Four

Diamond Member
Jul 17, 2004
5,122
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Well, you're looking at a relatively high end bike, the MV Agusta 312r was the fastest motorcycle at the time it came out, and it did 312km/h or 194mph. I'm sure some of the new 1000cc bikes (BMW comes to mind) can sustain similarly high speeds, but they're utilizing 100% of the available power to overcome their poor aerodynamics at that speed. In fact, it is highly likely that the rider changing his positiong by 5% could have a 20%+ change in fuel efficiency.

I can't think of any way to get an even close to accurate picture.
 

Fenixgoon

Lifer
Jun 30, 2003
32,867
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Well, you're looking at a relatively high end bike, the MV Agusta 312r was the fastest motorcycle at the time it came out, and it did 312km/h or 194mph. I'm sure some of the new 1000cc bikes (BMW comes to mind) can sustain similarly high speeds, but they're utilizing 100% of the available power to overcome their poor aerodynamics at that speed. In fact, it is highly likely that the rider changing his positiong by 5% could have a 20%+ change in fuel efficiency.

I can't think of any way to get an even close to accurate picture.

yep, changing your tuck will affect your aero, and therefore your top speed. pretty crazy!
 

TridenT

Lifer
Sep 4, 2006
16,800
45
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An academic point at best...are you actually going somewhere with this?

I was trying to figure out how plausible it would be to do the Seattle to Portland ride in less than a hour on a motorcycle. I was trying to figure out how large of a gas tank I'd need or how many fuel ups to be done. (At strategic points along the road. Never done at a station. Too long of time)
 

WackyDan

Diamond Member
Jan 26, 2004
4,794
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All I can tell you is that regardless of the bike I've ridden, flogging it impacted MPG in a harsh way...

2nd... The faster you go, the more gas you burn pushing the air around you. Case in point, at 50-55 MPH, I get 38 MPG on my Spyder... At 75 to 80 MPH I drop to 28 to 31 MPG.... I have a large front cross section compared to a regular bike, and a large touring shield. I have a 6 gallon tank... You do the math.

I know your question is hypothetical, but I really have to ask .... why ask? Your MPG pushing a liter bike flat out is going to be disappointing at best... I'd say high single digits to mid teens if you are lucky.

Lastly, there isn't a realistic way to ride that fast anywhere on public roadways for sustained lengths of time without being a hazard to yourself or others... Much less the impound and potential jail time.
 

jlee

Lifer
Sep 12, 2001
48,518
223
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174 miles in less than an hour?

The chances of you being dead before you got there are probably better than your chances of getting there in less than an hour.
 

PlasmaBomb

Lifer
Nov 19, 2004
11,636
2
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For reference a MotoGP bike averages ~13.1 US mpg per race (assuming that it arrives at the end with a dry tank...)

An F1 car is supposed to achieve about 3.33 US mpg...
 

PlasmaBomb

Lifer
Nov 19, 2004
11,636
2
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The TT might be a better example...

As far as I recall they go through a tank in about 2 laps - so that would be ~11.9 US mpg with an average speed of ~130 mph...
 

Doppel

Lifer
Feb 5, 2011
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These cars in races are not full throttle the entire time. A bike at the speed mentioned basically is, which is why you'll never hit double digits.
 

MotF Bane

No Lifer
Dec 22, 2006
60,801
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174 miles in less than an hour?

The chances of you being dead before you got there are probably better than your chances of getting there in less than an hour.

This. Somebody will change into your lane a mile ahead of you, and you will die. You will hit a little piece of gravel, and you will die. A drop of rain will land in front of your tire, and you will die.
 

exar333

Diamond Member
Feb 7, 2004
8,518
8
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This. Somebody will change into your lane a mile ahead of you, and you will die. You will hit a little piece of gravel, and you will die. A drop of rain will land in front of your tire, and you will die.

This.

Also, are there are turns on the road you plan to drive on? Anything more than a slight turn will more than likely also be deadly...
 
May 13, 2009
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Wrong forum. You could get a serious legit answer from a LSR (land speed racing) forum. Those guys have very lightweight small tanks and only put in as much gas as needed so there is obviously some kind of formula they use.
 

TridenT

Lifer
Sep 4, 2006
16,800
45
91
Wrong forum. You could get a serious legit answer from a LSR (land speed racing) forum. Those guys have very lightweight small tanks and only put in as much gas as needed so there is obviously some kind of formula they use.

Yeah, but they're obviously not going for a 172mile trip...
 

Zargon

Lifer
Nov 3, 2009
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if you want to get there fast its likely you will not be doing much time over 110 or so

at some point het gas milage hit from speed overcomes the speed, because you have to stop and fill up too much
 

TridenT

Lifer
Sep 4, 2006
16,800
45
91
if you want to get there fast its likely you will not be doing much time over 110 or so

at some point het gas milage hit from speed overcomes the speed, because you have to stop and fill up too much

Possibly. It really depends on how fast I can fuel up. I'm thinking sub 30 seconds to fill up. (Literally have someone drop fuel tanks off at certain locations. Drop it all in as fast as possible. Cap it. Gogogogogogo!)