Fuel economy

A place for general discussion. Catch up with mates, post pics, or if you just want to pick on e-thugs.
Post Reply
OLD FART
Austarion Occupant
Posts: 3448
Joined: Sun Jun 19, 2005 1:34 pm
Location: Brisbane

Fuel economy

Post by OLD FART »

On the way to the Leyburn Sprints driveing in lightfoot mode I would have managed 580 klms out of the 75 litre tank :D 0r :( ?????
I've had mine since 03 07 92
85 JB 2323cc DOHC 4G63
THE OLDER I GET THE FASTER I WAS
GROWING OLD IS MANDATORY GROWING UP IS OPTIONAL
Top
User avatar
panda
Enthusiast
Posts: 680
Joined: Fri Apr 18, 2008 2:56 pm
Location: Mount Gambier, South Australia

Post by panda »

Thats 21.8 mpg (I dont understand L/100km) :) Its obviously tuned for power, not economy, as you can't have both.

panda
Dreams have no limits.

1982 JA - Ex Enthuzed
1982 JA - For Sale - pending
1983 JA - Ex Auto-cross car - being parted out
1983 JA - Being parted out
1984 JA - Rolling shell - For Sale
1985 JB - Rally car project
1985 JB - Autocross car
1985 JB - Week-end cruiser
Top
OLD FART
Austarion Occupant
Posts: 3448
Joined: Sun Jun 19, 2005 1:34 pm
Location: Brisbane

Post by OLD FART »

Lee has it on wideband and tuned for economy between 2-3000 rpms
I've had mine since 03 07 92
85 JB 2323cc DOHC 4G63
THE OLDER I GET THE FASTER I WAS
GROWING OLD IS MANDATORY GROWING UP IS OPTIONAL
Top
FST4RD
almost postwhore
Posts: 1223
Joined: Sat Dec 09, 2006 10:22 am
Location: Christchurch

Post by FST4RD »

Thats 12.93 litres per 100k's... that's pretty high.

Not comparible but my 1500cc sohc Mazda does about 7 litres per 100k's around town and it does better on the open road.
My old Evo1 with only filter and exhaust mods on the open road did about 8-9 litres per 100k's depending on whether it was around town or on the open road.
Sold - 1987 Mitsubishi Starion GSR V DASH
Current - 1995 Subaru Legacy TT SW
- 1983 Mitsubishi Starion
Top
User avatar
Alspos
Flucking kwankers
Posts: 4107
Joined: Thu Jan 08, 2004 2:09 pm
Location: Melbourne
Contact:
Contact Alspos

Post by Alspos »

Also depends what weight was in the car, fat tyres, camber and toe in and so forth. And how "spirited" any overtaking was etc.

I do recall I got around 650 km or so on 70 litres once upon a time, two up with one bag each just freeway cruising not in a hurry.
Top
docile
Big Dorifto
Posts: 74
Joined: Thu Jan 22, 2009 11:58 am
Location: Going round in circles!!

Post by docile »

FST4RD wrote:Thats 12.93 litres per 100k's... that's pretty high.
I agree. AFR should be around 15-16:1 for real economy driving which would see you at about 8Ls or so per 100k's
Top
OLD FART
Austarion Occupant
Posts: 3448
Joined: Sun Jun 19, 2005 1:34 pm
Location: Brisbane

Post by OLD FART »

Remember it has cams and a TO4B/GT35 + 870 CC injectors and a 3.9 diff
I've had mine since 03 07 92
85 JB 2323cc DOHC 4G63
THE OLDER I GET THE FASTER I WAS
GROWING OLD IS MANDATORY GROWING UP IS OPTIONAL
Top
User avatar
thrash
Austarion Occupant
Posts: 3028
Joined: Mon Apr 02, 2007 10:09 pm
Location: Sydney, Australia

Post by thrash »

is an afr of 15-16:1 safe for a hipo engine, even at low loads?
quest wrote:
WANTSOM wrote:Personally, I find sloppy boxes very unsatisfying. I like them tight and taught to the point that if you dont have to push to get it in then its probably too old and time to get a new one :P
don't try explaining that to her tho..... just leave. lol
Top
redzone
racking my brains
Posts: 5900
Joined: Thu Oct 06, 2005 10:46 pm
Location: sunshine coast qld
Contact:
Contact redzone

Post by redzone »

at cruise, yes.

engines get killed from detonation WAYYYYYYYY quicker than from lean mixtures..

thats good economy from something as cammy as your car Rad...
Fibreglass airdams $370, fibreglass front bumpers $260, reco drag links $165, alloy radiators $925 (unpolished), h/l switch rebuilds $125, all plus freight.
Coxs Automotive (07)54433507 3/5 Service st Maroochydore Q

www.facebook.com/coxsautomotive
www.coxsautomotive.com.au
Top
fugazi
Enthusiast
Posts: 716
Joined: Thu Oct 02, 2008 10:30 pm
Location: Stockholm, Sweden
Contact:
Contact fugazi

Post by fugazi »

13 liters/100km is acceptable on a car with that kind of power.
But... at low loads/cruise you could lean it a bit and still be safe!
Image
Top
User avatar
Alspos
Flucking kwankers
Posts: 4107
Joined: Thu Jan 08, 2004 2:09 pm
Location: Melbourne
Contact:
Contact Alspos

Post by Alspos »

I think the 3.9 is the issue here. You need another gear :)
Top
Post Reply

Return to “General Discussion”

Who is online

Users browsing this forum: No registered users and 19 guests