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Posts Made By:
christofoo
Forum:
Aerodynamics
12-26-2014, 10:34 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Damage and repair of the AHB (Aero Hitch Box)
I had a bad feeling about letting my wife use the car and AHB without me around. In hindsight, I tried to train her on the latch, but didn't put any emphasis on how unfreindly it was. It was possible...
Forum:
Aerodynamics
12-26-2014, 10:07 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Quick updates
Some quick updates:
I'm contemplating moving overseas for a few years for a job opportunity. If so, most likely the removable mods will go into storage and I'll sell the car.
Magnetic...
Forum:
Aerodynamics
08-12-2014, 12:43 PM
Replies:
82
Old square sedan kammback
Views:
30,906
Posted By
christofoo
So happy to see my project cited! (#18) By...
So happy to see my project cited! (#18)
By the way, our sedan-to-Kammback-converters need to be able to resist several dozen pounds of lateral force from side-winds. I'm adding some lateral...
Forum:
EcoModding Central
04-29-2014, 03:19 PM
Replies:
48
Project: modding sixth gen Corolla sedan on a budget
Views:
14,344
Posted By
christofoo
If I had time I would redo the grill and both...
If I had time I would redo the grill and both skirts in Al (passenger side went MIA).
(Also the passenger mirror is back on, UT inspection requires the mirror if the rear window is tinted. Doh.)
...
Forum:
Aerodynamics
04-29-2014, 02:40 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
It was a mistake to walk away from something I...
It was a mistake to walk away from something I had made with my hands, when so much of it was salvageable. But that wasn't clear until I had worked out what the solution to the side-wind would look...
Forum:
Aerodynamics
04-28-2014, 03:21 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Yesterday's successfull Kamm-back rescue mission
My wife was thoughtful enough to write down a mile-marker. (Would have saved myself some walking if I'd just spent a second to record my GPS position in the first place.)
(I didn't think I would...
Forum:
Aerodynamics
04-28-2014, 02:52 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
I'd love to hear more about your NTREG...
I'd love to hear more about your NTREG presentation - are you a member? Have any TX policy-makers been attracted to the group? Any comments you get on the presentation would interest me. Naturally I...
Forum:
Aerodynamics
04-23-2014, 02:42 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Kammback disaster
First off, our Southern Utah trip had great mileage - 48, 43, and 45 MPG, for a trip average of 45.6 MPG over 1111 miles. Not bad! This trip always has lower speeds than my other long-hauls, and a...
Forum:
Aerodynamics
02-08-2014, 01:29 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Just remember you can't trust the magnet gasket...
Just remember you can't trust the magnet gasket for security. Gotta have some clips in there for sidewind forces, as well as bumpy roads. But it does work really well to get a clean leading edge. I'm...
Forum:
Aerodynamics
02-08-2014, 01:16 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Boat-tail removed
By the way, the tail is off for the winter.
http://ecomodder.com/forum/member-christofoo-albums-kammback-picture5908-boat-tail-removed.jpg
The AHB gets in my wife's way (she's shorter). The...
Forum:
Aerodynamics
02-08-2014, 01:10 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
More tufting
Did some tufting with the driver's side wheel skirt in place - just wanting to see where I'm at again.
...
Forum:
Aerodynamics
02-08-2014, 12:55 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Pizza pans
Two of my half-moon 'racing' disks went missing this year, before I took the other two off and put them in the trunk. The reason is that I got some snow tires on some new rims in November, and the...
Forum:
Aerodynamics
02-08-2014, 12:38 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Rear wheel skirts
I have a pretty long list of mods this car still needs... here are the rear wheel skirts I did last month:
The first edition was designed with clearance to spare on the moon disks, so it has way...
Forum:
EcoModding Central
01-09-2014, 08:17 PM
Replies:
50
HID bulbs in Halogen lamps fail govt test
Views:
9,653
Posted By
christofoo
mcrews is referring to illuminance, others are...
mcrews is referring to illuminance, others are referring to luminous flux, is that not so?
Illuminance can vary across the field (non-uniformity), and at a given point is a function of luminous...
Forum:
EcoModding Central
01-03-2014, 01:00 PM
Replies:
50
HID bulbs in Halogen lamps fail govt test
Views:
9,653
Posted By
christofoo
As the driver of an irresponsible mod one may not...
As the driver of an irresponsible mod one may not necessarily notice the low beam is not in fact low. If driven primarily in urban settings it may seem to not matter much (streetlights de-emphasize...
Forum:
Aerodynamics
11-16-2013, 05:31 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Full boat-tail
The gap-filler window is on the road, although I might need to remove it for the road-trip at the end of this month, not sure yet. However, here's the car in full boat-tail-configuration:...
Forum:
Aerodynamics
10-06-2013, 01:19 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Thanks for all the encouragement. I...
Thanks for all the encouragement.
I believe what's shown is 0.4mm (1/64") neoprene rubber, but that stuff 'feels' a little too thin, I'm worried it would wear through or involve excessive...
Forum:
Aerodynamics
10-06-2013, 02:10 AM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
I meant 3 articulating pieces - Kamm, trunk,...
I meant 3 articulating pieces - Kamm, trunk, hitch-box-lid.
You have good ideas, though in this case I happen to favor my idea (or maybe it was a coworker's idea, sort of):
Using a hinged,...
Forum:
Aerodynamics
10-01-2013, 11:40 AM
Replies:
46
100 mph & 32 mpg
Views:
7,845
Posted By
christofoo
Phil, is there a mistake in your 32MPG figure? I...
Phil, is there a mistake in your 32MPG figure? I know you're using a formula I'm not familiar with, so I'm just asking you to double-check, but I think you should get more MPG with a 2.0L under that...
Forum:
Aerodynamics
09-24-2013, 08:24 PM
Replies:
22
Does a tailgater fill your wake? :)
Views:
3,791
Posted By
christofoo
Back to the OP's original question, tailgaters...
Back to the OP's original question, tailgaters should never be viewed as doing you a favor, aero or otherwise.
In aerodynamics, although the trailing car sees some benefit at...
Forum:
Aerodynamics
09-22-2013, 12:50 PM
Replies:
17
Review of OpenFOAM: free CFD
Views:
10,164
Posted By
christofoo
Review of OpenFOAM: free CFD
OpenFOAM has been mentioned once or twice in this forum before, but it hasn't been given a fair shake. It is a rather general-purpose open-source numerical solver, with capabilities ranging from...
Forum:
Aerodynamics
09-16-2013, 12:08 AM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Early Kammback frame
I've been overly busy, but finally got a decent start on the "Kammback".
A little teaser (wood and PVC are just here for setup):...
Forum:
Aerodynamics
08-22-2013, 02:26 PM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Re-tufting the lid-top radius, view of the underside
I wanted to get a better view of the effect of the box lid-top radius, this time I added a piece of cardboard over the foam to recreate a sharp edge with the same tangents as the radius version, that...
Forum:
Aerodynamics
08-19-2013, 04:26 PM
Replies:
64
Better Aerodynamics for the Corolla
Views:
25,236
Posted By
christofoo
I have never had a CEL with my 89 no matter what...
I have never had a CEL with my 89 no matter what (weird), but I think for other reasons that it's a likely candidate for O2 and cat (and carburetor rebuild).
(For me the carb is probably first,...
Forum:
Aerodynamics
08-13-2013, 02:03 AM
Replies:
222
Project: ECOfamily Civic and its Aero Hitch Box / Boat Tail
Views:
87,529
Posted By
christofoo
Radius box lid to defeat locked vortex?
I'm glad you're seeing the same things I am. Maybe I'm learning something. :D
(I have another thought on the diffuser though... when I remember to actually do it, I want to put up a photo of the...
Showing results 1 to 25 of 73
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