Go Back   EcoModder Forum > Search Forums
Reload this Page Search Results
Register Now
 Register Now
 

Page 1 of 3 1 23
Showing results 1 to 25 of 74
Search took 0.04 seconds. Search: Posts Made By: hat_man
Forum: EcoModding Central 02-01-2025, 03:26 PM
Replies: 20
Views: 2,127
Posted By hat_man
I guess in a sense that’s my point. If the...

I guess in a sense that’s my point.

If the evolution of tubercles is good (and aero and fluid dynamics being similar) then why don’t we see the same evolutionary process on “air creatures”? My...
Forum: EcoModding Central 02-01-2025, 02:37 PM
Replies: 20
Views: 2,127
Posted By hat_man
Not wanting to be the uneducated latecomer to...

Not wanting to be the uneducated latecomer to this “discussion” but as for the “xxx years of evolution…” angle I do have a comment.

The evolution of these tubercles occur on an animal that lives...
Forum: EcoModding Central 01-02-2023, 09:41 PM
Replies: 13
Views: 1,469
Posted By hat_man
I once rolled the truck until one bolt on the...

I once rolled the truck until one bolt on the U-joint was at 12 o'clock. I marked it with tape and marked the tire at 6 o'clock. I rolled the truck forward until the tire made one revolution. The...
Forum: EcoModding Central 08-20-2022, 09:41 AM
Replies: 9
Views: 1,523
Posted By hat_man
My thoughts would be to use the 22" wing at 5*. ...

My thoughts would be to use the 22" wing at 5*. It's nearly as good as the "best" option listed and I think 5* (maybe) fits the template better. I have a short bed truck. It also looks like 12* is...
Forum: EcoModding Central 08-14-2022, 07:23 PM
Replies: 9
Views: 1,523
Posted By hat_man
Half tonneau / Bonneville spoiler

I'm not exactly sure it's called a Bonneville spoiler, but I thought I had seen a picture of what I'm thinking about in a thread here years ago. Searching "Bonneville spoiler" didn't turn it up...
Forum: EcoModding Central 07-21-2022, 10:48 AM
Replies: 17
Views: 2,656
Posted By hat_man
I'm going to assume that the given range of...

I'm going to assume that the given range of 16.4-19.8 ft/sec is plotted as a bell curve and will have the midpoint (18.1 ft/sec) as ideal and giving diminishing returns down both sides. Please...
Forum: EcoModding Central 07-20-2022, 01:36 PM
Replies: 17
Views: 2,656
Posted By hat_man
I appreciate all the information, but I don't...

I appreciate all the information, but I don't want to get so focused on the fine details that the bigger picture is lost. Things like metallic make up of blocks, pistons, and rings or the...
Forum: EcoModding Central 07-15-2022, 07:17 PM
Replies: 17
Views: 2,656
Posted By hat_man
I'm not very good at using the Quote function, so...

I'm not very good at using the Quote function, so this is a cut,copy,paste from the thread I linked above.

Here you go;

As a rule of thumb, most engines achieve their best fuel economy at an...
Forum: EcoModding Central 07-10-2022, 08:06 PM
Replies: 17
Views: 2,656
Posted By hat_man
Just found this...... ...

Just found this......

https://ecomodder.com/forum/showthread.php/optimum-piston-speed-1477.html

Now to read it all. Any other insight would be appreciated.
Forum: EcoModding Central 07-10-2022, 04:08 PM
Replies: 17
Views: 2,656
Posted By hat_man
Piston speed and FE

Hello everyone,

I know I have seen this term used here before, but I'm not sure how it relates to FE, how to calculate it, or how to use that calculation to help me improve. Can anyone give me a...
Forum: Aerodynamics 09-15-2020, 10:30 AM
Replies: 85
Views: 6,018
Posted By hat_man
I'm willing to learn something here but I'm going...

I'm willing to learn something here but I'm going to need some guidance.

Is the lift of the Dream created by the attached airflow over the top of the profile or because the design of the...
Forum: Aerodynamics 09-13-2020, 08:36 PM
Replies: 50
Views: 4,425
Posted By hat_man
So what you are saying is that if the advice is...

So what you are saying is that if the advice is deemed as flawed it shouldn't be followed? And if it is followed, then it has no advantage? This is what I mean by something is better than nothing. ...
Forum: Aerodynamics 09-13-2020, 09:59 AM
Replies: 50
Views: 4,425
Posted By hat_man
I don't really have a dog in this fight. 99% of...

I don't really have a dog in this fight. 99% of the "brain trust" here is leaps and bounds ahead of me when it comes to the technical stuff, but a statement like this is just "trumpet blowing" IMO....
Forum: EcoModding Central 08-23-2020, 10:21 AM
Replies: 7
Views: 799
Posted By hat_man
List of wheel weights

Hello everyone.

After reading a new thread about lighter weight wheels vs. aero wheels I searched my laptop for a pdf file I had that was a very extensive list of wheel weights and sizes including...
Forum: Off-Topic Tech 08-23-2020, 09:06 AM
Replies: 13
Views: 1,917
Posted By hat_man
For the moment I am thinking these might be my...

For the moment I am thinking these might be my choices, but more research is in order.

235/45/16
245/45/16
225/50/16
225/55/15
245/50/15
235/50/15

And as requested some pics. I haven't...
Forum: Aerodynamics 08-03-2020, 05:36 PM
Replies: 206
Sticky: CdA list
Views: 261,241
Posted By hat_man
From this article it's hard to imagine the TR7...

From this article it's hard to imagine the TR7 having the same Cd as a 2018 Dodge Ram 1500.
...
Forum: Aerodynamics 08-03-2020, 05:19 PM
Replies: 206
Sticky: CdA list
Views: 261,241
Posted By hat_man
From a Triumph website ...

From a Triumph website

https://www.triumphexp.com/forum/triumphs-list-archive.17/drag-coefficients.1116208/

'82 TR-7
Cd 0.360
Area m² 1.765
Area ft² 19.00
Cd x m² 0.64
Cd x ft² ...
Forum: Aerodynamics 07-09-2020, 11:36 AM
Replies: 23
Views: 2,577
Posted By hat_man
I have been away from the forum for a while...

I have been away from the forum for a while working on other projects, but it seems I have missed a gem of a contributor. I see above someone had said he may have a YT channel? If it isn't against...
Forum: EcoModding Central 07-06-2020, 08:50 AM
Replies: 7
Views: 867
Posted By hat_man
Thanks for the advice both of you. I do have...

Thanks for the advice both of you.

I do have a larger tire size on there now. I checked the speedo and odometer before the tire change and they were very minimally off. Just a hair over 1 mile...
Forum: Aerodynamics 03-15-2020, 09:36 AM
Replies: 4
Views: 1,067
Posted By hat_man
The Roaring Raindrop

Found this article while researching another project. Just thought I would share.


classic motoring history (http://www.auto-history.tv/moss/)
Forum: Aerodynamics 10-06-2019, 06:37 AM
Replies: 7
Views: 1,472
Posted By hat_man
Here's one I was attempting for a '97 Ranger...

Here's one I was attempting for a '97 Ranger step-side. I don't drive that truck anymore but I still have the frame. I think I'll try and modify it to fit my 2003 fleet-side. Pictures start on...
Forum: General Efficiency Discussion 09-17-2019, 06:33 PM
Replies: 1,347
Views: 373,174
Posted By hat_man
Slowmover.....just the wife of 33 years and me at...

Slowmover.....just the wife of 33 years and me at this point. Her sedan is a smooth ride for the long trips together and has room enough for dinner friends. But with a 120 mile round trip for work...
Forum: Aerodynamics 09-14-2019, 09:37 AM
Replies: 4
Views: 1,832
Posted By hat_man
Under body air flow idea ?

Hello again everyone.

Having an hour drive to work everyday on the same roads sort of puts me in "auto pilot" and I can let my mind wander through crazy ideas. This is another one. I have no...
Forum: Aerodynamics 09-01-2019, 08:14 AM
Replies: 88
Views: 22,450
Posted By hat_man
Most of the spats I see are on smaller passenger...

Most of the spats I see are on smaller passenger cars that are already fairly low to the ground. Vekke brings up a point about height of the spats making a difference. My question (being I know...
Forum: Forum News & Feedback 08-31-2019, 04:43 PM
Replies: 10
Views: 2,592
Posted By hat_man
Never did get my EM.com sticker on the truck yet,...

Never did get my EM.com sticker on the truck yet, but did this this afternoon. Came out pretty good.
Showing results 1 to 25 of 74
Page 1 of 3 1 23

 
Forum Jump

Contact Us - EcoModder.com - Archive - Recent Posts - Top

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com