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Search took 0.02 seconds. Search: Posts Made By: Olympiadis
Forum: Success Stories 04-19-2012, 04:39 PM
Replies: 8
Views: 3,760
Posted By Olympiadis
Success with LRR Michelin HydroEdge tires +6.3% MPG

I just did a test of changing nothing but 4-tires.
Depending on the types of corrections used for the data, the lowest measured gain is 6.3%. Others may see a little larger gain depending on how...
Forum: The Unicorn Corral 03-02-2012, 02:52 PM
Replies: 23
Views: 7,004
Posted By Olympiadis
HHO discussion (split off from the BSFC thread)

That is a good collection of information. I only noticed a couple of errors.
Like the BSFC maps, the emissions chart doesn't show the test load level or the relative spark advance

When you start...
Forum: EcoModding Central 03-02-2012, 01:19 PM
Replies: 112
Views: 18,939
Posted By Olympiadis
I would think more people don't use custom tuning...

I would think more people don't use custom tuning because it's either too difficult (steep learning curve), and/or cost prohibitive.

Putting the NOx issue in perspective here,
a passing amount...
Forum: EcoModding Central 02-28-2012, 10:02 AM
Replies: 23
Views: 5,278
Posted By Olympiadis
It sounds to me like it is your torque converter...

It sounds to me like it is your torque converter locking that is giving the increased MPG.
To test this you might try tracing your TCC circuit and then wiring in an over-ride switch.

Most newer...
Forum: EcoModding Central 02-10-2012, 12:45 PM
Replies: 45
Views: 13,869
Posted By Olympiadis
Acceleration Enrichment (AE) coped from DIY...

Acceleration Enrichment (AE)

coped from DIY EFI:

"What is it
The accel (acceleration) pump is used to add a bit of extra fuel the second the throttle is depressed, the harder, or rather faster...
Forum: EcoModding Central 02-06-2012, 01:07 PM
Replies: 25
Views: 29,206
Posted By Olympiadis
I don't use ultragauge. On a wide-band O2...

I don't use ultragauge.
On a wide-band O2 sensor you would see your AFR drop from 14.6:1 to something lower.

This place regrinds cams for economy:
Delta Camshaft (http://deltacam.com/)
...
Forum: EcoModding Central 02-03-2012, 08:38 PM
Replies: 2
Views: 5,440
Posted By Olympiadis
I don't think there will be a unit that atomizes...

I don't think there will be a unit that atomizes better, but you can improve vaporization rate with the one you have.

Adding heat to the intake manifold or to the intake air helps speed up...
Forum: Aerodynamics 02-01-2012, 08:39 PM
Replies: 25
Views: 7,966
Posted By Olympiadis
I liked the idea of using stiff brushes. I have...

I liked the idea of using stiff brushes. I have been around them in many different uses in machining, and other mechanicals in my mil career, but it really didn't occur to me to try using them.
I...
Forum: EcoModding Central 01-31-2012, 08:12 PM
Replies: 4
Views: 2,893
Posted By Olympiadis
I've used different things ranging from parts...

I've used different things ranging from parts from air-cleaner housings in junk yards (thermac valves), to plumbing and HVAC valves from the hardware stores, to cable operated exhaust cutouts.
...
Forum: EcoModding Central 01-22-2012, 08:05 PM
Replies: 50
Views: 19,817
Posted By Olympiadis
Perhaps you should start your own forum where...

Perhaps you should start your own forum where instead of modification and testing, you have a policy of non-tampering, and instead encourage folks to not mess with their vehicles and just take them...
Forum: EcoModding Central 09-12-2010, 04:28 PM
Replies: 8
Views: 9,123
Posted By Olympiadis
This is a relevant test I performed back in 2005....

This is a relevant test I performed back in 2005.




That said, along with my own confidence in my testing methods and equipment, I would not go so far as to say that a "Tornado" device or...
Forum: EcoModding Central 09-11-2010, 11:33 PM
Replies: 16
Views: 5,562
Posted By Olympiadis
It's not an absolute either way as stated, but...

It's not an absolute either way as stated, but they do have a valid point. It depends heavily on how you intend to drive, and if your vehicle is already under-powered when in its top gear.

When...
Forum: EcoModding Central 09-10-2010, 11:54 AM
Replies: 47
Views: 50,245
Posted By Olympiadis
Here is a screen-shot of some of the (stock) DFCO...

Here is a screen-shot of some of the (stock) DFCO calibrations on my 1991 Chevy Truck.
link for larger photo:...
Forum: EcoModding Central 09-09-2010, 12:31 AM
Replies: 16
Views: 5,562
Posted By Olympiadis
Ford Ranger Axles - The Ranger Station...

Ford Ranger Axles - The Ranger Station (http://www.therangerstation.com/tech_library/Axles.html)

I think most of the 4-cylinders got the 4.10:1 ratio, 3.73:1, or 3.55:1 ratio rear gears, but it's...
Forum: EcoModding Central 09-05-2010, 10:36 PM
Replies: 22
Views: 5,266
Posted By Olympiadis
Thermostatic Air Cleaner (THERMAC)...

Thermostatic Air Cleaner (THERMAC) (http://arrc.epnet.com/autoapp/9110/9110CH04_Thermostatic_Air_Cleaner__THERM.htm)



http://arrc.epnet.com/autoapp/9110/chiltonimages/8538/85384040L.gif
Forum: EcoModding Central 08-20-2010, 02:58 PM
Replies: 28
Views: 7,053
Posted By Olympiadis
Consider installing a rollcage and 5-point...

Consider installing a rollcage and 5-point harness into the car you have along with a lower gear ratio.
You can get extra safety, keep your mileage, and get some ricer points as a bonus.
Forum: Hypermiling / EcoDriver's Ed 08-06-2010, 12:08 PM
Replies: 11
Views: 3,722
Posted By Olympiadis
I don't like bumper stickers like that. After...

I don't like bumper stickers like that.
After all, it's kind of hard to preach "save the planet" while you're driving a car.

No matter how good you think you're doing, someone could always...
Forum: Hypermiling / EcoDriver's Ed 08-06-2010, 10:18 AM
Replies: 11
Views: 3,722
Posted By Olympiadis
The idea has had lots of air-time in the past,...

The idea has had lots of air-time in the past, and generally speaking, people just don't care.
Our society cares about Lindsey Lohan, social interaction (clubbing), sports, giant shiny rims, and...
Forum: EcoModding Central 08-02-2010, 03:22 PM
Replies: 69
Views: 18,546
Posted By Olympiadis
Aside from all the valuable uses I have for this...

Aside from all the valuable uses I have for this sort of function, I'll stay on topic for now and post results of a CTS tricker on my 2003 Ford Focus project. I'll make a separate post about this...
Forum: EcoModding Central 07-23-2010, 02:32 PM
Replies: 24
Views: 8,562
Posted By Olympiadis
Yes, for a lot of engines like yours it is for...

Yes, for a lot of engines like yours it is for most of your driving.
It also depends on loading.
The more the cylinder is loaded, then the less it is true.
A loaded cylinder has more leeway...
Forum: EcoModding Central 07-20-2010, 10:18 PM
Replies: 24
Views: 8,562
Posted By Olympiadis
Well, from what I'm seeing on your graph, your...

Well, from what I'm seeing on your graph, your 7.74 PSI x 2.03 = 15.75 inches Hg seems about right for a steady cruise speed.
Without EGR and with your low compression the numbers I gave as an...
Forum: EcoModding Central 07-20-2010, 07:28 PM
Replies: 24
Views: 8,562
Posted By Olympiadis
If you could please verify the units along your...

If you could please verify the units along your X-axis there.
PSI and inches of Hg are not the same thing.

edit: If you don't completely trust converting the figures, then just put a vacuum...
Forum: EcoModding Central 07-20-2010, 12:48 PM
Replies: 24
Views: 8,562
Posted By Olympiadis
"Light load" is the big DEPENDS in your question....

"Light load" is the big DEPENDS in your question.
During normal driving it is often hard to actually hold a solid "steady" cruise at one load level. If you could, then as you said the optimum SA...
Forum: DIY / How-to 06-25-2010, 02:10 PM
Replies: 391
Views: 127,266
Posted By Olympiadis
Well, if you've been tuning engines for a long...

Well, if you've been tuning engines for a long time you will get a feel for it.

Using test equipment you follow the burn speed in the chamber by watching a combination of things: AFR, EGT, KR...
Forum: DIY / How-to 06-25-2010, 01:03 PM
Replies: 391
Views: 127,266
Posted By Olympiadis
Nerys, I haven't posted here much but I like...

Nerys, I haven't posted here much but I like your thread and what you are doing so I wanted to jump in.

First I have to say I'd never before tried to imagine the sight of a 380 lb man in a tiny...
Showing results 1 to 25 of 25

 
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