Two Wheel Fix - 101.5 mpg on a Ninja 250

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101.5 mpg on a Ninja 250

http://ecomodder.com/forum/showthrea...50-a-8686.html

Quote:

You can see my initial post about my bike HERE. Its a stock 2003 Ninja 250 with changed gearing (from 14/45 [3.21] to 15/39 [2.60]). Even the carb jetting is stock. The only other change is the tires. Stock, the bike comes with 100/80/16 fronts, and 120/80/16 rears. My bike has 100/90/16 fronts and 130/90/16 rears.

As of 05/15/09, my previous mpg average for 1 year was 71.9mpg. As i had stated in the post linked above, its my commuter bike for which most of the time was spent on the Garden State Parkway (65mph limit) doing 75mph on average. I always position myself in a tuck any time i am over 45-50mph.

After reading about techniques that the currently successful hypermilers are using, I was curious to see how my little Ninja's fuel efficiency would improve if i applied these techniques to my every day riding style. So i did... Heres the log since then. (Note: i started these techniques after the 5/15/09 fill up, so the data after that date reflects the effects of these techniques.)

Tank ending on 5/21/09: 8% mpg gain from average. 77.7mpg
The first thing i started to do was slow my highway speed down to 65mph. I had just began to attempt some very minor EOC events... it takes time to "learn" your commute route and to spot the correct EOC initiation points, as well as learning how far the vehicle can travel during EOC. Im sure you hypermilers know what i mean.

Tank ending on 5/28/09: 19% mpg gain from average. 85.7mpg
On this tank, i did not exceed 60mph on the highway. My EOC'ing was more pronounced as i had gained more experience with it on my bike. I also limited my in-town speed to 5mph under the speed limit, no less than 30mph, in the highest gear. Acceleration, as is my riding style with this bike, was minimal.

I was ecstatic!! I could not believe the improvement at this point. While it was a significant improvement, I still wanted to go through another tank using the same techniques in order to validate the improvements

Tank ending on 6/7/09: 31% mpg gain from average. 94.1mpg!
Inspired by my previous tank's improvement, i pretty much tried as hard as i could to EOC as much as was realistically necessary. I still did not exceed 60mph on the highway, however sometimes i would slow to 55mph if there was no one close behind me (even so, other drivers didn't seem to mind and calmly passed me). In-town speed was still 5mph under the speed limit.

I would like to note that my fill up routine is very uniform in that i always fill up to where the gas is touching a metal rim below the gas cap assembly. To make things even better, all 3 of these fill ups were at the EXACT same fuel pump.

PS: If you happen to live in New Jersey and see a yellow Ninja 250 driving at or a little below the speed limit, with the rider crouched down as much as possible, usually carrying a book bag, please feel free to honk at me and/or give me the thumbs up if you see me!

Tank ending on 06-15-09: 92.8mpg

Sooooo close to 100mpg!!!

Tank ending on 06-22-09: 101.5mpg!!

I did it!!!!!!! My bike went 391 miles before hitting reserve!!! Its crazy! I told my dad how I am now getting over 90mpg and he asked me whether my odometer was incorrect or not.

As a side note: The gas in this tank (from 6-15 to 6-22) was exxon 87.... it must have been bad gas because any more than 40-50% throttle and my bike would start pinging. It didn't bother me much though since i rarely ever use that much throttle.

Tank ending on 06-30-09: 97.8 mpg!

Was stuck in traffic on the highway a few times because of people rushing down to the shore. Tried my best to EOC and DWB in traffic as much as i could, but i think it took a little hit in mpg from that.

Tank ending on 07-10-2009: 95.9 mpg!

I did an experiment on this tank. I had been experiencing lower back pain from tucking down alot. On this tank, i sat up comfortably and never crouched and I still was able to achieve over 90mpg. It appears that 55mph is a sweet spot as far as aerodynamics go. I am very happy that i was able to achieve this number without crouching. Further tanks will confirm the success of EOC and 55mph maximum cruising on motorcycles (any motor vehicle for that matter).

Tank ending on 07-17-09: 91.6 mpg

Still sitting up comfortably and still achieving over 90mpg. I had done a 60mile trip at 65mph during this tank because i was pressed for time getting to class. That may have dropped my MPG off a little bit. More to come!

Tank ending on 07-24-09: 90.4 mpg

This tank, my mpg was down because i was a little pissed off at a driver on the parkway and had to catch up to him (he was doing 90) so i could give him a piece of my mind. Doing over 90mph on this bike requires WOT. I was doing 55mph in the right lane and he came flying up behind me and nearly clipped me when passing me.... i literally felt the turbulence on my leg coming off his front bumper. He was like a foot away from me. Turns out, it looked like he was a retired trooper or something (he had the NJ Trooper shield on his side window)..... but since when does that give them the right to drive like an idiot? I still yelled and screamed at the guy.

That sounds like a good way to get killed in Jersey... I know I would be pissed at some kook doing 5-15mph UNDER the speed limit. Especially with all the accelerate and coast crap "hypermilers" do.

I love how he says he caught up and yelled at the guy...

ya fuck'n moron... that's a good way to get caught in a loosing battle of road rage... ESPECIALLY on a 250. it's one thing to do it on a 600 or 1000 where you can loose him quickly... but odds are that car will out accelerate a 250 when you're starting at 70-90.

and not sure how he caught up to the guy anyways if the guy was doing 90... it'd take forever for the 250 to get up there...

i cant fucking stand hypermilers.

I can't remember but do the older 250s take speed and odometer readings from the front wheel or the countershaft? Just wondering since that would make a difference in "perceived" mpg. Also, his tire change will also make a difference in his odometer readings. To be honest, I thought that this was a joke and that was the punchline. I don't have the math skills to calculate how big a difference his tire swap will make but it's probably significant. :idk:

Quote:

Originally Posted by TIGGER (Post 253144)

prety sure its the front wheel, now would the sprocket change affect the odometer as well?

Tom

Quote:

Originally Posted by tommymac (Post 253147)

prety sure its the front wheel, now would the sprocket change affect the odometer as well?

Tom

Not if it gets the the speed from the front wheel. He did change the gearing quite a bit. So I'm sure that's where most of the fuel savings is from. He has no bottom end with that gearing though.

Quote:

Originally Posted by Rider (Post 253153)

Not if it gets the the speed from the front wheel. He did change the gearing quite a bit. So I'm sure that's where most of the fuel savings is from. He has no bottom end with that gearing though.

I can't imagine how ridiculously sluggish that thing must be after changing the gearing like that. :panic:

And did he say he was going 30 in top gear? :wtf:

Quote:

Originally Posted by Rider (Post 253153)

Not if it gets the the speed from the front wheel. He did change the gearing quite a bit. So I'm sure that's where most of the fuel savings is from. He has no bottom end with that gearing though.

Yea it comes from the front but you guys are very correct in the sluggishness dept! Man, why not just buy a scooter and get it over with? If your only concern is gas mileage....:idk:

Quote:

Originally Posted by TIGGER (Post 253164)

Yea it comes from the front but you guys are very correct in the sluggishness dept! Man, why not just buy a scooter and get it over with? If your only concern is gas mileage....:idk:

Well, if he is getting 101 mpg on the vehicle he already has, why buy a different one?

Quote:

Originally Posted by HurricaneHeather (Post 253172)

Well, if he is getting 101 mpg on the vehicle he already has, why buy a different one?

He's not really getting 101mpg. Because he has larger(taller) tires his numbers are exaggerated by about 10%. Still great mileage but not as good as he is calculating.

Quote:

Originally Posted by HurricaneHeather (Post 253172)

Well, if he is getting 101 mpg on the vehicle he already has, why buy a different one?

Hmm good point, but if he bought a vehicle that gets almost 100 mpg in the first place... see what I mean? Hell, I don't know why people like this don't just take public transportation/ride a bike.:lol:

Quote:

Originally Posted by Rider (Post 253175)

He's not really getting 101mpg. Because he has larger(taller) tires his numbers are exaggerated by about 10%. Still great mileage but not as good as he is calculating.

I gotcha. My point was, why would he bother buying a different vehicle if he already has one that has as good or better gas mileage than a scooter?

That's as logical as buying a brand new motorcycle to commute on to save money on gas. :lol: It is going to take a long ass time for the money you spent on the bike to be compensated for on saved gas $$.

Quote:

Originally Posted by HurricaneHeather (Post 253185)

How about, he should have bought a scooter in the first place? Man, he'd be getting 200mpg right now! Kinda like the Chevy Volt!!!:lol:

http://i289.photobucket.com/albums/l...t-3-4-view.jpg

http://news.lalate.com/2009/08/11/chevy-gm-volt/

not to sound dumb but what are "EOC and DWB"?

Quote:

Originally Posted by Rider (Post 253175)

He's not really getting 101mpg. Because he has larger(taller) tires his numbers are exaggerated by about 10%. Still great mileage but not as good as he is calculating.

Wouldn't taller tires mean he is actually getting BETTER mileage than he is calculating?

Quote:

Originally Posted by Particle Man (Post 253210)

not to sound dumb but what are "EOC and DWB"?

I'm guessing EOC is "Engine Off Coasting"

Fuck the hypermilers and fuck that pussy ass Ninja 250!!!

My scooter gets 82MPH going WFO. I keep that fucking throttle pinned all the way until I have to brake.

Quote:

Originally Posted by fnfalman (Post 253350)

Fuck the hypermilers and fuck that pussy ass Ninja 250!!!

My scooter gets 82MPH going WFO. I keep that fucking throttle pinned all the way until I have to brake.

You fail to mention that your scooter, at WFO, is only doing 18mph.

Quote:

Originally Posted by marko138 (Post 253365)

You fail to mention that your scooter, at WFO, is only doing 18mph.

No he clearly stated he gets 82MPH. :D

Quote:

Originally Posted by HurricaneHeather (Post 253366)

No he clearly stated he gets 82MPH. :D

I figured he meant MPG. :idk: Oh well, I dont believe him.

Quote:

Originally Posted by marko138 (Post 253368)

I figured he meant MPG. :idk: Oh well, I dont believe him.

I know, I was kidding. :wink:

Quote:

Originally Posted by HurricaneHeather (Post 253377)

I know, I was kidding. :wink:

Either way I mis-read it.

Quote:

Originally Posted by Phenix_Rider (Post 253347)

I'm guessing EOC is "Engine Off Coasting"

ok - that's what I was afraid of. That's kinda dumb... me personally, I like the ability to accellerate from a dipshit behind me not paying attention yacking on a cell phone/adjusting the radio/eating/putting on makeup/watching tv/texting/etc2

Quote:

Originally Posted by marko138 (Post 253365)

You fail to mention that your scooter, at WFO, is only doing 18mph.

It's an Aprilia and not a rice burner, it goes a lot faster than 18MPH.

Quote:

Originally Posted by fnfalman (Post 253629)

It's an Aprilia and not a rice burner, it goes a lot faster than 18MPH.

20?

redflip

Quote:

Originally Posted by fnfalman (Post 253629)

It's an Aprilia and not a rice burner, it goes a lot faster than 18MPH.

Easy killer, just crackin jokes.

id also like to comment that the GSP is def not a place id want to be on a 250

Quote:

Originally Posted by Dave (Post 253800)

id also like to comment that the GSP is def not a place id want to be on a 250

Hey that reminds me, why the fuck to they call it The Garden State? Ive been to Jersey and I've never seen a single garden in that shithole.

Quote:

Originally Posted by Rider (Post 253811)

Hey that reminds me, why the fuck to they call it The Garden State? Ive been to Jersey and I've never seen a single garden in that shithole.

:lol Rolling today.

Quote:

Originally Posted by Rider (Post 253811)

Hey that reminds me, why the fuck to they call it The Garden State? Ive been to Jersey and I've never seen a single garden in that shithole.

It's probably an old moniker that stuck... Kinda like how Detroit will still be called the "motor city" even after all of the auto plants have closed...:lol:

Quote:

Originally Posted by shmike (Post 253231)

Wouldn't taller tires mean he is actually getting BETTER mileage than he is calculating?

Yep, if he put taller tires on, he's going farther with each tire rotation. His speedometer will register lower speed and miles than he's actually travelling.

Quote:

Originally Posted by Rider (Post 253811)

Hey that reminds me, why the fuck to they call it The Garden State? Ive been to Jersey and I've never seen a single garden in that shithole.

never been to south jersey i trust?

Wow... I wouldnt even want to ride 105miles on a 250 ninja to find out.

Quote:

Originally Posted by Apoc (Post 254188)

Wow... I wouldnt even want to ride 105miles on a 250 ninja to find out.

Ba...zing! Yea I did it one time and never again!!!:lol:

Hows your leather skin sexy like hers?

Quote:

Originally Posted by Rider (Post 253811)

Hey that reminds me, why the fuck to they call it The Garden State? Ive been to Jersey and I've never seen a single garden in that shithole.

Dave got a garden (a crappy one), Sixxxer has a garden (a slightly less crappy one), and so do I (about as crappy as Sixxxers). Once you get away from the metropolitan areas close to Philly and NYC everyone has a garden in front of their house.

Quote:

Originally Posted by Dave (Post 254175)

never been to south jersey i trust?

I've been to Camden. What a shit hole.

Quote:

Originally Posted by TIGGER (Post 254132)

It's probably an old moniker that stuck... Kinda like how Detroit will still be called the "motor city" even after all of the auto plants have closed...:lol:

That's right, Motown will be called that forever whether we have an auto industry here or not.

I'm estatic over the 41 mpg average I'm now getting on the 1125 after the drummer and reflash!
All that and still gobs of HP and torque!

Quote:

Originally Posted by marko138 (Post 254265)

I've been to Camden. What a shit hole.

thats like trying to judge a girl's beauty from a blown up shot of her asshole mid dook.

Quote:

Originally Posted by derf (Post 254204)

victoria said something about burying you in her crappy garden and went back to sharpening knives

I did just dig a 5 foot deep ditch next to the house filled with gravel that I could easily shove your ass into and bury. So tell me how shitty my garden is again next time you come over:shovel::shovel::shovel:

:lol:

Quote:

Originally Posted by Dave (Post 254650)

thats like trying to judge a girl's beauty from a blown up shot of her asshole mid dook.

Fair enough.

Quote:

Originally Posted by Dave (Post 254650)

thats like trying to judge a girl's beauty from a blown up shot of her asshole mid dook.

:lmao:

I'm thinking he has his tire sizes backwards. The OEM is 130 and I switched mine to a 120. He has it the other way around.

Quote:

Originally Posted by HokieDNA01 (Post 256617)

I'm thinking he has his tire sizes backwards. The OEM is 130 and I switched mine to a 120. He has it the other way around.

120 is OEM

Nevermind your talking about your 250 rear aren't you? At first I thought you were talking about your 750 front. I knew you had a 750 but I didn't know you had a 250 also.

Quote:

Originally Posted by Dave (Post 254650)

thats like trying to judge a girl's beauty from a blown up shot of her asshole mid dook.

timeless
classic
line right there