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Search took 0.03 seconds. Search: Posts Made By: Ken Fry
Forum: Hybrids 09-09-2013, 02:54 PM
Replies: 177
Views: 47,962
Posted By Ken Fry
The project is going fine in several ways. I...

The project is going fine in several ways. I will be able to continue to self-fund it, I've amassed all the critical pieces and have done the engine mods. But I have recently been living in this...
Forum: The Unicorn Corral 07-09-2012, 01:59 PM
Replies: 191
Views: 40,427
Posted By Ken Fry
I have found just the opposite, with some of the...

I have found just the opposite, with some of the HHO promoters becoming so belligerent that they have been thrown off engineering and science sites. When Popular Mechanics did their test showing...
Forum: EcoModding Central 06-18-2012, 02:44 PM
Replies: 289
Views: 53,290
Posted By Ken Fry
Indeed. Kudos, too, to the people who have...

Indeed.

Kudos, too, to the people who have contributed comments and suggestions.
If I recall, both Frank and Pete made comments on the Zing thread that could be considered "negative." For...
Forum: The Unicorn Corral 06-07-2012, 07:54 PM
Replies: 191
Views: 40,427
Posted By Ken Fry
Not much of a debate there. A kilowatt-hour of...

Not much of a debate there. A kilowatt-hour of electrical energy applied via an electric motor can put .8 kWh (or more) into the driveshaft. A kWh of electricity applied to an electrolyzer will...
Forum: EcoModding Central 03-13-2012, 10:09 AM
Replies: 52
Views: 12,303
Posted By Ken Fry
Honda has a system under development in which...

Honda has a system under development in which nanotech robots actually dissemble and reassemble the engine, placing the unused pistons and rods on a nicely padded shelf, temporarily. They have...
Forum: Hybrids 03-10-2012, 05:22 PM
Replies: 73
Views: 11,799
Posted By Ken Fry
A few thoughts: On batteries, you will...

A few thoughts:

On batteries, you will consume about 500 Wh/mile, based on your 16 mpg. A 30kWh LiFePO4 pack would easily fit in your truck, giving you (using 80% of the pack) 48 miles range. ...
Forum: Hybrids 03-07-2012, 05:47 PM
Replies: 33
Views: 12,192
Posted By Ken Fry
Formsprag (http://www.formsprag.com/) is the...

Formsprag (http://www.formsprag.com/) is the "Xerox" of the freewheeling clutch world (sprag clutch is the generic term.)

Automatic transmissions use them too, but you'd have more work to do to...
Forum: Hybrids 03-06-2012, 12:34 PM
Replies: 33
Views: 12,192
Posted By Ken Fry
Gates has a V-belt calculator online that can...

Gates has a V-belt calculator online that can come up with recommendations from their whole line. V-belts can handle hundreds of HP. Toothed belt can handle loads of HP, too, will not slip, and are...
Forum: Hybrids 03-05-2012, 04:00 PM
Replies: 79
Views: 9,369
Posted By Ken Fry
Yes, that will be interesting to see. I've...

Yes, that will be interesting to see. I've consulted for American manufacturers and Japanese, and admire the Japanese for their long range thinking.

I would have liked to see the Volt come out...
Forum: DIY / How-to 03-05-2012, 03:27 PM
Replies: 36
Views: 17,873
Posted By Ken Fry
Oh, another thing that can be helpful: When you...

Oh, another thing that can be helpful: When you have large areas to fill and fair with a surrounding surfaces (I've done this on sailboat keels, which are airfoil shapes that people obsess over) is...
Forum: DIY / How-to 03-05-2012, 03:07 PM
Replies: 36
Views: 17,873
Posted By Ken Fry
The people who have built Vari-Eze planes have...

The people who have built Vari-Eze planes have gotten pretty good at this. The idea is to get the foam nearly perfect in shape, before using any filler at all. This is right about at my patience...
Forum: DIY / How-to 03-05-2012, 02:39 PM
Replies: 36
Views: 17,873
Posted By Ken Fry
Rutan's Moldless Composite Construction is...

Rutan's Moldless Composite Construction is another pretty good one. The Gudgeon brothers have put out a magazine for years with interesting tips, too... can't think of the name, but the WEST system...
Forum: DIY / How-to 03-04-2012, 02:31 AM
Replies: 36
Views: 17,873
Posted By Ken Fry
A related technique, used with epoxy, is covering...

A related technique, used with epoxy, is covering the layup with peel ply, which can be formed into a compound curve. This leaves a surface that permits secondary bonding without the need for...
Forum: The Unicorn Corral 03-02-2012, 07:05 PM
Replies: 23
Views: 6,566
Posted By Ken Fry
John Heywood, arguably the best known authority...

John Heywood, arguably the best known authority on automotive combustion is one such person. He not an arm chair kinda guy, but does real tests with real engines.



The HHO promoter claim...
Forum: Motorcycles / Scooters 02-25-2012, 02:10 PM
Replies: 250
Views: 63,442
Posted By Ken Fry
It's worth mentioning that driving north at 60...

It's worth mentioning that driving north at 60 mph with a 15 mph crosswind from the east, the apparent wind angle is 14 degrees off the nose at 62 mph. If the shape of the fairing is like that of an...
Forum: Motorcycles / Scooters 02-11-2012, 04:29 PM
Replies: 116
Views: 25,239
Posted By Ken Fry
These vbelt cvt's (the v-belt stage) can be 96%...

These vbelt cvt's (the v-belt stage) can be 96% efficient, with some manufacturers claiming even a little higher. The same is true of any v-belt drive, if properly tensioned. (Gates, I think uses...
Forum: Motorcycles / Scooters 02-03-2012, 11:17 PM
Replies: 250
Views: 63,442
Posted By Ken Fry
I hadn't remembered Keith Code calling...

I hadn't remembered Keith Code calling countersteering rubbish. Ironic. He has led the charge to promote the understanding of steering a bike for several decades, I'd guess. His "no BS" bike...
Forum: Off-Topic Tech 01-26-2012, 02:15 PM
Replies: 4
Views: 1,818
Posted By Ken Fry
1. Yes, the variable displacement Honda V6 in...

1. Yes, the variable displacement Honda V6 in the Accord uses it to mask the odd sound of only a few cylinders running.

2. Perhaps, although I am not aware of any other than the Honda unit --...
Forum: Hybrids 01-23-2012, 06:31 PM
Replies: 177
Views: 47,962
Posted By Ken Fry
I am married to my biggest investor. I generally...

I am married to my biggest investor. I generally tell her: "No! Please don't come after me with that knife again."

Actually, things seem to be on track to have four of the two-seaters finished...
Forum: Hybrids 01-23-2012, 12:27 PM
Replies: 177
Views: 47,962
Posted By Ken Fry
This is something of a sore point for me, because...

This is something of a sore point for me, because in my world, there are all sorts of misleading measures of fuel efficiency. In my view, the only measure of vehicle efficiency we have is the EPA...
Forum: General Efficiency Discussion 01-23-2012, 10:39 AM
Replies: 120
Views: 19,850
Posted By Ken Fry
Really great summary. You've condensed one of...

Really great summary. You've condensed one of John Heywood's books into a few paragraphs!
Kudos,
Ken
Forum: General Efficiency Discussion 01-23-2012, 10:23 AM
Replies: 120
Views: 19,850
Posted By Ken Fry
For example: Suppose the car is in town,...

For example: Suppose the car is in town, cruising at 30 mph. The HP used will depend on a lot of factors (parasitic loads, AC on-off, relative effects of rolling resistance vs aero, etc) but an OK...
Forum: General Efficiency Discussion 01-23-2012, 01:29 AM
Replies: 120
Views: 19,850
Posted By Ken Fry
Ordinarily, the efficiency quoted for a given...

Ordinarily, the efficiency quoted for a given engine is based on energy out / energy in (which is derived from BSFC). Miles per gallon is usually not used as a measure of engine efficiency because...
Forum: The Unicorn Corral 01-22-2012, 01:06 PM
Replies: 191
Views: 40,427
Posted By Ken Fry
I've been casually following this, and it is...

I've been casually following this, and it is really gratifying to see the thread veer from fantasy land not just back to reality, but to such an in-depth discussion of combustion control.

I'd...
Forum: Hybrids 01-22-2012, 03:14 AM
Replies: 177
Views: 47,962
Posted By Ken Fry
No problem on the threadjack -- it's plenty...

No problem on the threadjack -- it's plenty related enough, I think.

It's a great question. A modern CVT (such as the Nissan unit) provides the full range of useful ratios from a low-enough-low...
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