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Forum: The Lounge 11-01-2020, 11:58 AM
Replies: 28
Views: 3,968
Posted By jakobnev
Time for everyone to get chillpilled. (re: politics flaming up on the forum)

Relax, grab a beverage, whatever:

https://www.youtube.com/watch?v=rE3j_RHkqJc
Forum: Aerodynamics 10-14-2020, 11:15 AM
Replies: 63
Views: 6,005
Posted By MetroMPG
Interpersonal conflict in this subforum

Tim (Daox) and I made the unhappy decision to ban both JulianEdgar and aerohead this morning. It's a temporary penalty; hopefully cooler heads will prevail.

Thank you to the multiple members who...
Forum: Forum News & Feedback 04-21-2020, 02:43 PM
Replies: 121
Views: 9,027
Posted By MetroMPG
Exclamation Please cut out the political chatter

A message from Tim & me:

Please cut out the political chatter in the forum. It's not what EcoModder is here for.

Thanks.
Forum: The Lounge 04-03-2020, 07:09 PM
Replies: 270
Views: 19,944
Posted By jjackstone
Please get the politics out of this thread. I see...

Please get the politics out of this thread. I see enough of it everywhere else in the news. Thanks.
JJ
Forum: EcoModding Central 10-15-2018, 05:51 AM
Replies: 18
Views: 2,108
Posted By BdK9001
@ D.O.G. Usually with a button-starter you can...

@ D.O.G. Usually with a button-starter you can switch off only the engine by a short press, or switch off the entire car by a long press.

Nobody told me the first time I got in a car with one of...
Forum: Motorcycles / Scooters 09-01-2018, 01:31 PM
Replies: 31
Views: 6,990
Posted By Daschicken
I forgot about the flow restriction! My carb sync...

I forgot about the flow restriction! My carb sync set already had included restrictors, I’ll have to figure out as way to restrict this one, maybe just a zip tie constricting the line?

Maybe the...
Forum: Aerodynamics 05-08-2018, 10:18 PM
Replies: 4
Views: 1,234
Posted By gone-ot
Coastdown CdA estimation

See pages 21-23: https://www.escortradar.com/pdf/gt2manual.pdf
Forum: General Efficiency Discussion 07-08-2016, 06:58 PM
Replies: 36
Views: 28,353
Posted By matt36415
https://cumminsengines.com/uploads/docs/cummins_se...

https://cumminsengines.com/uploads/docs/cummins_secrets_of_better_fuel_economy.pdf

This is generally interesting but page 30 (check the index) has a paragraph on rain and mpg
Forum: Aerodynamics 01-23-2016, 04:00 PM
Replies: 6
Views: 1,462
Posted By aerohead
Chrysler Airflow

Found this online.Pretty fun!
https://www.youtube.com/watch?v=AG55Bf9nWHk
Forum: General Efficiency Discussion 03-10-2015, 06:01 PM
Replies: 6
Views: 1,509
Posted By spacemanspif
Taken from here: WHY IS MOIST AIR LESS DENSE THAN...

Taken from here: WHY IS MOIST AIR LESS DENSE THAN DRY AIR AT SAME TEMPERATURE (http://www.theweatherprediction.com/habyhints/260/)

I knew the law but never knew why...but now we all know :)
Forum: Motorcycles / Scooters 02-07-2015, 03:57 PM
Replies: 20
Views: 9,714
Posted By hamsterpower
fixed Edit: was fixed. Now it's been removed...

fixed

Edit: was fixed. Now it's been removed from server.
Forum: Hypermiling / EcoDriver's Ed 06-03-2013, 04:35 PM
Replies: 8
Views: 3,911
Posted By gone-ot
One "rule-of-thumb" is about 70% of the...

One "rule-of-thumb" is about 70% of the max-torque rpm, so roughly 2,000 rpm:

1,960 = 0.7 × 2,800 ~ 2,000 rpm
Forum: Aerodynamics 02-06-2013, 07:04 PM
Replies: 2
Views: 1,503
Posted By Tesla
Cooling Fan aerodynamics.

Just stumbled on this,
Davies Craig radiator fans, scroll down to the bottom of the page they have a little discussion of curved vs straight blades, tripping the boundary layer and using winglets on...
Forum: General Efficiency Discussion 12-23-2012, 08:30 AM
Replies: 22
Views: 4,836
Posted By NeilBlanchard
Let me add another important possibility - and...

Let me add another important possibility - and that is tunable suspension. It is likely (though possibly not) true that low rolling resistance means a stiff tire, with the only large scale flexing...
Forum: DIY / How-to 12-09-2012, 11:26 PM
Replies: 202
Views: 65,730
Posted By myrefugeisintheLord
Kill Switch (EOC): Where did you install your activator? And what did you use?

Lets get a compilation of some PICTURES! :) And help others get some ideas for their setup. If you have a How To thread, or helpful post, it would be good to add a link to it.

Edit: Oh, and folks,...
Forum: Hypermiling / EcoDriver's Ed 08-02-2012, 06:34 PM
Replies: 27
Views: 6,403
Posted By sheepdog 44
Use (Map Bike Rides with Elevation Profiles,...

Use (Map Bike Rides with Elevation Profiles, Analyze Cycling Performance, Train Better. Ride With GPS (http://ridewithgps.com))

You have to create an account but it's free. It works like google...
Forum: Forum News & Feedback 07-17-2012, 09:59 AM
Replies: 609
Views: 106,356
Posted By MetroMPG
Pete - it shows up correctly (up to date) for me...

Pete - it shows up correctly (up to date) for me too.

Dave - fixed that line break mistake.
Forum: Forum News & Feedback 06-13-2012, 03:34 PM
Replies: 36
Views: 6,261
Posted By Piwoslaw
I'm the best in the Piwoslaw fuel economy class:D...

I'm the best in the Piwoslaw fuel economy class:D
But how do I compare to someone else, who drives a totally different vehicle, in a totally different part of the world? Am I trying harder than...
Forum: Forum News & Feedback 06-13-2012, 02:31 PM
Replies: 36
Views: 6,261
Posted By Diesel_Dave
Bottom line is that no system is completely fair....

Bottom line is that no system is completely fair.

There are pros and cons to every conceivable way. The whole "% over EPA" metric is designed to represent a "% over baseline". If everybody's...
Forum: Forum News & Feedback 06-13-2012, 12:24 PM
Replies: 36
Views: 6,261
Posted By euromodder
I don't like the %-over EPA as it derates...

I don't like the %-over EPA as it derates European members when they use their NEDC values.

With Hägar I'm a measly 11% over NEDC, and don't even qualify as a hypermiler.
Yet beating the NEDC in...
Forum: Hypermiling / EcoDriver's Ed 04-29-2012, 02:56 AM
Replies: 2
Views: 2,018
Posted By slowbro
Calculating Combined Rating

I just wanted to make a general announcement because I've seen this mistake being made a lot lately. Calculating the combined fuel economy rating for your car is not as simple as (.55*city...
Forum: EcoModding Central 02-15-2012, 01:18 PM
Replies: 32
Views: 6,550
Posted By Diesel_Dave
Okay, here you go: ...

Okay, here you go:
http://ecomodder.com/forum/member-diesel_dave-albums-data-picture3565-temp2.png

40 deg F change results in about a 20% change in mileage. So mileage changes 1% for every 2 deg...
Forum: Aerodynamics 12-21-2011, 04:15 PM
Replies: 41
Views: 11,445
Posted By 3-Wheeler
Coast Down Testing - 2000 Honda Insight

There have been those posting on EcoModder, discussing how people were able to determine not only the Cd of their vehicle, but also the effects of large and small modifications.

It was with this...
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