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Search took 0.02 seconds. Search: Posts Made By: betasniper
Forum: Aerodynamics 01-29-2015, 02:21 PM
Replies: 6
Views: 1,589
Posted By betasniper
I used 2 zip-ties on the panel to attach to the...

I used 2 zip-ties on the panel to attach to the fuel tank aerobar thing (?) and one zip-tie to attach to the bumper exhaust hole. I had the suspension at full extension when zip-tieing to the bumper...
Forum: Aerodynamics 01-28-2015, 07:45 PM
Replies: 6
Views: 1,589
Posted By betasniper
My Insight's Belly Pan

Pics or it didn't happen:

http://ecomodder.com/forum/attachment.php?attachmentid=16843&stc=1&d=1422491875
http://ecomodder.com/forum/attachment.php?attachmentid=16844&stc=1&d=1422491875...
Forum: Aerodynamics 01-22-2015, 08:17 PM
Replies: 940
Views: 326,311
Posted By betasniper
Cool Surface sensitivity for drag reduction

https://static-content.springer.com/image/art%3A10.1186%2F2190-5983-4-6/MediaObjects/13362_2013_Article_21_Fig10_HTML.jpg
...
Forum: Aerodynamics 01-22-2015, 07:30 PM
Replies: 940
Views: 326,311
Posted By betasniper
https://www.youtube.com/watch?v=13_822qGv6A ...

https://www.youtube.com/watch?v=13_822qGv6A
4:55 is wind tunnel testing of the 1st gen insight which sweeps across the sides and top with a smoke trail.
Forum: Aerodynamics 07-07-2014, 06:15 PM
Replies: 12
Views: 4,550
Posted By betasniper
Whoops, 0039

Whoops, 0039
Forum: Aerodynamics 07-07-2014, 03:51 PM
Replies: 12
Views: 4,550
Posted By betasniper
http://ecomodder.com/forum/attachment.php?attachme...

http://ecomodder.com/forum/attachment.php?attachmentid=15331&stc=1&d=1404762558
Is this right? It is the first profile shape with a NACA 0040 plan.
Forum: Hypermiling / EcoDriver's Ed 02-11-2014, 01:37 PM
Replies: 77
Views: 18,984
Posted By betasniper
Vacuum gauge can also give you load. And on my...

Vacuum gauge can also give you load. And on my bsfc chart (http://ecomodder.com/wiki/index.php/Brake_Specific_Fuel_Consumption_(BSFC)_Maps#Saturn_1.9L_DOHC_Modified) I give approximate vacuum...
Forum: General Efficiency Discussion 12-19-2013, 10:20 PM
Replies: 302
Views: 367,541
Posted By betasniper
https://ecomodder.com/forum/attachment.php?attachm...

https://ecomodder.com/forum/attachment.php?attachmentid=25557&stc=1&d=1550804999

I cleaned the Saturn 1.9L BSFC (DOHC), included imperial units, Constant Horsepower curves, Engine Load %, and...
Forum: Aerodynamics 07-30-2013, 05:33 PM
Replies: 61
Views: 12,070
Posted By betasniper
How about a water tunnel? 1/10th (.42m) scale...

How about a water tunnel? 1/10th (.42m) scale would only require a 13 mph flow velocity to reach a Reynolds number of 2.5*10^6.
Forum: Off-Topic Tech 07-26-2013, 07:01 PM
Replies: 12
Views: 2,581
Posted By betasniper
Centripetal Acceleration: α = V^2 / R (In SI...

Centripetal Acceleration:
α = V^2 / R
(In SI units)
α = (67.65m/s)^2 / .19m
α = (4576.4m^2/s^2) / .19m
α = 24086m/s^2

Convert to g's
1g=9.81m/s^2
Forum: EcoModding Central 06-13-2013, 08:43 PM
Replies: 58
Views: 8,533
Posted By betasniper
Just saw this now, they weren't anticipating when...

Just saw this now, they weren't anticipating when the lights would turn green and seemed to piss off people. Engine off at lights requires a lot of attention. And a Really good battery. Though it...
Forum: EcoModding Central 06-08-2013, 06:27 PM
Replies: 258
Views: 67,796
Posted By betasniper
Made an Airforce styled logo with the Ecomodder...

Made an Airforce styled logo with the Ecomodder wrench:
Forum: Aerodynamics 06-06-2013, 08:51 PM
Replies: 8
Views: 1,970
Posted By betasniper
From my post #553 in Aero Streamlining Template...

From my post #553 in Aero Streamlining Template part C:
http://ecomodder.com/forum/attachment.php?attachmentid=13126&d=1370031338
(Closer than the table I made in post 551)
Forum: Aerodynamics 05-31-2013, 07:59 PM
Replies: 776
Views: 284,102
Posted By betasniper
See Tesla's post: And a fitting to a typical...

See Tesla's post:

And a fitting to a typical car:
http://ecomodder.com/forum/member-tesla-albums-template-picture4612-vehicle-boat-tail-sectional-profile-300mm-12-inch.jpg
Forum: Aerodynamics 05-31-2013, 04:21 PM
Replies: 776
Views: 284,102
Posted By betasniper
Here is a spline fitted to Aerohead's...

Here is a spline fitted to Aerohead's straightened drawing:
http://ecomodder.com/forum/attachment.php?attachmentid=13126&stc=1&d=1370031338
His hand drawn curve is very "ideal" as a spline...
Forum: Aerodynamics 05-31-2013, 02:38 AM
Replies: 776
Views: 284,102
Posted By betasniper
Yeah, It was about a 15° angle at the end for...

Yeah, It was about a 15° angle at the end for that one because the thickness was only 35% (Eppler 863). I posted that airfoil because that was the largest symmetric airfoil I found in that database....
Forum: Aerodynamics 05-19-2013, 08:26 PM
Replies: 21
Views: 7,021
Posted By betasniper
I have just made this table showing the percent...

I have just made this table showing the percent benefit of a boat tail as compared to a full boat tail. Enjoy

LENGTH CD ...
Forum: Aerodynamics 03-30-2013, 02:03 PM
Replies: 188
Views: 251,311
Posted By betasniper
Made a Mirrored Version as well as darkened the...

Made a Mirrored Version as well as darkened the percentage lines
http://ecomodder.com/forum/attachment.php?attachmentid=12800&stc=1&d=1364666671
...
Forum: Aerodynamics 03-30-2013, 12:53 PM
Replies: 188
Views: 251,311
Posted By betasniper
http://ecomodder.com/forum/attachment.php?attachme...

http://ecomodder.com/forum/attachment.php?attachmentid=12797&stc=1&d=1364626895
Made a New template with only the rear contour, ground plane, and percentage marks. Fits the other template almost...
Forum: Aerodynamics 03-30-2013, 03:05 AM
Replies: 776
Views: 284,102
Posted By betasniper
Re-cleaned Template Outside curve only

http://ecomodder.com/forum/attachment.php?attachmentid=12797&stc=1&d=1364626895
Did this in about 2 hours. Straightened the Original template in solidworks, Made a spline, Exported spline into...
Forum: The Lounge 03-29-2013, 11:40 PM
Replies: 10
Views: 4,699
Posted By betasniper
Blind Spots are a Myth

There are no such things as blind spots, just badly adjusted mirrors.

http://ecomodder.com/forum/attachment.php?attachmentid=12796&stc=1&d=1364613243
(img from Car & Driver...
Forum: Instrumentation 03-21-2013, 12:36 AM
Replies: 5
Views: 2,556
Posted By betasniper
Saturn SW2 Gauge Pod

I wanted a gauge pod that didn't "obstruct" my view so I decided to make my own out of scrap material I had around.

This Is how I made my gauge pod for my Saturn SW2 A pillar:


Turning scrap...
Forum: Introductions 03-17-2013, 12:15 AM
Replies: 26
Views: 3,132
Posted By betasniper
started working on the vacuum gauge mount for the...

started working on the vacuum gauge mount for the a pillar:

Turning scrap ABS tube on lathe to outside diameter of the gauge:...
Showing results 1 to 23 of 23

 
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