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Search took 0.12 seconds. Search: Posts Made By: CigaR007
Forum: Aerodynamics 04-03-2024, 07:21 PM
Replies: 5
Views: 270
Posted By CigaR007
Those openings provide high pressure fresh air...

Those openings provide high pressure fresh air into the cabin. Blocking them might put additional load on the blower motor.
Forum: Aerodynamics 03-31-2024, 05:50 PM
Replies: 12
Views: 1,145
Posted By CigaR007
Making some progress on the arduino code. ...

Making some progress on the arduino code.

Here is a summary of the code :

Button Press: If the button is pressed, the servo motor angle is adjusted based on the current angle (0, 45, 90...
Forum: Aerodynamics 03-28-2024, 06:47 PM
Replies: 12
Views: 1,145
Posted By CigaR007
Work in progress

Turns out that an input can be set to high-impedance; so it should be ok.

Cleaned up a bit of the wiring and made more permanent circuit board to accommodate the servo, LCD display and various...
Forum: Aerodynamics 03-21-2024, 04:04 PM
Replies: 12
Views: 1,145
Posted By CigaR007
From what I have seen and read thus far, there...

From what I have seen and read thus far, there does not seem to be fail-safe OPEN mechanism in current grille shutters. I could be wrong though...In their OEM state, all they do is throw a CEL code...
Forum: Aerodynamics 03-19-2024, 02:44 PM
Replies: 12
Views: 1,145
Posted By CigaR007
Arduino UNO-based Active Grille Block

I have been working on integrating an active grille into the fibreglass partial grille block.

I went the COTS (commercial-off-the-shelf) route as to speed up the construction. The grille vane...
Forum: EcoModding Central 12-08-2023, 04:08 PM
Replies: 8
Views: 510
Posted By CigaR007
Very case specific since I have a hybrid vehicle,...

Very case specific since I have a hybrid vehicle, but I favor DFCO in shorter and steeper downhills to top off the HV battery pack. If battery pack reaches 75% SOC, I switch to Neutral coast down.
...
Forum: EcoModding Central 11-22-2023, 05:29 PM
Replies: 30
Views: 1,316
Posted By CigaR007
I also bought Blizzak WS90 this fall and noticed...

I also bought Blizzak WS90 this fall and noticed a sharp drop in fuel economy compared to my previous Michelin X-Ice xi3.

They do seem to perform a bit better in wet snow compared to the Michelin...
Forum: Aerodynamics 11-13-2023, 05:42 PM
Replies: 44
Views: 1,691
Posted By CigaR007
Lightyear One engineers used a custom rake with...

Lightyear One engineers used a custom rake with pressure probes to measure the wake. They also installed one near the rear quarter.

https://www.youtube.com/watch?v=CI8BkK3ycYo
Forum: Aerodynamics 11-01-2023, 01:08 PM
Replies: 5
Views: 458
Posted By CigaR007
Here's a tuft testing for the side mirrors I did...

Here's a tuft testing for the side mirrors I did on my car with two configurations; normal and folded. Hard to quantify gains, if any.

https://m.youtube.com/watch?v=eDh42Cde7ls
Forum: Instrumentation 10-14-2023, 01:12 PM
Replies: 5
Views: 1,206
Posted By CigaR007
That would be the ideal scenario. Problem is...

That would be the ideal scenario. Problem is finding a flat and long section of road...

I inquired with a local testing ground facility (oval circuit) and they do not grant access to the general...
Forum: Instrumentation 10-13-2023, 11:41 PM
Replies: 5
Views: 1,206
Posted By CigaR007
Decided to log multiple sensors on today's trip....

Decided to log multiple sensors on today's trip. Below is a scatter chart representing the fuel consumption vs the ignition timing. From what I have read, a higher ignition timing usually translates...
Forum: Instrumentation 10-06-2023, 01:29 PM
Replies: 5
Views: 1,206
Posted By CigaR007
My Torque Pro setup

I initially had a bluetooth elm327 obd2 adapter but quickly realized that such a setup was providing limited performance in terms of PID read speed. The BT device was only capable of displaying and...
Forum: Aerodynamics 10-02-2023, 07:06 PM
Replies: 156
Views: 31,592
Posted By CigaR007
Last push before the weather no longer permits...

Last push before the weather no longer permits further progress.

Currently building the rear wheel skirts. I allowed for a bigger gap relative to the tire in order to accomodate any potential snow...
Forum: Aerodynamics 08-14-2023, 09:15 PM
Replies: 156
Views: 31,592
Posted By CigaR007
What would be the ideal thickness for the lexan,...

What would be the ideal thickness for the lexan, in this application ? I don't know how lexan fares in extreme cold though.
Forum: Aerodynamics 08-13-2023, 04:31 PM
Replies: 156
Views: 31,592
Posted By CigaR007
Lexan covers is an option, just not sure how to...

Lexan covers is an option, just not sure how to work with it, in order to achieve the desired shape (heat gun ?).

Filling with foam is also a possible scenario.

Been also considering vortex...
Forum: Aerodynamics 08-13-2023, 12:34 PM
Replies: 156
Views: 31,592
Posted By CigaR007
Here is the detached kamm tail. Weight is just...

Here is the detached kamm tail. Weight is just shy of 40 lbs, (hitch tow bar alone is about 12 lbs). I foresee a weight around 47-50 lbs when all is said and done. Definitely a weight penalty but it...
Forum: Aerodynamics 08-09-2023, 06:23 PM
Replies: 156
Views: 31,592
Posted By CigaR007
Took longer than expected to prepare and pour the...

Took longer than expected to prepare and pour the 2-part foam due to the weather. Pondering whether or not I should tuft test the kamm tail with the rough shape, as is...

It might be a better idea...
Forum: Aerodynamics 07-29-2023, 04:25 PM
Replies: 156
Views: 31,592
Posted By CigaR007
So I hit somewhat of a snag while looking at the...

So I hit somewhat of a snag while looking at the rear diffuser. The entire structure was slanted towards the rear. Newbie mistake, as I was mostly working at an angle, the car being on plastic ramps....
Forum: Aerodynamics 07-27-2023, 10:18 PM
Replies: 156
Views: 31,592
Posted By CigaR007
I can remove it, but I will most likely work on...

I can remove it, but I will most likely work on the rear diffuser while I wait for the supplies to arrive. To my surprise, the stock rear diffuser is somewhat elaborate. It would just be a matter of...
Forum: Aerodynamics 07-26-2023, 05:33 PM
Replies: 156
Views: 31,592
Posted By CigaR007
View from above, in order to visualize the taper....

View from above, in order to visualize the taper.

https://i.ibb.co/93g6FfV/20230725-160305.jpg (https://ibb.co/4gtz6DY)

View from above, with the inner box.
...
Forum: Aerodynamics 07-24-2023, 01:40 PM
Replies: 156
Views: 31,592
Posted By CigaR007
Yeah that seems to be the ideal approach,...

Yeah that seems to be the ideal approach, especially with an added rear diffuser. I see lots of tuft testing once the rough shape is built.

So I ordered 2-part polyurethane foam this morning. My...
Forum: Forum News & Feedback 07-23-2023, 09:31 PM
Replies: 3
Views: 528
Posted By CigaR007
In the mean time, why not log the data in the...

In the mean time, why not log the data in the "trip log" instead of the main "fuel log" database ?
Forum: Aerodynamics 07-23-2023, 09:21 PM
Replies: 156
Views: 31,592
Posted By CigaR007
First is kammtail and rear diffuser integration....

First is kammtail and rear diffuser integration. Wheel skirts will be done once I determine the final shape of the kammtail.
Forum: Aerodynamics 07-23-2023, 07:38 PM
Replies: 156
Views: 31,592
Posted By CigaR007
Turtle I glued another xps foam sheet and it feels more...

I glued another xps foam sheet and it feels more solid. Started working on the transition between the rear wheel and the kammtail.

https://i.ibb.co/Kxbv1W4/20230723-183351.jpg...
Forum: Aerodynamics 07-22-2023, 06:26 PM
Replies: 156
Views: 31,592
Posted By CigaR007
Added rough tapering to the sides and glued the...

Added rough tapering to the sides and glued the rigid foam sheets. Still need to increase the overall rigidity. We will see how sturdy it is after the glue has cured. I might have to fibreglass the...
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