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#1 | ||
Regular Member
Join Date: Jan 2008
Location: Australia
Posts: 187
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Hi there,
I tried to work with the search option to find out more about improving the fuel economy of the AU Falcon inline 6 engine. Maybe I put in the wrong search criteria but I couldn't find anything that made me happy in a way. So...i got a 157kw AU II Falcon Futura ( year 2000 ) and I'd like to improve the fuel economy a bit. The best bet would be LPG , I know... but the small things in live also help sometimes. What did you guys do to improve the fuel economy ? -different spark plugs ? -K&N airfilter ? -different air intake snorkel ? or is there probably a secret weapon against the gas guzzling? I don't expect much, but an improvement of 1-1.5 liter per 100 km would be a success. thank you in advance for any kind of help and information Swedishmoose |
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#2 | ||
THE Fairmont Ghia 75th
Join Date: Jun 2007
Location: S.E Suburbs, Melbourne, Victoria
Posts: 615
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plugs might help, i wouldnt say get a k&n as i think it sucks more juice if your after more economy. Not sure on the snorkel
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Current Ride : AUII Fairmont Ghia : 75th Anniversary Limited Edition
Current Mods-HD Built Gearbox+(Mirror Polished, Modified Valve Body), 2500rpm Hi-Stall Convertor(TCE Custom Built), BIG Trans Cooler, Braided Lines/Speedflow Fittings, 2.5" Exhaust, Custom CAI, Detailed UnderCarriage, Custom SQ Stereo Install. My Ride My Build Thread |
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#3 | ||
Fossil fuel consumer
![]() Join Date: Jul 2005
Location: Mod For: Pub, Bar, Sales Yard, Show 'N Shine, Photoshop, AU to BF, FG to FGX, Territory & Sports Bar
Posts: 17,038
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i've found fitting a decent set of headers to my cars always seems to improve fuel economy. However it also usually gives more power bandwidth available too, which, if you use, will make the economy worse :P
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#4 | ||
Petro-sexual
Join Date: Dec 2004
Location: Melbourne
Posts: 4,527
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What is your fuel economy at the moment?
The biggest improvement could be had from just replacing your O2 sensor if it is stuffed, or even the thermostat if it has failed and is keeping the engine from getting to operating temp. Theoretically extractors improve scavenging and therefore the efficiency of the burn in the combustion chamber. But as crackersINC stated, it can go either way depending on your foot. |
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#5 | ||
With da Warlords
Join Date: May 2006
Location: Orange NSW
Posts: 1,781
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A good quality exhaust with extractors will up your fuel economy, but as said above its also more tempting to put the boot in.
K & N would help a little, snorkel hmm maybe, dont' think you'd notice much there. Keep tyre pressures nice and high to minimise drag\friction. Probably the biggest factor playing into fuel economy would be driving style.
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You don't have to be faster than the bear, you just have to be faster than the slowest guy running from the bear. For Sale: Parachute. Only used once, never opened, small stain. Windsor Warlords AU III XR-8220 ![]() ![]() XR50T Ute - 300rwkw (give or take depending on the day)
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#6 | ||
FF.Com.Au Hardcore
Join Date: May 2008
Posts: 1,536
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^^^^^ what he said.
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#7 | ||
FF.Com.Au Hardcore
Join Date: Sep 2006
Posts: 721
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get a flash tuner and custom tune with economy in mind rather then power.
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#8 | |||
Critical Thinker
Join Date: Jan 2005
Location: Adelaide
Posts: 20,314
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Quote:
If your not interested at modding your car at all and are only interested in economy, a flash tune of your vehicle to obtain maximum economy from your stock setup would see marked improvements, as the factory setting for your car would err on the side of rich. The flash tune would be specifically tuned to your car and the fuel you use daily.
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"the greatest trick the devil pulled, is convincing the world he doesn't exist" 2022 Mazda CX5 GTSP Turbo 2018 Hyundai Santa Fe Highlander 1967 XR FALCON 500 Cars previously owned: 2021 Subaru Outback Sport 2018 Subaru XV-S 2012 Subaru Forester X 2007 Subaru Liberty GT 2001 AU2 75th Anniversary Futura 2001 Subaru GX wagon 1991 EB XR8 1977 XC Fairmont 1990 EA S Pak 1984 XE S Pak 1982 ZJ Fairlane 1983 XE Fairmont 1989 EA Falcon 1984 Datsun Bluebird Wagon 1975 Honda Civic |
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#9 | |||
Teh Baest
Join Date: Jan 2007
Location: Hills Area, NSW
Posts: 649
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Quote:
One of Joes tunes took my DTE up from an avg of around 420-450 to 600-650, driving the exact same routes and exact same style ![]() I have never EVER had economy like that, except for freeway driving. My current tune produces 141kW and I am still more fuel economical than i was prior to the tune (around 500km DTE now) and she is still running a little rich on the low end too, so once that gets fixed up, even more economy ![]() ![]()
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1999 Liquid Silver AU Show: XR6 Kit, Low, RDA Slotted's F&B, Fully Tabouli Sound System, Altezza Tailights (Good ones!) Go: K&N Pod w/ 3" intake, XR6T Snorkel, Pacie Comp 4480's, 2.5" Cat Back, CMS Stg2 Cam, Custom Tune, Tranny Cooler Coming..CMS Stg2A Cam, 68mm TB Later.. 4.5L w/ BOOOOOOOOOOST or XR6T or AUIII XR8 220 Currently: 151kW (165 on other dynos ![]() |
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#10 | |||
Critical Thinker
Join Date: Jan 2005
Location: Adelaide
Posts: 20,314
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Quote:
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"the greatest trick the devil pulled, is convincing the world he doesn't exist" 2022 Mazda CX5 GTSP Turbo 2018 Hyundai Santa Fe Highlander 1967 XR FALCON 500 Cars previously owned: 2021 Subaru Outback Sport 2018 Subaru XV-S 2012 Subaru Forester X 2007 Subaru Liberty GT 2001 AU2 75th Anniversary Futura 2001 Subaru GX wagon 1991 EB XR8 1977 XC Fairmont 1990 EA S Pak 1984 XE S Pak 1982 ZJ Fairlane 1983 XE Fairmont 1989 EA Falcon 1984 Datsun Bluebird Wagon 1975 Honda Civic |
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#11 | ||
Teh Baest
Join Date: Jan 2007
Location: Hills Area, NSW
Posts: 649
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The tune which changed by DTE to 620-650 had more top end than pre-tune, but lacked any balls whatsoever until around 2000rpm.
My current tune still lacks a bit down low, but DTE has improved by around 100km/tank over stocker (although i have only filled up once since the tune) and i broke 140 at the wheels and she goes pretty damn hard. Her AFR is around 11.9 at the moment in the bottom end, moves upto 13.0-13.1 mid-top end, so DTE should improve once the down low set up moves to around 13 also. I tell you what tho, she hauls ***... has little trouble against my mates mildly modded golf gti (after the initial second or two) and i think that runs high 14's
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1999 Liquid Silver AU Show: XR6 Kit, Low, RDA Slotted's F&B, Fully Tabouli Sound System, Altezza Tailights (Good ones!) Go: K&N Pod w/ 3" intake, XR6T Snorkel, Pacie Comp 4480's, 2.5" Cat Back, CMS Stg2 Cam, Custom Tune, Tranny Cooler Coming..CMS Stg2A Cam, 68mm TB Later.. 4.5L w/ BOOOOOOOOOOST or XR6T or AUIII XR8 220 Currently: 151kW (165 on other dynos ![]() |
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#12 | |||
Critical Thinker
Join Date: Jan 2005
Location: Adelaide
Posts: 20,314
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Quote:
__________________
"the greatest trick the devil pulled, is convincing the world he doesn't exist" 2022 Mazda CX5 GTSP Turbo 2018 Hyundai Santa Fe Highlander 1967 XR FALCON 500 Cars previously owned: 2021 Subaru Outback Sport 2018 Subaru XV-S 2012 Subaru Forester X 2007 Subaru Liberty GT 2001 AU2 75th Anniversary Futura 2001 Subaru GX wagon 1991 EB XR8 1977 XC Fairmont 1990 EA S Pak 1984 XE S Pak 1982 ZJ Fairlane 1983 XE Fairmont 1989 EA Falcon 1984 Datsun Bluebird Wagon 1975 Honda Civic |
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#13 | ||
FF.Com.Au Hardcore
Join Date: Feb 2005
Location: Melb north
Posts: 12,025
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drive smoothly and coast to traffic lights, smooth driving will also save driveline and brakes as well as fuel.
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#14 | ||
Regular Member
Join Date: Jan 2008
Location: Australia
Posts: 187
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Hello again....
thank you guys for all the replies... I guess I'll fix up a few things.... First I might stick with the basics and later on I'll do the more complicated part. By the way....can anyone explain what a flash tuner is ? Never heard of it. The last time I went 410 km and refueled 54 Liter. So it is roughly about 13.5 L / 100 km in the city. Thank you again The Moose |
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#15 | ||
Mr Polish
Join Date: Jan 2005
Location: Across the road from Speedway City
Posts: 1,977
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my best effort in the forte with 3.08 diff, stage 2 crow cam, extractors and single 2.5 inch zorst with lukey ultra flo muffler was 1175 km from burton to cobar in western NSW with about 40 km left on the DTE when we stopped to refuel
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#16 | ||
Fossil fuel consumer
![]() Join Date: Jul 2005
Location: Mod For: Pub, Bar, Sales Yard, Show 'N Shine, Photoshop, AU to BF, FG to FGX, Territory & Sports Bar
Posts: 17,038
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that's pretty incredibile economy... that's something the AU's are certainly renowned for, highway economy..
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#17 | ||
Just slidin'
Join Date: Sep 2005
Location: Brisvegas
Posts: 7,791
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Id say keep your tires pumped, new OXY sensor, new K&N filter, and a CAPA flash box (can get them from our sponsors) and an economy tune. Hell, I get 700k's to a tank, run 14's and have only a generic tune, so still have gains to be made.
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MD Mondeo - For the family
NP Pajero - For the adventure |
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