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Forum: General Efficiency Discussion 01-04-2013, 06:40 PM
Replies: 10
Views: 4,907
Posted By HypermilerAX
Thanks Piwoslaw for pointing out to my thread. ...

Thanks Piwoslaw for pointing out to my thread.



Well, here in France, a lot of people still drive in AXs. But I don't think it was ever distributed in the US, thus the 'secret' status of this...
Forum: Aerodynamics 12-30-2012, 10:58 PM
Replies: 50
Views: 8,270
Posted By ryannoe
Got a little work done today and the results may...

Got a little work done today and the results may be shocking!

The flow on the back of the Prius is NOT attached.

My partner and I have the frontal and bottom of the vehicle left to tuft, but...
Forum: Hybrids 11-24-2012, 10:43 AM
Replies: 73
Views: 21,567
Posted By Daox
Daox's Grey 2004 Prius

http://ecomodder.com/forum/attachment.php?attachmentid=11930&stc=1&d=1353770994

As I mentioned in the my black 2004 Prius build thread...
Forum: Aerodynamics 10-02-2012, 09:33 AM
Replies: 22
Views: 9,142
Posted By MetroMPG
Tuft testing video: Honda Insight (2000) front wheel well design

http://forkenswift.com/album/24-shopped-profile-grass-med.jpg

I've always been intrigued by the effort Honda put into the bodywork around the front wheel well of the 1st generation Honda Insight....
Forum: EcoModding Central 09-20-2012, 11:05 PM
Replies: 7
Views: 3,725
Posted By gone-ot
...short answer: yes, some tires "squish" more...

...short answer: yes, some tires "squish" more than others so their actual rotating "radius/diameter" under load & speed is LESS than their physical radius/diameter!

...for instance, the "common"...
Forum: EcoModding Central 06-17-2012, 06:16 AM
Replies: 23
Views: 5,908
Posted By CapriRacer
Tire size? Larger is better - and you measure...

Tire size? Larger is better - and you measure that by load carrying capacity (Load Index). But the effect is small, so a sacrifice in this area won't have any major effects.

LRR? Beware - that...
Forum: EcoModding Central 06-16-2012, 08:38 PM
Replies: 191
Views: 23,910
Posted By Frank Lee
One problem with the U.S. market is, it's...

One problem with the U.S. market is, it's extremely fickle. Gas goes up high "enough" and suddenly there's interest in smaller vehicles with manual transmissions (that were all but ignored...
Forum: EcoModding Central 06-05-2012, 03:39 PM
Replies: 43
Views: 18,926
Posted By evilskillit
In the following NHTSA tests higher inflation...

In the following NHTSA tests higher inflation resulted in shorter braking distances, tho hyperinflation was not tested. Also worth noting the distances in most cases were only a few feet.
TIRE...
Forum: Hybrids 01-13-2012, 12:48 PM
Replies: 34
Views: 7,512
Posted By Daox
My prius is 8 years old and is about as far away...

My prius is 8 years old and is about as far away from needing a new pack as the day it rolled off the lot. Consumer reports recently tested their first gen (01 I think) Prius recently which has the...
Forum: General Efficiency Discussion 12-04-2011, 07:23 PM
Replies: 62
Views: 10,636
Posted By Gone
Just look at the histograms and you can see that...

Just look at the histograms and you can see that there are no systematic abuses of the MPG data. Unless you want to postulate that some conspiracy theorist (Honda, Hyundai) have hired all fuelly...
Forum: Hybrids 11-22-2011, 11:15 AM
Replies: 17
Views: 8,310
Posted By jamesqf
Not to mention that if you warm up the engine...

Not to mention that if you warm up the engine quickly, you'll be getting cabin heat for free.

One of the several reasons that I don't really like the Prius design is the fact that it has a pure EV...
Forum: EcoModding Central 11-05-2011, 05:26 PM
Replies: 17
Views: 16,379
Posted By Ptero
Thanks for pointing that out. I had measured the...

Thanks for pointing that out. I had measured the new fronts vs. the worn rears and was unable to tell any difference. Below, I'm using the specs supplied by TireRack for the OEM ContiContac Pro...
Forum: EcoModding Central 10-25-2011, 08:28 PM
Replies: 5
Views: 1,797
Posted By Ladogaboy
Yeah, that's why I'm not overly critical of the...

Yeah, that's why I'm not overly critical of the traction. You'd have to be intentionally reckless for something to happen, and that's why I'm still giving these tires a big :thumbup: so far.
Forum: EcoModding Central 10-12-2011, 07:44 PM
Replies: 50
Views: 25,874
Posted By MetroMPG
Moral of the story: obviously... tire choice can...

Moral of the story: obviously... tire choice can have an enormous impact on vehicle efficiency!

Stuff I learned:


I was surprised how much better the RE92's were - not only did they have the...
Forum: EcoModding Central 12-14-2009, 01:21 PM
Replies: 120
Views: 180,005
Posted By MetroMPG
Arrow How to properly test modifications (AKA: don't believe every MPG claim you read)

Here on EcoModder we see a lot of claims made about the effectiveness (or lack of effectiveness) of specific modifications. It's an understatement to say not all claims are made equal.

Just...
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