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Search took 0.02 seconds. Search: Posts Made By: veloman
Forum: Aerodynamics 05-02-2023, 07:40 PM
Replies: 2
Views: 527
Posted By veloman
I assume he had some cargo on the rack, and it...

I assume he had some cargo on the rack, and it wasn't empty?

I see that as reducing drag, even if no thought of aero was put into it. Even a partial fill of that low pressure zone should be a...
Forum: Aerodynamics 08-11-2020, 12:07 AM
Replies: 5
Views: 955
Posted By veloman
Tuft testing with a leaf blower

Has anyone used a leaf blower for tuft testing on aero mods?
Can it be reliable or accurate enough?
I thought of this because I don't have anyone to drive alongside with a camera. And I have a...
Forum: Aerodynamics 07-30-2020, 04:44 PM
Replies: 298
Views: 300,542
Posted By veloman
Here's a very crude mock up I just did.

Here's a very crude mock up I just did.
Forum: Aerodynamics 07-30-2020, 12:15 AM
Replies: 298
Views: 300,542
Posted By veloman
What are these on my gen 3?

I'm starting to mod my gen 3 and wondering what these plastic things are in front of the front wheels? Looks like unnecessary drag.
Edit: I finished reading the thread and see how they were...
Forum: General Efficiency Discussion 10-22-2016, 02:12 PM
Replies: 29
Views: 3,623
Posted By veloman
I have a similar cargo rack as pictured above....

I have a similar cargo rack as pictured above. Yes, that is a likely setup with a car.

As for the gasoline burned in a Prius, yes I may burn up to a half gallon a day, which would power a gas...
Forum: Motorcycles / Scooters 05-23-2016, 03:57 PM
Replies: 6
Views: 2,112
Posted By veloman
I attempted doing a plastic fairing with this...

I attempted doing a plastic fairing with this mold, but my oven didn't get hot enough with two 1100w burners.

For now... I ended up doing a coroplast front fairing. It's built around a front rack...
Forum: Motorcycles / Scooters 05-17-2016, 12:08 PM
Replies: 13
Views: 3,390
Posted By veloman
Fuel efficiency is far far down the list of...

Fuel efficiency is far far down the list of importance for the industry.
Forum: Alternative Transportation 11-17-2015, 08:48 PM
Replies: 75
Views: 13,900
Posted By veloman
Geared hub motors are more efficient if you are...

Geared hub motors are more efficient if you are riding in hilly terrain or have constant stop and go. But a direct drive is more efficient at cruising speeds. ebikes.ca has a motor simulator to...
Forum: Motorcycles / Scooters 08-20-2015, 07:46 PM
Replies: 72
Views: 19,245
Posted By veloman
Let's not forget who the invasive species is here.

Let's not forget who the invasive species is here.
Forum: EcoModding Central 08-17-2015, 12:01 AM
Replies: 26
Views: 2,951
Posted By veloman
Inflate tires by hand

Am I the only one who uses a bicycle floor pump (hand) to top off car tires? It can take a few minutes, and is a decent workout if you've slacked off and let your tires go down a lot. I spent about...
Forum: Motorcycles / Scooters 06-14-2015, 02:20 PM
Replies: 30
Views: 9,347
Posted By veloman
What are you trying to say? I have about...

What are you trying to say?

I have about 18,000 miles on my two homebuilt ebikes, and never had a solder connection problem. Very very few issues, and all were easily solved (just some dielectric...
Forum: Aerodynamics 05-07-2015, 08:25 PM
Replies: 80
Views: 17,400
Posted By veloman
This fairing I built for my ebike has worked...

This fairing I built for my ebike has worked pretty well, though it is far from ideal.

It helps a lot to have a low seat, which is not possible on a bike which is to be pedaled when seated. I only...
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