Ducati Monster Forum

Moto Board => Tech => Topic started by: He Man on September 29, 2008, 09:36:09 PM

Title: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on September 29, 2008, 09:36:09 PM
HELL YEA.

I just filled up 3.406 gallons. I could of done 3.5 but i was already right under the bottle neck. bike never sputtered or anything.


WOOO!!
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: mmakay on September 30, 2008, 07:42:42 AM
 ???
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: Heath on September 30, 2008, 08:28:48 AM
That is so dangerously close to running out.  Having run out of gas before, on the freeway, I try my best not to have it happen again.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: Ducatiloo on September 30, 2008, 08:45:40 AM
Way to push it to the limit [thumbsup]  If you rock the bike, I've discovered you can get .25 gallons extra out from under the filter.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: arai_speed on September 30, 2008, 09:12:36 AM
Quote from: mmakay on September 30, 2008, 07:42:42 AM
???

It's a post count thing....
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on September 30, 2008, 09:57:47 AM
Quote from: arai_speed on September 30, 2008, 09:12:36 AM
It's a post count thing....

umm.okay...

Anyway....


Myths been busted. I didnt think i had the bike THAT low on gas. I've pushed my bike to the station twice before and i still havnet filled up more than 3.1gallons until now.

I have a data log of my fuel runs for the past 3 weeks (filled up 5 times already) and I'm gonna need someone who can use excell to make a chart for me so I can throw up a tutorial on what fuel grade you should run on a 2valver. This is the furthest my tank has ever gone in city, but also my worst MPG to date since ive started logging. heh, i wonde if i can get 3.5 gallons, ill try rocker her next time.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: jdubbs32584 on September 30, 2008, 01:00:34 PM
Quote from: He Man on September 30, 2008, 09:57:47 AM
umm.okay...

Anyway....


Myths been busted. I didnt think i had the bike THAT low on gas. I've pushed my bike to the station twice before and i still havnet filled up more than 3.1gallons until now.

I have a data log of my fuel runs for the past 3 weeks (filled up 5 times already) and I'm gonna need someone who can use excell to make a chart for me so I can throw up a tutorial on what fuel grade you should run on a 2valver. This is the furthest my tank has ever gone in city, but also my worst MPG to date since ive started logging. heh, i wonde if i can get 3.5 gallons, ill try rocker her next time.


You're such a post whore He Man  ;)


In all seriousness, thanks for posting this up.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: krista on September 30, 2008, 05:44:43 PM
Open office works as well as excel and is free open source software. openoffice.org (http://openoffice.org)  We're using it on all the computers here, both windows and linux.

:) Chris
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on September 30, 2008, 05:46:48 PM
I have open office running on my unbuntu, i just dont know how to use it.  :P
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: krista on September 30, 2008, 06:48:24 PM
 [laugh]

you know what's coming next (http://www.google.com/search?q=open+office+how+to+use+calc+and+make+a+graph&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a), right? This (http://www.openofficetips.com/category/charting/) and this (http://www.learnopenoffice.org/CalcTutorial22.htm) were results 2 and 3.

[drink]
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on September 30, 2008, 08:36:02 PM
hahaha, yea, i should of done that. ;D

My heads being crammed with a lot of stuff right now as far as learning how to use software goes  [bang]

Currently learning C++ and this stupid program called MATLAB, (of course for school, i would never learn this willingly!)

Do you ever try reading a book and read the page, get distracted, start reading all over again (and not realize it cause you werent even paying attention the first time you were reading it) and keep doing this for 10 minutes until you realize you havent turned the page yet?

I tried using excel to make a graph for a lab report last week.....after 5 mins, I went to my drafting table and just made one with my t-sqaure a 45. much easier. lol
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: krista on September 30, 2008, 11:32:38 PM
hahhaha OMG I managed to totally forget MATLAB!!!! My prof for that class was miserable, too. Hmmm, what was the other software?? VHDL?

I still don't know how I got through an EE degree. I'm wicked bad ADD and made jokes about it and how I couldn't read a book. I really couldn't; not a single book was of use to me in college unless it had pretty pictures. You should go find Driven to Distraction by Hallowell and give it a read. I did 3 years ago ... sure wish I would have 10 or more years ago!! ::) The 1st half of that book is great at helping someone see some of the ADD traps we can run into. (2nd half of the book is old news) imho, it's worth talking to a doc and trying meds if they suggest it. they sure helped me! :)

[coffee]  [moto]  [coffee]  [bang]  [beer]  [drink]  [wine]  [drink]  [drink]  [puke]

:) Chris
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 01, 2008, 12:09:22 AM
meds = no.

Wtf is ADD anyway. Im not gonna say i get easily distracted, i just have a hard time focusing on stuff i dont want to do. Im not sure of the other program, but MATLAB is one make the beast with two backsing annoying ass program. But it does solve a lot of math equations, but its not like you can lug your laptop with you on a math test and use it, so i really dont give 2 rats asses.

If I had to use it to do research, yea its great (and it is the only reason i am open to learning how to use it)


and I havent had medical insurance...well since i was born. lol I am MAJOR insomia problems. hell its 3 am right now, and i swear to god i thought it was 1am. I'm not the least bit tired either. bah, caught myself going of on a tangent there lol. Anywya, No insurance = cant afford doctors = no way to get my insomnia checked out or ADD (i doubt i have it lol)

i checked around for med insurance, the cheapest shit is 1800 a year. But they wont cover sleep problems so its WORTHLESS, great coverage if your in the ER after a serious bar fight. but other wise useless, the cheapest one that will cover sleeping issues and sleep therapy is over 3grand a year. [roll]

Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: krista on October 01, 2008, 06:19:00 PM
This $5 book will help answer the question (http://www.amazon.com/gp/offer-listing/0684801280/ref=pd_bbs_sr_olp_1?ie=UTF8&s=books&qid=1222909540&sr=8-1)

Basically, ADD is that you've got a racecar for a brain and it hates having its time wasted and seeks the next thing to work on. Which can then lead a properly normal and healthy mind to get anxiety, depression, both, etc etc. We follow predictable paths as people to cope with situations. I have learned that basically, whatever our first reaction to handle a situation is almost always the wrong thing to do. ;)  So at the young age of 36 or 37, I've kinda learned to think for a moment before going off on someone.

What I've found is that being ADD and unmedicated is kinda like being a meth user. Then ADD+meds is more like a normal person. But those are really lame generalizations. ADD is far more entertaining than that. Always thinking "try harder" and I can do just as good a job as others. Being mad at slackers who just don't "get it" and hating them for being a burden on society. Needing something more for it to be exciting ... like riding a motorcycle. Or anything racing. Or needing to add the ass-slappery in the bedroom. ADD can be fixating on something like a pit-bull on a bone until its done. Or it's avoiding a project even though it's there every day. Hating people that cut in line and/or you're quick to road rage. It's having shit strewn everywhere ... your room, your desk, etc, unless you actively work every day to make it orderly. Hard core bicyclists tend to be ADD.

It's pretty trippy ... just "life" amplified. The great, the good, the bad, and the ugly. No one thing really comprises ADD, it's more of having an excess of several normal human traits.

It makes me  [bang] a lot.

:) Chris
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: krista on October 01, 2008, 06:22:21 PM
Oh, and talk to real doctors as well as your school about medical care, alternatives for insurance, etc. There are plenty of opportunities for those without insurance who never give up. Many health care places discount for cash or credit card payment. Given what treatment has done for me, I'd work tooth and nail to continue treatment if I lost health insurance. Some part time places give health insurance to employees... Starbucks??

:) Chris
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 01, 2008, 11:19:22 PM
..... [roll] now your scaring me, becasue that is exactly how i am..... [bang]
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: Heath on October 02, 2008, 12:21:56 AM
I ordered that book I am curious what it has to say.  A lot of what you have said Chris describes situations I have. Several years ago I was diagnosed with ADD and put on Strattera.  I could focus a whole lot better while I was on it.  I stopped taking it though because it made me feel emotionless.  It's been a couple years I am still getting into the same ruts as I used to.   I have thought about taking it again, if they would prescribe it.  Not sure if I want to live with the side effects though.  Also the process to get the prescription took over 6 months.  hmm just some thoughts.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 02, 2008, 08:01:53 AM
i ending up buying the book too. Ahaha wish i had med insurance! I checked with my school already, they do offer it, and it is the $1800 low i was quoted and does not cover any type of sleep therapy. Not that i'd have $1800 on hand anyway. I would find a place to work part time, but i dont have time for it. I'm already stretched out with my sleeping issues and the craptastical load of work I have to do + my only way of revealing stress is in training at the gym.

I was up late last night (again, not tired, 18+ hours of being awake should lead to some form of sleepiness) doing MATLAB  [bang] and hit the sack around 4am, i had to wake up at 730am to get to class. Yes it is 11am right now. I slept past my alarm (my alarm remains on for 1 full hour). Normally speaking, i'd wake up in a heart beat with a shotgun in one hand ready to kill and a sandwich in the other even with only 3 hours of sleep.

and how the hell can you guys on on drugs that kill emotion? Its a personal problem to feel alive 50% of the time and to have a drug completely kill any chance of that is too much of a side affect.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: OwnyTony on October 02, 2008, 02:57:11 PM
Quote from: JBubble on September 30, 2008, 01:00:34 PM
You're such a post whore He Man  ;)


In all seriousness, thanks for posting this up.
I want to get in on this "Post Whore" action too
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: krista on October 02, 2008, 04:18:01 PM
Quote from: He Man on October 02, 2008, 08:01:53 AMand how the hell can you guys on on drugs that kill emotion? Its a personal problem to feel alive 50% of the time and to have a drug completely kill any chance of that is too much of a side affect.

Every drug is different for every person ... and even for the same person different times. That's what makes it all fun ... nothing is ever a "given". The biggest thing I have to remember to do is maintain awareness and not forget myself while writing php/html/mysql code for 22 hours... yup, one day I actually went into work Friday at 11am and left Saturday around 2pm. I did a few hours of work and then got all absorbed into the coding.

Yeah, my list of things that are exactly how you are? That's about the first third... there's twice that much more I didn't bother to bring up. I usually creep people out when face to face and we get to talking about it. :) I have an amazing sense of recall ... and apparently I have been blessed to have lived a lot of life's ADD mistakes. ::) :D

:) Chris
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 02, 2008, 04:26:04 PM
Quote from: chris on October 02, 2008, 04:18:01 PM
Every drug is different for every person ... and even for the same person different times. That's what makes it all fun ... nothing is ever a "given". The biggest thing I have to remember to do is maintain awareness and not forget myself while writing php/html/mysql code for 22 hours... yup, one day I actually went into work Friday at 11am and left Saturday around 2pm. I did a few hours of work and then got all absorbed into the coding.

Yeah, my list of things that are exactly how you are? That's about the first third... there's twice that much more I didn't bother to bring up. I usually creep people out when face to face and we get to talking about it. :) I have an amazing sense of recall ... and apparently I have been blessed to have lived a lot of life's ADD mistakes. ::) :D

:) Chris

hahaha are those mistakes listed in the book. Im gonna need a pen or some kind of highlighter for this one. I just spent (quite litterly since im missed class this morning) 7 hours doing C++ and MATLAB and only now am i stoping to get food (there were times where i wandered of on to the DMF and ebay to look for parts :p)



Ownytony, its $5.00 for a trip around the block.   [evil]
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: NAKID on October 04, 2008, 12:55:24 PM
How did you not run out of gas? I have completely run out before and couldn't put more than 3.2 gallons in...
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 04, 2008, 01:25:33 PM
no idea.

Mobil 87 Octane 10% Ethanol
Refilled at 98.7miles, light on at 98 miles
Refill Capcaity: 2.718
Roughly 50% highway


Mobil 87 Octane 10% Ethanol
Refilled at 114.8 miles, light on at 102.7miles
Refill capcaity: 3.406 gallons
Roughly 40% highway

That was the data for the previous fill up and the fill up that resulted in 3.406gals.
to be consistent, i always sit on the bike and fill up at around the same temp. (~70degrees). Ill fit up to the botton of the fill hole. rock my bike side to side and adjust till it hits that point. I havent done the math on how large the reserve from light on is yet. but it looks to be a good 1/2 gal.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: NAKID on October 04, 2008, 06:02:43 PM
Honestly, with that kinda mileage, the fill up is suspect.

Given the mileage you got on the previous tank, if you were getting the same mileage, you should have filled up with 3.18 gallons which sounds more reasonable.

My opinion? I wouldn't go back to that station any more, they are likely changing the calibration on the pumps. You're paying for more gas than you're getting....
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 04, 2008, 06:13:28 PM
Quote from: NAKID on October 04, 2008, 06:02:43 PM
Honestly, with that kinda mileage, the fill up is suspect.

Given the mileage you got on the previous tank, if you were getting the same mileage, you should have filled up with 3.18 gallons which sounds more reasonable.

My opinion? I wouldn't go back to that station any more, they are likely changing the calibration on the pumps. You're paying for more gas than you're getting....

What do you mean?

fill 1 was 36.3mpg
fill 2 was 33.7mpg

the difference between the two fill ups in terms of distance is 16.1miles. which in terms of a 34mpg avg, is .47 gallons. The difference between 3.406gal and 2.718gal is .688. which is close to .188 off from half a gallon.

the .188 difference is negligible based on my notes of 50% highway riding and 40% highway riding. that extra 10% makes a big difference when it was mostly idling and 1/2nd gear 5000-6000rpm city riding.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: NAKID on October 04, 2008, 06:42:01 PM
My mileage usually differs no more than about 1mpg regardless of 10% difference in highway mileage.

Also, the plastic tanks have been around since the 2005 MY and you are the first person I have heard that was able to put that much fuel in with no tank modifications.

I am not saying you are wrong, just that it's possible, given the high cost of gas, that the station has tampered with the machine...
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 04, 2008, 06:47:00 PM
hmm.. i see where you are going with this.

Personally speaking though, my bike varies from low 25-30mpg when doing city riding only, and my best highway mpg has been over 45mpg. the 10% im not doing on the highway means, im doing it on the city streets. And just to make sure everyone knows, its NYC, not like raleigh or something.

Im going to take your note into account and see if i can run it down to 3.406gals again, and at a different pump.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: NAKID on October 04, 2008, 07:00:08 PM
Wow, you are gettin pretty shittly mileage! I have yet to get less than 40MPG and I almost never do freeway. When I do exclusively freeway, I have gotten well into the 50's...
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 05, 2008, 12:53:40 AM
Quote from: NAKID on October 04, 2008, 07:00:08 PM
Wow, you are gettin pretty shittly mileage! I have yet to get less than 40MPG and I almost never do freeway. When I do exclusively freeway, I have gotten well into the 50's...

Man. wtf. Let me just try to explain how my ride goes. see if its similar to how your route goes.


Hop on the bike and i look up 1 ave and down 1 ave. deciding which traffic jammed lane i should take. I decide on the ghetto route with make the beast with two backsed up roads. more space for me. my top speed is 15mph. i ride for 4 miles in 1st gear, clutching it like a mad man. and revving my engine periodically to make sure im heard. from time to time, i get a break away and ill wheelie a short 30 feet. it takes about 20minutes for me to make this leg of the trip. Then i hop on the brooklyn bridge and now its smooth 25mph cruising, but somehow im a douche bag and i need to get ahead even though it would only save me 20 seconds at most.

jump on the FDR, maintain 70mph for 12miles and im done with this leg of the trip in another 15 mins (5 mins accounts for the it takes for me to get to hte school after i jump of the highway.

Now the way home.....3miles on the highway (henry hudson) then its the west side highway battle. its usually bumper to bumper to bumper. and im doing lots of reving, high beaming, and horn honking. its all local streets for about 10 miles until i hit the bridge. this part takes atleast 25-35minutes depending on how much god hates me that day. There are times where there are 3 trucks in front of me, an they are so jacke up that i cant lane split, so i just sit on my bike and litterly idle for about 3 whole minutes. Then over the bridge which is going about 3mph for 1 mile. then onto atlantic ave, which is a 1 mile long strip that takes me 5 minutes to cross. and then i have to speed at 60mph on a 30mph zone for 15 blocks so i dont get the studdering red lights (red, green, red, green) if i get caught on that, im make the beast with two backsed.

Total trip miles is ~31miles or something to that effect depending on how much i deviate from the route.

i just got my new valve guides (if they are even really in there) valve adjusted, and my semi-synthetic oil is only 2500miles old. new plugs. k&N open airbox and stock cored exhaust.

My 944carbed monster got 60+mpg.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: NAKID on October 05, 2008, 04:35:03 PM
Yeah, I think your fueling is off. There really is no reason, even with that make the beast with two backsed up commute, for your mileage ti be in the 20's....
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: He Man on October 05, 2008, 04:47:09 PM
Quote from: NAKID on October 05, 2008, 04:35:03 PM
Yeah, I think your fueling is off. There really is no reason, even with that make the beast with two backsed up commute, for your mileage ti be in the 20's....

lololol

the commute gives me 35mpg.
If i skipped the FDR/West Side highway portion of it, id break into the 27mpgs. Before my 6000mile service(minus valve adjustment), my bike was doing 22mpg with the above commute. Afterwords it shot up to 35mpg, but i can still creep into the 20's every so often if im doing all local traffic.

I just got my TPS reset and all that good stuff done less than 400miles ago....Still searching hte internet for a used PCIII to throw on my bike.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: ellingly on October 08, 2008, 05:38:05 AM
I can weigh in with
a) Excel help in regards to fuel economy. I have logged every fillup since I bought my S2R1k, which was new. The only riding it did before I got it was for the first fillup from the dealership (3km), after they put a splash and dash in to get it up the road.

b) MATLAB stuff... not so much, but I have had to use it a moderate amount in the past in my job.

c) Fuel economy stuff. Mine varies a fair bit, actually. It varies according to the seasons here in Australia, even with the O2 sensor unplugged.

d) Any medical thing... speak to someone who knows and hopefully cares. Might take a bit to find a decent doc in that regard though.

For fillups, I have run dry twice. Once on the road, where a 5L fillup from a jerry can and a 1km ride to a service station netted me a total fillup of about 12.8L; the second time I got 12.75L in and the bike coughed a bit, and stalled as I pulled up at a fuel pump. Yay for timing.

(http://www.wenga.net/ellingly/economy/s2r_1k_economy_km_20081008_small.png) (http://www.wenga.net/ellingly/economy/s2r_1k_economy_km_20081008.png)
Click image for a bit bigger version.
x-axis distance (km), y-axis L per 100 km travelled. Think of it as somewhat the inverse of mpg; higher on the graph is worse economy.

The three biggest peaks correspond to winter '06 (~ 1000km), '07 (~7500km) and '08 (~14000km). Latest peak, almost up to the worst economy for winter '08, is the 20k km service (which I did at 15k km, 2ish years into owning the bike). Fuel tank was drained and probably not completely filled back up again, hence worse economy. How much temperature change do we get here? Coldest I have ridden each winter has been in the order of -8 to -5°C; warmest 42°C. Basic ideal gas laws give an indication that would involve a mixture change of about 8%.

It's fairly consistent in terms of how it changes season to season. Winter 06 to winter 07 yielded an increase in the worst economy of about 0.5L/100km. I think this is going to be due to the engine bedding in and thus having less drag. Winter 08 was colder than '06 and '07, although more humid, which would negate some of the better economy you'd get from the engine bedding in better between 07 and 08. Of course, the bedding in trend is going to taper off - I tend to model it using an exponential function with a low and negative power. A cruder version might be a smoothed curve matching the worst economy in each winter, and also something based on the summer economies.

As for fuel effects - I've mainly tried different fuel brands, but I see no difference in a Mobil 98 RON vs. 95 RON fuel, at all.  At least, not a statistically significant increase after you remove both the running-in and seasonal variations in fuel economy. Haven't really tried other brands - in Australia, Shell have replaced most of their 95 RON pumps with E10 fuels; BP likewise do not have 95 RON. I could try 92 RON, but, I am concious of the warning in the manual which, at least for Aus, specifies fuels of 95 RON and above. I don't want to get into an argument that 92 RON (equiv to the US 87, if my sources are correct) because... I just don't.

As for my creditials in this sort of data analysis? I play with numbers all day, this is just another time series to me. I think I have a plausible reason for why things vary.

Finally, I'm happy for someone to argue with me that I should get better economy in winter cause there's more total oxygen going into the engine and thus can make more power. First points to consder are, sure, I agree on the power, but I don't tap into max power that often on most of my rides. Also, if the fuelling becomes leaner, it'll make less power unless it squirts in more fuel, ergo, use at least some more fuel to maintain the same power levels.
Title: Re: 3.8 gal plastic tank? 3.4 gallons possible?
Post by: Raux on October 08, 2008, 06:06:22 AM
that's just mad scientist stuff there. what a great fuel usage chart. i started keeping track of mine. then i got bored.  [bang]