Help with air fuel ratios? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 12-14-2004, 00:43   #1 (permalink)
Jim Mock You Rock
 
Join Date: Jul 2004
Location: sYDNEY
Age: 46
Posts: 1,766
Help with air fuel ratios?

Hi all can you please suggest any help with my air fuel ratios and lower power?What should they be?
Attached Images
File Type: jpg useless150 rwkws air fuel.jpg (105.9 KB, 85 views)
useless is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-14-2004, 05:15   #2 (permalink)
Mcccli
 
mcccy005's Avatar
 
Join Date: Sep 2004
Location: Canberra
Posts: 142
Re: Help with air fuel ratios?

They should be exactly as they are!!
It should be around 14.7 normally (maybe as low as 17ish:1 when cruising); and when you nail it, depending on the car, it should be around 12ish:1. There are 'optimum' ratios for most power; but it does vary with each car and based on your dyno; as soon as the car gets nailed; it increases fuel to around 11.5-12.5:1 - perfect if you ask me!
mcccy005 is offline   Reply With Quote
Old 12-14-2004, 05:30   #3 (permalink)
Looking in YOUR bathroom.
 
Join Date: May 2002
Location: Adelaide
Age: 31
Posts: 3,287
Re: Help with air fuel ratios?

for NA you can run up to arround 13.5:1 safely, AFR's below 12.5:1 are usualy reserved for blown/turbo cars (or mine lol).

You could lean it out a touch, but your AFR's are reasonable and dont show the typical falcon trait for running at 10.5:1 (like mine and 1/2 of SA's cars as shown at DD3) under WOT. Clearly this is from a good macthing cam (DEV4) to your stock fuel maps
__________________
Ive been described as a vault of usless random knowledge.

Ill take it as a complement i think.............
Walkinshaw is offline   Reply With Quote
Old 12-14-2004, 12:14   #4 (permalink)
Jim Mock You Rock
 
Join Date: Jul 2004
Location: sYDNEY
Age: 46
Posts: 1,766
Re: Help with air fuel ratios?

Really?? So my ratios would not benefit from a chip? Can my low air fuel ratios be improved for better drivability? Also if im using bucketloads of fuel what would affect that at idle ego?
useless is offline   Reply With Quote
Old 12-14-2004, 13:06   #5 (permalink)
BOFH
 
Casper's Avatar
 
Join Date: May 2003
Location: Giving the finger to speedcams
Age: 43
Posts: 7,777
Re: Help with air fuel ratios?

Quote:
Originally Posted by useless
Really?? So my ratios would not benefit from a chip? Can my low air fuel ratios be improved for better drivability? Also if im using bucketloads of fuel what would affect that at idle ego?
Yes, they would benifit from a chip. They are a "tad" rich, not too bad though. Also remember that the chip can advance the ignition too (like turning a dizzy) which cant be done any other way in the AU. So not only would you get an optimum A/F ratio but an aggressive ignition. Now all you have to decide is if the benifits of slightly more power (we are not talking bucketloads) and a better throttle respose is worth the cash mate. 90% of the noticable gain would be made in the first 3000rpm.
__________________

Casper is offline   Reply With Quote
Old 12-15-2004, 04:20   #6 (permalink)
Jim Mock You Rock
 
Join Date: Jul 2004
Location: sYDNEY
Age: 46
Posts: 1,766
Re: Help with air fuel ratios?

I wonder how much they can give me from 60 kmph onwards? Iwonder what is possible? How much power can these guy give me below 100kmph at 60 80 100??
useless is offline   Reply With Quote
Old 12-15-2004, 05:43   #7 (permalink)
EMW ??? Whats missing ?
 
INJECTED250's Avatar
 
Join Date: Jul 2004
Age: 33
Posts: 1,092
Re: Help with air fuel ratios?

Why do they always plot with kmph. i hate that.. why carnt they graph with rpm in 1.1... pretty got figures there
__________________
EB FALCON
98 T5 gear box (was auto)
Wade 977b cam
3.7 lsd
AU bottem end
ELXR6 ported Head
PH4480 Pacemakers
INJECTED250 is offline   Reply With Quote
Old 12-15-2004, 06:19   #8 (permalink)
Jim Mock You Rock
 
Join Date: Jul 2004
Location: sYDNEY
Age: 46
Posts: 1,766
Re: Help with air fuel ratios?

The blue line iswhat i am getting now but air fuel ratios are the same as last time im geting 141.9 rwkws for now,but it is getting better every day.
useless is offline   Reply With Quote
Old 12-15-2004, 12:45   #9 (permalink)
RIP Sox.....
 
Soxx's Avatar
 
Join Date: Dec 2002
Location: Sydney
Age: 45
Posts: 2,580
Re: Help with air fuel ratios?

Quote:
Originally Posted by INJECTED250
Why do they always plot with kmph. i hate that.. why carnt they graph with rpm in 1.1... pretty got figures there
You only need to ask the dyno operator to plot in RPM.

Rick.
__________________
4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?
Soxx is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Putting an air pod on an XF EFI Jonny General Tech 1 05-31-2005 20:14
air fuel ratios??? useless Inline 6 Tech 62 09-14-2004 18:16
USA:Air bag rule turns 20 with mix of success, tragedy Stacy94PGT Ford Worldwide News 0 07-11-2004 05:20
MAF Modification *i2ayman* Windsor Tech 8 05-11-2004 20:55
Ford V8's jaytyn The Pub 8 08-28-2001 16:42

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 01:25.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.