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Search took 0.02 seconds. Search: Posts Made By: stefanv
Forum: Forum News & Feedback 01-31-2020, 02:20 PM
Replies: 109
Views: 12,320
Posted By stefanv
That's the thing though. If everyone tried to...

That's the thing though. If everyone tried to save fuel (I've heard, probably on this forum, that the average driver can save about 30% just by adjusting their driving habits), Mother Nature will...
Forum: Forum News & Feedback 01-09-2020, 08:27 PM
Replies: 109
Views: 12,320
Posted By stefanv
Indeed. Eco modding reduces the amount of gas...

Indeed. Eco modding reduces the amount of gas used (as does driving less). And I wish we (Canada) would stop producing fracked oil. It makes me ashamed.
Forum: EcoModding Central 12-31-2018, 12:08 PM
Replies: 20
Views: 3,824
Posted By stefanv
In city driving, probably a lot. It's less clear...

In city driving, probably a lot. It's less clear cut for my commute, but there are about 3km (out of 45) during my commute where I don't need the engine. With the engine idling, I burn about...
Forum: EcoModding Central 12-13-2018, 03:14 PM
Replies: 14
Views: 3,209
Posted By stefanv
A ScanGauge or the Torque app will definitely...

A ScanGauge or the Torque app will definitely help you, as long as you use the information as JRMichler describes above. I went with Torque, and have a dedicated tablet in the car for it (which also...
Forum: EcoModding Central 09-03-2018, 09:28 PM
Replies: 52
Views: 12,167
Posted By stefanv
Slightly OT, slightly not

Since my car is a Saturn, I though I'd post this photo I took a few nights ago. A different kind of Saturn photo I guess, but then the Saturn was always advertised as "a different kind of car":
...
Forum: EcoModding Central 08-13-2018, 10:17 PM
Replies: 52
Views: 12,167
Posted By stefanv
Minor Improvements

I haven't done any more significant mods, but have cleaned up a few things.

The first was a partial redo of the grill block and air dam extension. Last year, one grill block was shattered when I...
Forum: Instrumentation 08-09-2018, 08:40 PM
Replies: 26
Views: 5,036
Posted By stefanv
To my Canadian friends, do you think most people...

To my Canadian friends, do you think most people here (Southern Ontario) would comprehend L/100km, or do they still think in mpg? And if the latter, US gallons or Imperial gallons? I know that back...
Forum: Aerodynamics 07-22-2018, 08:27 PM
Replies: 27
Views: 3,816
Posted By stefanv
I finally got around to measuring what my HVAC...

I finally got around to measuring what my HVAC blower uses. All tests were done with the car off, so voltage was only around 12V:

Setting Current TotalPower MotorPower

Low 2.5A ...
Forum: Aerodynamics 07-22-2018, 06:48 AM
Replies: 27
Views: 3,816
Posted By stefanv
Indeed, like any drag effect, it's probably...

Indeed, like any drag effect, it's probably proportional to the square of your speed. So at say 75km/h, I'd expect to see about 88% of the window drag I'd get at 80km/h.
Forum: EcoModding Central 07-21-2018, 09:41 PM
Replies: 52
Views: 12,167
Posted By stefanv
First a Kill Switch ... Now a Revive Switch

As my hyperkilometring evolves, I've found I use my kill switch more and more. When using it while rolling, I've usually restarted by letting out the clutch, but it's very hard to do this smoothly,...
Forum: Aerodynamics 07-18-2018, 06:24 AM
Replies: 27
Views: 3,816
Posted By stefanv
Yes, when the car's not running, it's 12V. When...

Yes, when the car's not running, it's 12V. When it is running, the alternator is keeping the voltage up around 14.5V, hence my 217W figure.
Forum: Aerodynamics 07-16-2018, 06:45 AM
Replies: 27
Views: 3,816
Posted By stefanv
I'm going to have to measure mine. It can't be...

I'm going to have to measure mine. It can't be anywhere near 200W though since the entire HVAC system, including the rear window defogger, is on a single 15A fuse, so at 14.5V, that would be 217W...
Forum: Aerodynamics 07-14-2018, 02:22 PM
Replies: 27
Views: 3,816
Posted By stefanv
Slightly open window?

Hi everyone. First post in a long time ...

The common wisdom is that for city driving, and open window is more fuel efficient than A/C, and for highway, the opposite is true. I generally try to...
Forum: EcoModding Central 03-01-2018, 07:00 PM
Replies: 52
Views: 12,167
Posted By stefanv
A Milestone!

http://ecomodder.com/forum/attachment.php?attachmentid=23622&stc=1&d=1519948884
Forum: EcoModding Central 01-22-2018, 11:18 AM
Replies: 52
Views: 12,167
Posted By stefanv
Installed a kill switch

I've been doing some EOC and also turning off the engine at long stops, and until now, have been doing it with the key. The drawbacks to this are twofold:


There's always the possibility of...
Forum: EcoModding Central 01-22-2018, 11:00 AM
Replies: 52
Views: 12,167
Posted By stefanv
Solved the noise problems ...

It's been a few months, and it's time for some updates!

There were two sources of electrical noise in the amplifier mentioned in my previous post. One was differering ground levels between the...
Forum: Instrumentation 11-22-2017, 03:10 PM
Replies: 3
Views: 1,470
Posted By stefanv
I use the My Cars app on Android, on my phone...

I use the My Cars app on Android, on my phone until last week, and now on the tablet I've been using and am in the process of building into my car. It doesn't do average mph (since it has no way to...
Forum: EcoModding Central 11-10-2017, 10:11 AM
Replies: 52
Views: 12,167
Posted By stefanv
Tablet Dedicated to Torque

I've been so happy with Torque, that I decided to keep using it instead of building an MPGuino or similar. In fact, I decided to go out an by an inexpensive 7" tablet to install permanently in the...
Forum: Hypermiling / EcoDriver's Ed 09-14-2017, 06:47 PM
Replies: 42
Views: 9,694
Posted By stefanv
Drafting a Transport Truck ... Am I Doing It Right?

http://ecomodder.com/forum/attachment.php?attachmentid=22676&stc=1&d=1505429190

Am I too close?
Forum: Fossil Fuel Free 08-25-2017, 04:26 PM
Replies: 19
Views: 3,646
Posted By stefanv
http://ecomodder.com/forum/attachment.php?attachme...

http://ecomodder.com/forum/attachment.php?attachmentid=22509&stc=1&d=1503692766

EDIT: It really helped that the angle of the vehicle in the two photos was virtually identical.
Forum: Off-Topic Tech 08-25-2017, 03:53 PM
Replies: 12
Views: 1,807
Posted By stefanv
This idea could be made even more efficient by...

This idea could be made even more efficient by platooning 50 trucks, physically connected to one another, with the first one pulling the rest. Put them on steel rails and efficiency goes up even...
Forum: EcoModding Central 08-25-2017, 09:41 AM
Replies: 52
Views: 12,167
Posted By stefanv
First full tank results are in: 5.19 L/100 km,...

First full tank results are in: 5.19 L/100 km, 45.3 mpg (US), 54.4 mpg (Imp).

A tiny bit worse than the previous tank (of which only 3/4 was with the mods in place). However, my wife took the car...
Forum: Hypermiling / EcoDriver's Ed 08-17-2017, 11:26 AM
Replies: 4
Views: 1,211
Posted By stefanv
Remember, from high school physics, that turning...

Remember, from high school physics, that turning == acceleration.

If you make a 90 degree turn, say from west to north, all the while maintaining 30km/h, you have to accelerate from 0km/h in a...
Forum: EcoModding Central 08-14-2017, 09:38 AM
Replies: 52
Views: 12,167
Posted By stefanv
First partial tank result is in. I had burned 1/4...

First partial tank result is in. I had burned 1/4 of a tank before doing these mods, and this morning, with 744km (462mi) since my last fill up, I put 38.3L (10.1USgal) into the tank, for a record...
Forum: EcoModding Central 08-07-2017, 11:01 AM
Replies: 52
Views: 12,167
Posted By stefanv
2001 Saturn SL1 Mod - Complete Grill Block

I've been driving my car for a few weeks now with the grill completely blocked using two pieces of foam pipe insulation. This was a temporary measure, so I could monitor the engine temperature to see...
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