MotoHouston.com MotoHouston.com
Register Members List Member Map Media Calendar Garage Forum Home Mark Forums Read

Go Back   MotoHouston.com > General Discussion > General Discussion (Moto Related)
Forgot info?

Welcome to MotoHouston.com! You are currently viewing our forums as a guest which gives you limited access to the community. By joining our free community you will have access to great discounts from our sponsors, the ability to post topics, communicate privately with other members, respond to polls, upload content, free email, classifieds, and access many other special features. Registration is fast, simple and absolutely free, join our community!

Register Today!

If you have any problems with the registration process or your account login, please contact us.


Like us on Facebook! Regular shirt GIVEAWAYS and more

Advertisement

Reply
Share This Thread: 
Subscribe to this Thread Thread Tools
Old 04-06-2011, 12:55 PM   #21
GAU-8
official thread ender.
 
Join Date: May 2009
Feedback Rating: (0)
Posts: 5,472

Experience: 10+ years
Trackdays: 1











Quote:
Originally Posted by Higham View Post
You also look like a dumbass driving down the street in full tuck at 30 mph.
I saw one of HPD finest in this position yesterday..with full windscren :P



As for the testing with hypermiling, it is something I would want to try (both cage, and bike) but.

1. Bike won't be rideable for a while, as I am slowly rebuilding it.

2. My van is power steering, and power brakes. Going to assume here that would be a lot more difficult, coasting/navigating sans power. :P


For those attempting to try it, thx for result, and input. (Especially) on the bikes. As noted, there are big differences with coefficients,weight and such. That's why I wondered how much of a difference can it be between let's say

-fuel injected large/heavy cruiser
-carbed cruiser

And

FI minimalist sportbike (say ninja 250)
Carbed ninja 250


Or just seeing what the difference is between a track day, then a (well excercized) hypermiling day, for the same machine..
GAU-8 is offline   Reply With Quote
Advertisement
Old 04-06-2011, 12:58 PM   #22
Stang Man
being rude
 
Join Date: Dec 2010
Location: Northside Houston
Feedback Rating: (1)
Posts: 1,094

Experience: 8 years

Bike(s):
2003 Z1000
2005 KTM 625 SMC(sold)
1994 ZX-11(sold)
1983 Honda Nighthawk(sold)

Member Garage





Quote:
Originally Posted by Higham View Post
Fixed
It gets hot in Texas what do you expect? Plus we all know the ladies love a nice tan buttocks on their men!
__________________
2003 Kawasaki Z1000
1989 Ford Mustang GT: 331, AFR 185's, full MM suspension, Cobra brakes
1991 Mazda RX-7: 5.0 V8, 24 Hours of Lemons racecar
Family bikes: V-Star 1100, Harley 883, KLR-650
Stang Man is offline   Reply With Quote
Old 04-06-2011, 01:22 PM   #23
bluewave18
Safety Third
 
bluewave18's Avatar
 
Join Date: Oct 2007
Location: S.E.
Feedback Rating: (0)
Posts: 34,121

Experience: 10+ years

Bike(s):
08 Busa
03 XR 50








Sounds like you will wear out parts like the starter and clutch sooner to save a minimal amount of gas as well as risk your . I think it will use more gas to start it than it would to run for the little time you kill it.
bluewave18 is offline   Reply With Quote
Old 04-06-2011, 01:58 PM   #24
spartandude
Custom User Title
 
spartandude's Avatar
 
Join Date: Apr 2009
Location: Somewhere near houston, ish.
Feedback Rating: (1)
Posts: 1,947

Experience: 4 years

Bike(s):
750 honda shadow spirit




Member Garage





I tried hypermiling; Cliff's notes: not worth it.

Bike; my brand new VT600 (Honda shadow). No windscreen.
I tried:
1) +5 to -10 of the speed limit pulse/coast in the sticks between the causeway and nasa.
2) Restart was with popping clutch.
3) Shut off at each of my four lights if red.
4) drafting any slow truck (pickups have a surprising amount of disturbed air)
5) leaving massive amounts of space in heavy traffic so I rarely had to use the brakes (this really cagers off, and gets people pulling in on you a lot more).
6) full tuck on the cruiser at anything over 45 unless drafting (appearances have really not been a care for me)
7) putting my legs on my front turn signals or passenger peg to reduce frontal area.
8) cruising at -5 mph in normal traffic (far right lane of course)
9) glacially slow acceleration

All of this served up the following results:

1) best run in Houston rush hour from Galveston to the med center =73mpg
2) lots of off drivers
3) I was off at going so slow
4) I was annoyed at having to restart
5) I was worried about dieing when my engine was off

Conclusion: I decided that 58 mpg at 65 - 70 mph with WOT acceleration was just fine and dandy. In case you don't have a calculator handy that result is a bit over 25% increase in gas mileage. I ride +25K miles a year so that would be a significant savings, but I feel not worth my sanity or life.

Quote:
Originally Posted by sandbarmark View Post
If you were wanting to hypermile a bike I think it would be a lot harder than in a car to get decent results.

One of the biggest gains with automotive hypermiling is using the coasting technique where you pick two target speeds (maybe one that is 10mph above and another 10mph below the speed limit), accelerating smoothly to the upper target speed, shifting to neutral, turning off the vehicle, and coasting down to the lower target speed. Once you reach that lower target, you start the vehicle up again, wash, rinse, repeat.

This works well in cars where the cD (coefficient of friction) is lower compared to a bike. Also, with cars weighing significantly more than a bike, the inertial energy of the car will make it easier to cut through the air as there is more mass thus more storable energy.

Since a bike weighs less there is less inertial energy and the friction caused by the air will slow you down a lot quicker. Going from 80mph to 60mph without the brakes happens a lot quicker on a motorcycle than it will in a mid-sized sedan or even a compact car.

So, even though you may see increases in fuel consumption, the percentage of that increase will be much smaller than you would see in a car.
True. My pulse/coast cycle felt really quick.

Quote:
Originally Posted by bluewave18 View Post
Sounds like you will wear out parts like the starter and clutch sooner to save a minimal amount of gas as well as risk your . I think it will use more gas to start it than it would to run for the little time you kill it.
Wear is significantly increased, but popping the clutch to restart from a pulse/glide does save gas.

Hoped this helps.
__________________
Quote:
Originally Posted by kibitzer View Post
My left eye turned into my skull and attempted to eat its way through my brain to escape the visual assault of stupidity. Awww , it just got to my Primary Motor Cortex. I can feeeeeeeeeeelllkknowqenf npnvpjw jwq uqvrp
spartandude is offline   Reply With Quote
Old 04-06-2011, 03:17 PM   #25
FJRmgm
Senior Member
 
Join Date: Jan 2007
Location: Omaha, Arkansas USA Motorcycling Paradise
Feedback Rating: (0)
Posts: 1,995

Experience: 10+ years

Bike(s):
Yamaha FJR 1300
Honda CBR 954RR
Yamaha WR250R







55.5 mpg on the FJR when running 40-50 mph in Big Bend last week..
FJRmgm is offline   Reply With Quote
Old 04-07-2011, 10:05 AM   #26
seratt
Senior Member
 
seratt's Avatar
 
Join Date: Sep 2007
Location: Baytown, TX
Feedback Rating: (0)
Posts: 1,211

Experience: 10+ years

Bike(s):
88' Super Magna




Member Garage





I'm too lazy to do all this. I dunno, just seems like a whole lot of extra work when driving/riding.
__________________
"You're dead, this is the afterlife, and I'm " -- Q
seratt is offline   Reply With Quote
Old 04-07-2011, 11:04 AM   #27
Stromtrooper
Trust me I know what I'm
 
Stromtrooper's Avatar
 
Join Date: Oct 2010
Location: West Houston
Feedback Rating: (0)
Posts: 973

Experience: 2 years

Bike(s):
'08 Wee-Strom DL650
Trek OCLV 5200



Member Garage





going back and forth on Wetsheimer from HW6 to almost downtown I get about 52mpg. Highway riding at 65-70 gives me the same. thats on a 650 v-twin
Stromtrooper is offline   Reply With Quote
Reply


Thread Tools

Advertisement


All times are GMT -5. The time now is 03:08 PM.


MotoHouston.com is not responsible for the content posted by users.
Privacy Policy