Fordmods Logo

optimum A/F for LPG 

 

Page 1 of 1 [ 6 posts ] 

 
 Post subject: optimum A/F for LPG
Posted: Mon Mar 23, 2009 9:50 pm 
Getting Side Ways
Offline
User avatar

Posts: 3363

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

ok so if its petrol u would tune it around 12:1 for power and 17:1 for economy..

what about LPG?

they are two completely different fuels, im thinking u can go heaps richer than pet but not really sure....ive had it as lean as 20:1 it still runs but the power loss is very noticeable....unsure of how rich I can go for max power

 

_________________

Image

Top
 Profile  
 
 
 Post subject: Re: optimum A/F for LPG
Posted: Mon Mar 23, 2009 9:55 pm 
Getting Side Ways
Offline

Age: 66

Posts: 2548

Joined: 18th Mar 2006

Ride: EF-XR8chaser

Location: wollongong
NSW, Australia

my last tune was 14.7\1 afr on lpg.

 

_________________

R.I.P HANS HARTMAN

Top
 Profile  
 
 
 Post subject: Re: optimum A/F for LPG
Posted: Mon Mar 23, 2009 10:16 pm 
Getting Side Ways
Offline
User avatar

Posts: 3363

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

yeah well thats what the feedback systems aim for and attains if everything is working right....theres heaps of leeway available tho if u want more

 

_________________

Image

Top
 Profile  
 
 
 Post subject: Re: optimum A/F for LPG
Posted: Mon Mar 23, 2009 10:24 pm 
Getting Side Ways
Offline

Age: 66

Posts: 2548

Joined: 18th Mar 2006

Ride: EF-XR8chaser

Location: wollongong
NSW, Australia

about 23k on new 302w

 

_________________

R.I.P HANS HARTMAN

Top
 Profile  
 
 
 Post subject: Re: optimum A/F for LPG
Posted: Tue Mar 24, 2009 3:48 pm 
Smokin em up
Offline
User avatar

Age: 50

Posts: 259

Joined: 21st Aug 2008

Ride: Fairlane Concorde 4.0

Location: wagga
NSW, Australia

I did read somewhere recently that 16:1 is the recommended A/F ratio for lean cruise. Anything leaner than that is considered to be putting your engine at risk from overheating. Don't want to melt those pistons.

 

_________________

NF Fairlane: Non Factory Dual Fuel - New coolant tank, New fuel injectors, New fuel pump, New earth cable, ECU capacitors replaced, New O2 sensor, leads and plugs, New Radiator/Condensor cleaned. 483,000kms. AU I6 Powered. Struts, Shockies, Tie rods and ball joints replaced.

Top
 Profile  
 
 
 Post subject: Re: optimum A/F for LPG
Posted: Tue Mar 24, 2009 5:43 pm 
Getting Side Ways
Offline
User avatar

Posts: 3363

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

alfy12 wrote:
I did read somewhere recently that 16:1 is the recommended A/F ratio for lean cruise. Anything leaner than that is considered to be putting your engine at risk from overheating. Don't want to melt those pistons.


thats right but thats for petrol...lpg doesnt seem to have a problem going lean (up to a point)

 

_________________

Image

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 6 posts ] 

Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sun Dec 17, 2017 11:56 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names