Arduino UNO-based Active Grille Block

[LostinTransit]

There's some debate and discredit based on my finding with the van's shutter system which I've remove 10 of the 14 slat and got/getting better fuel economy as well as a new top speed of 110 mph.. Up from 80 mph..

[CigaR007]

Originally Posted by LostinTransit

There's some debate and discredit based on my finding with the van's shutter system which I've remove 10 of the 14 slat and got/getting better fuel economy as well as a new top speed of 110 mph.. Up from 80 mph..

There is no debate. Your claims on FE and Top speed improvements are frivolous.

[aerohead]

Originally Posted by LostinTransit

There's some debate and discredit based on my finding with the van's shutter system which I've remove 10 of the 14 slat and got/getting better fuel economy as well as a new top speed of 110 mph.. Up from 80 mph..

1) increasing top speed, from 80-mph, to 110-mph constitutes a 37.5% increase.
2) in order to increase top speed by this amount requires a drag reduction on the order of 112.5%.
You'd have to be driving on the Moon.

[CigaR007]

Finally finished the assembly of all the parts.

Took longer than expected as I wanted to make the components modular. The modular approach will make it easier to assemble-disassemble and troubleshoot, when needed.

Overall, there are only 3 cables (all CAT6). The arduino UNO sits on the control box that interfaces with the modules and distributes/receives the necessary PWR/GND and signals.

https://www.youtube.com/watch?v=rj1Yf969qVA

Next is installing it all in the CR-Z.

[CigaR007]

Everything has been installed on the CR-Z.

Any ideas on what variables to monitor ?

I can log multiple sensors with Torque Pro with pre-determined trigger points for charting data.

[freebeard]

First picture I've seen of the car's exterior. Was it originally a PHEV or was it retrofitted? What's the medallion opposite the yellow cable?

aerohead might probably agree that you could fit a bellmouth within that bevel on the opening.

I like the body style. Have you considered a boxed cavity/truncated boat tail?

[CigaR007]

Outlet on the left is for the engine block heater. Yellow cord is for the 12v battery. No PHEV for the CR-Z, unfortunately.

I do have a hitch-mounted truncated boat tail in the works. Waiting for warmer weather to continue the build.

[Piwoslaw]

I wonder how much difference you will see between full-open and half-open shutters?
I have a feeling that with the air pressure they may work the same (both for engine cooling and for aero).
Possibly only on the hottest of days?

[Piotrsko]

I would think there is an experimental period involved where max efficiency is based on a series of position for various speeds and could be counter intuitive.
Hot should be more efficient.
Running around Warsaw now, will wave hello as I go by

[aerohead]

Are there any heat-sink-dependent electronics, like an igniter module that were cooled by random air leakage into the engine bay, that might be compromised by 'tightening' the flow to, and around the radiator core?
It would be a bummer if you inadvertently 'cooked' the electronic ignition components.