Fuel consumption

[mitchy_]

just checking my average fuel consumption... i get maybe 300km to a tank (well full to empty which seems to be about 50L).. so about 6km/L.

mods i have are as follows...

microtech LT-12 ECU,

arc front mount intercooler,

hks boost guage + turbo timer,

twin plate clutch,

open air pod,

turbosmart bov,

3 1/2" straight through exhaust 4" tip.

dyno shows 200rwkW

when i bought the car i was told the ecu had just had a stock fuel map put on it due to lack of time, but it runs really rich.. so much that the back of my car has a black dusting on it less than a week after washing it, and you can smell the fuel wafting past as you stop at intersections and whatnot...

im guessing this isnt all too good fuel consumption, so getting the ecu remapped would be the only solution?

if so.. who/what/when/how much $$$ would i be looking at to get this rectified.

cheers in advance

[damono]

gees, i thought i had bad fuel consumption, but i get 420km off a full tank.

Similar mods but no ECU change and only 3" exh

[StuiE]

Im told Microtech's don't have closed loop, so even when cruising you would be using shitloads of fuel, if so then that's part of your problem

Maybe it's they way you drive when I first got my car a caned it and wondered why I was getting such crap economy. Months later when I drove much more sedately and was getting better economy, I realised why.

[mitchy_]

Im told Microtech's don't have closed loop, so even when cruising you would be using shitloads of fuel, if so then that's part of your problem

Maybe it's they way you drive when I first got my car a caned it and wondered why I was getting such crap economy. Months later when I drove much more sedately and was getting better economy, I realised why.

its actually stayed the same wether i thrash it or not (well.. mostly anyway)

there is a serious flat spot at the start of first gear, dumps a shitload of fuel, then takes off... can see it more prominently when you go to do a quick takeoff.. jumps off the line, then dies, then pick up again... thats where most of my fuel seems to be going.. moving from a stop..

[ric777]

around 19 mpg

[ix9]

Before my HKS 2535 and FMIC I used to get about 550km/tank (freeway driving)

Now with my newfound leadfoot (yes, I found it again after buying a new turbo) I get 280km's TOPS. Meh, I don't care, it's all good fun

[damono]

280km sheet...

My 420kms is with a leadfoot I admit

[pnblight]

you need to find out if the microtech has closed loop control ability

if it does you should check your o2 sensor as it is what the closed loop system runs off

closed loop is where the ecu switches from map to o2 sensor after a stable throddle position has been reached(cruising), then basically tunes to a ~14:1a/f ratio while steady throddle position remains.

hope that makes sence

pete