Go Back   Ford Truck Enthusiasts Forums > Misc. > Alternative Fuels, Hybrids & Mileage
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-09-2005, 01:11 PM
socalfurnow socalfurnow is offline
Senior User
 
Join Date: Dec 2003
Location: tukwila
Posts: 148
socalfurnow is starting off with a positive reputation.
equivelant flow from carb to mixer

Any rules-of-thumb for swapping from gas to Propane regarding the size of the propane mixer? Standard sizes for small blocks and big blocks?
I might assume I'd want something with a larger flow capacity than my existing carb or does propane flow more rapidly? Do spread bore propane delivery sytems make as much of an impact as with gas? Same difference for 1 barrel vs 2barrel vs. 4?


Any help is much appreciated.
Reply With Quote
  #2  
Old 09-09-2005, 08:34 PM
brown79 brown79 is offline
Senior User
 
Join Date: Nov 2004
Posts: 341
brown79 is starting off with a positive reputation.
my 460 has an impco model 425 mixer and it runs fairly well. if you want bigger there is a company called technocarb that makes a 750 cfm mixer the kit sells for $1750.00 canadian and comes with a mixer converter and an electronic fuel controller. www.propanecarbs.com has lots of good info and links.
__________________
1979 f150

4x4 460 c6 np205

Quote:
Originally Posted by NumberDummy View Post
I guar-an-tee ... I'll ignore ... whatever you post!
Reply With Quote
  #3  
Old 09-10-2005, 12:13 PM
socalfurnow socalfurnow is offline
Senior User
 
Join Date: Dec 2003
Location: tukwila
Posts: 148
socalfurnow is starting off with a positive reputation.
will check links

thanks for the reply. I will definitely check the links.
Reply With Quote
  #4  
Old 09-11-2005, 01:57 AM
351M's Avatar
351M 351M is offline
Posting Guru
 
Join Date: May 2004
Location: Prince George, B.C.
Posts: 2,161
351M is starting off with a positive reputation.
The technocarb is only 750? I thought it was like 900-1000 CFM. The Impco 425 is right around 425 CFM and can seriously chock a large engine or a modded one that is built to take advantage of propane's octane rating. For the spreadbore are you talking a Thermoquad or Quadrajet type? tiny primaries and huge secondaries? Because that will make a difference over the holley style, it will use less fuel till you actually get into the 4 barrels.
Reply With Quote
  #5  
Old 09-11-2005, 11:38 AM
socalfurnow socalfurnow is offline
Senior User
 
Join Date: Dec 2003
Location: tukwila
Posts: 148
socalfurnow is starting off with a positive reputation.
details

I have 2 engines - a 460 with mild rv cam and a stock injected 351.

The 460 is currently running off of an alum edel intake and 650 edel carb. I cannot lean it out enough to get anything better than cocoa colored exhaust pipes. The 460 (in a 77 350) is my first priority for getting onto something cheaper than regular gas. The valves would benefit from a refresh soon so I could tie milled heads in with the propane conversion to increase compresion.

Can you remove injectors and bolt up a propane kit? Need to make sure the tranny isn't computer controlled and ties in with fuel injection data? Soooo glad FTE started this forum.

P.S. Anyone here recently converted and if so howz it goin'?
Reply With Quote
  #6  
Old 09-11-2005, 05:20 PM
351M's Avatar
351M 351M is offline
Posting Guru
 
Join Date: May 2004
Location: Prince George, B.C.
Posts: 2,161
351M is starting off with a positive reputation.
You can also get propane systems that are controlled by the stock computer, they, some also have injectors that replace the stock gas ones.
Reply With Quote
  #7  
Old 09-11-2005, 08:51 PM
socalfurnow socalfurnow is offline
Senior User
 
Join Date: Dec 2003
Location: tukwila
Posts: 148
socalfurnow is starting off with a positive reputation.
cheers

learn something new every day - I'd never heard of propane injectors. Awesome. Suppose if I'd thought of it the modern duel-fuel vehicles must have them, right? And next thing yer going to tell me is that they'll have a comp chip that they can switch over to if they change fuels? Modern technology is frikin' awesome.
Reply With Quote
  #8  
Old 09-12-2005, 10:25 AM
351M's Avatar
351M 351M is offline
Posting Guru
 
Join Date: May 2004
Location: Prince George, B.C.
Posts: 2,161
351M is starting off with a positive reputation.
So far all I know is that when you convert to LPG and dump gas you have that option, most vehicles still use the standard Impco and Vialle systems though. I have never gotten a look at the LPG FI systems and have heard that they are expensive.
Reply With Quote
Old 09-12-2005, 10:25 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Misc. > Alternative Fuels, Hybrids & Mileage

Tags
351m, 400, 750, cfm, mixer, propane, size, technocarb

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
No choke needed on Propane Conversion 1978Crew Alternative Fuels, Hybrids & Mileage 1 10-04-2010 02:53 PM
So... what about turbocharged propane? Elderstarr Supercharger, Turbocharger, Nitrous Oxide & Water/Methanol Injection 9 12-18-2006 06:46 AM
Blow through turbo set up with propane???? pud Alternative Fuels, Hybrids & Mileage 1 07-10-2006 03:17 PM
Propane with a blower? Randyb12 Supercharger, Turbocharger, Nitrous Oxide & Water/Methanol Injection 8 05-11-2005 11:01 AM
EFI 5.0L on propane no start 007bronco Alternative Fuels, Hybrids & Mileage 3 02-03-2005 12:44 PM



All times are GMT -5. The time now is 06:16 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup