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Search took 0.01 seconds. Search: Posts Made By: drmiller100
Forum: Aerodynamics 04-26-2013, 02:20 AM
Replies: 84
Views: 28,896
Posted By drmiller100
NVNTRS.com (http://www.nvntrs.com/mpg-trikes.htm)

NVNTRS.com (http://www.nvntrs.com/mpg-trikes.htm)
Forum: Aerodynamics 04-25-2013, 12:12 PM
Replies: 84
Views: 28,896
Posted By drmiller100
the first rendering is idealized. when you go...

the first rendering is idealized.
when you go to actually build the thing, reality steps in.

The fundamental driver's height is a hard number. You cannot really drop below it and stay...
Forum: EcoModding Central 08-25-2012, 11:58 AM
Replies: 23
Views: 3,451
Posted By drmiller100
I think there are several things in play. Today,...

I think there are several things in play. Today, people EXPECT cars to go 200,000 miles. In my youth, cars were totally junk at 100,000 miles.

I work on Hondas daily which have 300,000 plus,...
Forum: Aerodynamics 08-22-2012, 11:00 AM
Replies: 71
Views: 12,473
Posted By drmiller100
he is talking the tail of the car, right? so...

he is talking the tail of the car, right?
so the pic of the van is misleading.

we can argue about the transition from the body to the kammback, but suffice it to say if we are going from...
Forum: Hybrids 08-19-2012, 02:03 AM
Replies: 177
Views: 47,827
Posted By drmiller100
pretty easy to make it perfect enough to never...

pretty easy to make it perfect enough to never run.

i'm thrashing.

i'm trying to get too much done in life, and nothing is getting done.

don't know which project to finish, and which ones...
Forum: Aerodynamics 08-16-2012, 10:24 AM
Replies: 27
Views: 6,656
Posted By drmiller100
i'm trying to build a kit so you can get what you...

i'm trying to build a kit so you can get what you want.

ken fry is trying.

as far as i know, we are the only two working on it.
Forum: EcoModding Central 07-13-2012, 06:46 PM
Replies: 289
Views: 53,158
Posted By drmiller100
I'll be at bonneville with it. Absolute,...

I'll be at bonneville with it.

Absolute, positive worse case I can throw the windshiedl in, weld a few odds and ends, and take it as is.

I'd LIKE to have it painted and a bunch of body work...
Forum: Aerodynamics 07-12-2012, 09:45 PM
Replies: 10
Views: 3,123
Posted By drmiller100
form drag VASTLY overshadows skin drag. so,...

form drag VASTLY overshadows skin drag.

so, benefits are MUCH more likely to be seen with changes in shape and size than skin friction.

THink golf balls.The skin friction is used to reduce form...
Forum: EcoModding Central 07-12-2012, 01:28 PM
Replies: 289
Views: 53,158
Posted By drmiller100
just like a 4 wheel car does???

just like a 4 wheel car does???
Forum: EcoModding Central 07-10-2012, 10:44 AM
Replies: 60
Views: 15,928
Posted By drmiller100
Absolutly I am interested. I will commit to...

Absolutly I am interested.

I will commit to your project the following:

I will give my design of the frame.
I will give measurement, etc.
I will help you figure out how to convert my...
Forum: Aerodynamics 06-15-2012, 01:15 AM
Replies: 55
Views: 12,100
Posted By drmiller100
so, I have a local guy who is REALLY FRIGGING...

so, I have a local guy who is REALLY FRIGGING SMART.

He came up to me last week, and says exactly what you said. Makes things pretty interesting.
I'm going to make the port side no long...
Forum: Aerodynamics 06-07-2012, 10:43 AM
Replies: 55
Views: 12,100
Posted By drmiller100
I'm a huge fan of the Myers Briggs Personality...

I'm a huge fan of the Myers Briggs Personality Index, and it helps me understand myself, and others. FWIW, I am the classic, old school ENTP.

I am NOT visual. I have a tough time Imagining the...
Forum: EcoModding Central 06-06-2012, 10:32 AM
Replies: 8
Views: 1,385
Posted By drmiller100
there is a fair number of people doing this. ...

there is a fair number of people doing this.

solar is pretty small, but it does charge all day while you are at work.

trickle charger for the evening.

Then hook the alternator so it only...
Forum: Off-Topic Tech 05-27-2012, 07:09 PM
Replies: 23
Views: 3,470
Posted By drmiller100
From the inside. Many customers lie. I cynic...

From the inside.

Many customers lie. I cynic would start treating customers as the enemy after a while.

Most mechanic shops lie. I see it a LOT. Customers EXPECT mechanics to lie, so they...
Forum: EcoModding Central 05-27-2012, 06:46 PM
Replies: 10
Views: 24,713
Posted By drmiller100
the 6.2 had 130 horsepower in its early years. ...

the 6.2 had 130 horsepower in its early years.

The tahoe with vortec has MINIMUM of 260 horsepower, maybe 290 depending on year.

They are probably the same weight.

The good news is the tahoe...
Forum: General Efficiency Discussion 05-25-2012, 11:37 AM
Replies: 27
Views: 4,904
Posted By drmiller100
I work a LOT on the old civics. three things they...

I work a LOT on the old civics. three things they have issues with.
Timing belts. cheap and easy to do.
Fuel pumps. Somewhat prevented by changing the fuel filter, which is almost never done....
Forum: General Efficiency Discussion 05-23-2012, 09:37 PM
Replies: 27
Views: 4,904
Posted By drmiller100
honda civic, or a crx, or an accura integra all...

honda civic, or a crx, or an accura integra all from teh early 90's.

all can be found for 2k if you look just a bit. don't be afraid of 200k miles - but expect to put a timing belt in them.
Forum: The Lounge 05-09-2012, 10:10 AM
Replies: 11
Views: 4,601
Posted By drmiller100
I don't think the location of the stoppage really...

I don't think the location of the stoppage really matters. The goal is to reduce the amount of moving air.
Forum: Aerodynamics 05-05-2012, 08:28 PM
Replies: 16
Views: 3,591
Posted By drmiller100
skin drag is pretty small in our world, which is...

skin drag is pretty small in our world, which is what this addresses.

Form drag is HUGE.

The problem you would solve with this would probably not be measurable.
Forum: EcoModding Central 05-02-2012, 10:58 AM
Replies: 284
Views: 46,181
Posted By drmiller100
gasolne has almost no lubricating properties any...

gasolne has almost no lubricating properties any more, and water is actually more viscous then gasoline (better lubrication).

I think you could use any fuel injector for water.
Forum: DIY / How-to 05-01-2012, 10:37 PM
Replies: 22
Views: 5,597
Posted By drmiller100
ESPECIALLY on a hot summer day.

ESPECIALLY on a hot summer day.
Forum: DIY / How-to 05-01-2012, 10:36 PM
Replies: 22
Views: 5,597
Posted By drmiller100
take any old engine on a hot summer day, and run...

take any old engine on a hot summer day, and run it on gasoline. Lets say it makes 100 horsepower.

Now we take the carb off, hog out the main jet, and run a LOT of alky through it. The engine can...
Forum: General Efficiency Discussion 04-29-2012, 11:16 PM
Replies: 52
Views: 11,935
Posted By drmiller100
On the link provided the Continue button goes...

On the link provided the Continue button goes into great depth about all this.

The link shows there are indeed two countershafts, and that they need to be rotating in opposite directions and...
Forum: EcoModding Central 04-24-2012, 10:55 AM
Replies: 289
Views: 53,158
Posted By drmiller100
got front seat in, core support built, suspension...

got front seat in, core support built, suspension done AGAIN (but need to fix some stuff yet), emergency brake set in, floor in.

Figured out a windshield, but not mounted yet.

off to the body...
Forum: The Lounge 04-19-2012, 11:11 AM
Replies: 43
Views: 7,525
Posted By drmiller100
interference engines have less surface area in...

interference engines have less surface area in the combustion chamber.

valve reliefs make for more surface area.

the more surface area you have, the more heat is lost to the surface. the more...
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