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Search took 0.03 seconds. Search: Posts Made By: ProDigit
Forum: Aerodynamics 10-30-2020, 05:39 AM
Replies: 233
Views: 23,931
Posted By ProDigit
One thing hybrids all have wrong, is they all...

One thing hybrids all have wrong, is they all expect to have gasoline engines that have sufficient power to accelerate the car at highway speeds, and their electric motors are 'helper motors'.
That...
Forum: Hypermiling / EcoDriver's Ed 09-11-2018, 10:25 PM
Replies: 11
Views: 3,951
Posted By ProDigit
You mean roadway 'troller'? :confused:

You mean roadway 'troller'? :confused:
Forum: Fossil Fuel Free 09-11-2018, 06:53 PM
Replies: 237
Views: 24,533
Posted By ProDigit
https://preview.ibb.co/b5dw79/h.png

https://preview.ibb.co/b5dw79/h.png
Forum: Hypermiling / EcoDriver's Ed 09-08-2018, 10:16 AM
Replies: 13
Views: 4,227
Posted By ProDigit
Cvts are for the city. They're not good for...

Cvts are for the city. They're not good for higher speeds, as they rob more power from the engine than an automatic transmission.
They're also not very flexible. You can manually operate them, but...
Forum: For Sale 08-28-2018, 09:35 PM
Replies: 96
Views: 19,237
Posted By ProDigit
For that price you'll get a lot of nice gasoline...

For that price you'll get a lot of nice gasoline cars around here. too many to name!

The only electric, will be a 2012 Nissan LEAF - hatchback. Not something you'll want as a fuel saver. Might...
Forum: EcoModding Central 08-27-2018, 11:06 PM
Replies: 437
Views: 95,932
Posted By ProDigit
Thought of water injection? It would work...

Thought of water injection?

It would work well on this low compression engine.
You could also try to change to a thinner head gasket, in an effort to increase compression.

I wonder if there...
Forum: The Lounge 08-27-2018, 10:41 PM
Replies: 69
Views: 6,306
Posted By ProDigit
Personally, I think, unless we re-invent the...

Personally, I think, unless we re-invent the gasoline engine, hydrogen is out of the question.
I watched Mr Shouty's vid, and couldn't agree less with it.

A while back, there was big research...
Forum: General Efficiency Discussion 08-27-2018, 09:26 PM
Replies: 16
Views: 2,456
Posted By ProDigit
It's called 'heat soak', and especially...

It's called 'heat soak', and especially noticeable on turbo cars.
The most common solution is to either fuel up higher octane fuel (89,91); fuel up with E15, or if you already fueling mid-grade,...
Forum: EcoModding Central 07-19-2018, 07:31 PM
Replies: 51
Views: 12,107
Posted By ProDigit
Ethanol only makes sense in turbo cars; or when...

Ethanol only makes sense in turbo cars; or when driving in excessive heat.
High elevation also robs some power off the engine, but unless its also hot there, I wouldn't use Ethanol gasoline.
...
Forum: Motorcycles / Scooters 03-17-2018, 06:43 PM
Replies: 567
Views: 85,653
Posted By ProDigit
For a sports bike, its still 200cc short. I...

For a sports bike, its still 200cc short.
I wished they had made it a naked bike.

Up to 300cc a single cylinder makes sense.
300-800cc a parallel twin makes sense
800-1200,triple makes sense...
Forum: Motorcycles / Scooters 03-15-2018, 01:09 PM
Replies: 567
Views: 85,653
Posted By ProDigit
In usa the law states 4.5BHP., and 40mph minimum....

In usa the law states 4.5BHP., and 40mph minimum.
Other laws say 125cc.

A 75cc doing 50mph will not be stopped,as advances in modern technology, make certain modern bikes of 80-100cc more highway...
Forum: Motorcycles / Scooters 02-25-2017, 02:39 AM
Replies: 11
Views: 3,506
Posted By ProDigit
You can tune the variator, by installing heavier...

You can tune the variator, by installing heavier variator weights.
It'll make the engine rev lower, but also take away some torque (acceleration).
It does give you higher MPG though, and probably...
Forum: Motorcycles / Scooters 10-28-2016, 06:07 AM
Replies: 9
Views: 8,981
Posted By ProDigit
The R3 is geared very low. It actually gets...

The R3 is geared very low.
It actually gets closer to 80MPG when in final gear, at about 35MPH.
The R3 is geared to go 30-35MPH in final gear for highest MPG. Below that the engine is lugging.
...
Forum: Motorcycles / Scooters 01-24-2016, 09:53 AM
Replies: 104
Views: 18,751
Posted By ProDigit
Except for perhaps gearing. Modern bikes are...

Except for perhaps gearing. Modern bikes are almost all short geared, and meant to be ran in the 4-8k rpm range, while the older ones ran in the 3-5k range.
Forum: Motorcycles / Scooters 01-22-2016, 03:21 AM
Replies: 9
Views: 9,719
Posted By ProDigit
Sprocket calculations for motorcycles (to get better MPG and top speed).

Aside from changing your sprockets on a whim, just to change them,
or changing them by feel, to make your bike feel more or less tame when accelerating,
You can also change sprockets with a...
Forum: Motorcycles / Scooters 09-28-2015, 11:37 PM
Replies: 35
Views: 8,821
Posted By ProDigit
Presuming you can change out the gears, the best...

Presuming you can change out the gears, the best motorcycle would be a Roketa MC-05-127.
It comes stock with 80MPG, and with a sprocket swap from 41T to 31T gets 120MPG at best; but disables it for...
Forum: Success Stories 03-20-2015, 03:19 PM
Replies: 10
Views: 12,899
Posted By ProDigit
Honda Rebel 250 (2013 model, 70 to 90mpg US, 108MPG IMP )

Although the Rebel 250 already has pretty good gas mileage, it's an reasy bike to mod, to get more out of it!

Stock sprockets are 14/33t, makes the little rebby rev in the 4-6k range for normal...
Forum: Motorcycles / Scooters 01-15-2015, 07:53 PM
Replies: 50
Views: 9,109
Posted By ProDigit
For best mpg, I would recommend a 150 CC, 5 speed...

For best mpg, I would recommend a 150 CC, 5 speed transmission,double overdrive motorcycle.
I tried the Roketa 127, best i got is 96mpg at 60mph tailgating trucks, and 120mpg at a constant 35-40mph....
Showing results 1 to 18 of 18

 
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