Go Back   EcoModder Forum > Off-Topic > The Lounge
Register Now
 Register Now
 


Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-21-2009, 06:38 AM   #1 (permalink)
Too many cars
 
Gasoline Fumes's Avatar
 
Join Date: Oct 2009
Location: New York State
Posts: 1,406

CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
Team Honda
Gen-1 Insights

Insight 5342 - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 65.78 mpg (US)
Thanks: 993
Thanked 677 Times in 398 Posts
Uses for a small Kubota diesel?

I have a 4.5 HP Kubota diesel engine (EL300-AR). It was originally from one of those flashing highway arrows. What should I do with it? I saw it on craigslist earlier this year and couldn't say no. I was thinking bike or trike, but that might never happen. I could make a generator, but that's no fun to ride.

It's tempting to run it on WVO, but I'm not sure how tolerant it is of that stuff.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-21-2009, 09:15 AM   #2 (permalink)
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,538

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,056
Thanked 630 Times in 396 Posts
If it's not too big or heavy, maybe a range-extending generator for an EV or hybrid? Assuming you already have one, of course
__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell

Piwoslaw's Peugeot 307sw modding thread

  Reply With Quote
Old 10-21-2009, 10:54 AM   #3 (permalink)
Smeghead
 
Join Date: Oct 2009
Location: South Central AK
Posts: 933

escort - '99 ford escort sport
90 day: 42.38 mpg (US)

scoobaru - '02 Subaru Forester s
90 day: 28.65 mpg (US)
Thanks: 32
Thanked 146 Times in 97 Posts
aux power for a small sailboat?
  Reply With Quote
Old 10-21-2009, 11:12 AM   #4 (permalink)
Left Lane Ecodriver
 
RobertSmalls's Avatar
 
Join Date: Aug 2008
Location: Buffalo, NY, USA
Posts: 2,257

Prius C - '12 Toyota Prius C
Thanks: 79
Thanked 284 Times in 197 Posts
Here's a half-baked idea for a 15HP diesel engine: you could do a gasoline/diesel hybrid. Have the engine drive a fifth wheel located beneath the cargo floor of your Civic wagon. Use the gas engine when you need to go 0-60 in less than a minute, and use the diesel for cruising. It's a poor man's cylinder deactivation / bi-fuel scheme.

However, 4.5HP will give NEV-like performance in any road car. 40mph, tops. 0-30, eventually.

In order to achieve highway speeds, you're going to need a streamlined, two- or three-wheeled vehicle, preferably under 500lbs.
  Reply With Quote
Old 10-21-2009, 11:19 AM   #5 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ˙
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 267 Times in 210 Posts
It would be killer on my moped
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Old 10-21-2009, 11:38 AM   #6 (permalink)
Too many cars
 
Gasoline Fumes's Avatar
 
Join Date: Oct 2009
Location: New York State
Posts: 1,406

CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
Team Honda
Gen-1 Insights

Insight 5342 - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 65.78 mpg (US)
Thanks: 993
Thanked 677 Times in 398 Posts
Quote:
Originally Posted by dcb View Post
It would be killer on my moped
It's 2 feet long and weighs 100 lbs.
  Reply With Quote
Old 10-21-2009, 11:59 AM   #7 (permalink)
Too many cars
 
Gasoline Fumes's Avatar
 
Join Date: Oct 2009
Location: New York State
Posts: 1,406

CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
Team Honda
Gen-1 Insights

Insight 5342 - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 65.78 mpg (US)
Thanks: 993
Thanked 677 Times in 398 Posts
One of the reasons I might not build a trike is the difficulty of finding a suitable transmission. With a max RPM of 2000, it's going to need multiple gears to acheive a respectable cruising speed and still be able to accelerate. I have a 3-speed lawnmower gearbox that would be OK, but it's designed for a vertical shaft engine and is grease-lubed. My other concern is MPG. I'd hate to go through the trouble of building something and then find out it gets only 61 MPG and has a top speed of 34 MPH. It would have to get about 100 MPG and go 50 MPH for me to build it.
  Reply With Quote
Old 10-22-2009, 08:02 AM   #8 (permalink)
Eco Noob
 
Doofus McFancypants's Avatar
 
Join Date: Jan 2008
Location: Tosev 3 - Atlanta GA
Posts: 293

Red Rover - '01 Nissan Altima GXE
90 day: 30.07 mpg (US)
Thanks: 5
Thanked 7 Times in 5 Posts
i would second the WVO generator setup for range extender.
At that RPM you are not going to get much direct drive applications without some customer parts.
__________________
Steve - AKA Doofus McFancypants
------------------------------
"If there's a new way, I'll be the first in line - But it better work this time"

First Milestone passed - 30 MPG (city) 5/15/08
Best City Tank - 8/31/09- 34.3 MPG (EPA= 20)
Best Highway Tank - 5/20/09 - 36.5 MPG (EPA= 28)
------
In effort to drive less:
Miles NOT driven in 2009 = 648 (Work from home and Alt Transporatation)
  Reply With Quote
Old 10-23-2009, 12:51 AM   #9 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,761

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,546 Times in 2,215 Posts
It would be the ultimate "cruise engine"- get up to cruise speed, activate Kubota, shut down regular engine, sip! (might need a sub-Metro sized vehicle to do that on though)
__________________


  Reply With Quote
Old 10-23-2009, 01:48 AM   #10 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Quote:
Originally Posted by Gasoline Fumes View Post
One of the reasons I might not build a trike is the difficulty of finding a suitable transmission. With a max RPM of 2000, it's going to need multiple gears to acheive a respectable cruising speed and still be able to accelerate. I have a 3-speed lawnmower gearbox that would be OK, but it's designed for a vertical shaft engine and is grease-lubed. My other concern is MPG. I'd hate to go through the trouble of building something and then find out it gets only 61 MPG and has a top speed of 34 MPH. It would have to get about 100 MPG and go 50 MPH for me to build it.
Why such high expectations? What do you have that even comes close to rivaling that now?

Being more realistic, 61MPG on diesel which is basically free (if you make it yourself) is still a sight better than 100 MPG on $3.00 a gallon gasoline.

Average cost of BD when you make it at home, and using free WVO to make it, is about 90 cents a gallon, last I heard. At the price of the gas station next door, $2.70 a gallon for gasoline, I'd have to get 90MPG gasoline to match 30MPG diesel.

Your speed limitation isn't really all that realistic, either, I think. How many days do you really HAVE to go 50 MPH? Could you not suffice with 35-40 MPH?

Beyond that, there are many things you can do to increase the power output once you've built the project and gotten it working. Later on, you can streamline it, change gear ratios, increase output and efficiency with a small turbo, etc.

Build it, then worry about the details. Very few peopele actually stick to all of their goals when building something one-off. Compromise is necessary until the thing can be considered "tangible".

__________________
"żʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Geo Metro convertible / Kubota diesel engine conversion (driving!) kimer6 EcoModding Central 118 07-01-2013 04:21 PM
Fuel efficient (small!) diesel engine for Pickup truck bennelson EcoModding Central 24 10-12-2012 09:15 PM
Why is diesel so expensive in the UK? Eddles Off-Topic Tech 17 10-01-2009 10:50 AM
Canceling out pumping losses of throttle governed engines greasemonkee EcoModding Central 60 08-03-2009 04:24 PM
As I Had Thought Big Dave General Efficiency Discussion 54 09-02-2008 11:00 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com