Fuel Consumption

[bakes70]

Can anyone tell me roughly how many k's I should get out of a full tank of fuel in a 97 RS4 Stagea in standard form.

I have just clocked my last ful tank at 360k's which seems very low?

If this is the can fault coil packs cause this high consumption as the car does not appear to be running rich. However I do have this pulsing problem over 70kmh as posted on another thread.

Does anyone have any ideas

Cheers

Bakes70

[IMPORTD]

ok when I bought my stag the SAFCII hadn't been tuned and I was getting around 400 per tank city driving and well over 500 per tank on the open highway (drove from SA to WA)

With it tuned now, I get 460 per tank... city driving.

I've got 345 on the clock with just over a quarter of a tank to go and I'll get atleast another 100km from it.

Thats on BP Ultimate (98ron)

Edited February 12, 2008 by StageaGirl

[_Ryan_]

380-450 for me, depends how much is low speed accl.

[bakes70]

ok when I bought my stag the SAFCII hadn't been tuned and I was getting around 400 per tank city driving and well over 500 per tank on the open highway (drove from SA to WA)

With it tuned now, I get 460 per tank... city driving.

I've got 345 on the clock with just over a quarter of a tank to go and I'll get atleast another 100km from it.

Thats on BP Ultimate (98ron)

Thanks for that. I have a stupid question now what is the SAFCII?

Also are you in Rockingham, Perth by any chance...if so were did you take your car to get tuned.

Cheers

Bakes70

[InterCooL]

i had shot coilpacks with my rb25. they gave chronic misfire on full throttle at 4000rpm and above. however this made me drive the car nicely so i still retained great economy.

remember it also matters how you drive it, i can get 20% better economy if i'm nice to my car.

check your 02 sensor, they're meant to be replaced every 40 000kms iirc

and google SAFCII to find out HEAPS of info

[Duncan]

bugger all mate, even when working perfectly they are thirsty if your foot is heavy.

and mine is. really heavy.

mine is manual, new 02 sensor, airfilter and exhaust on the standard computer, and I am happy if I get 400klm.

About to put a power fc in and see if that helps, but I'm not expecting an improvement

[Tangles]

360km isnt bad, honestly.

when I first got mine I got around 410kms per tank to around 55L

then tuned, a little less kms but more power

and again

and again

now Im limited to 90kms per quarter if I pussyfoot for 80% of the tank

the other 20% makes it worth it :laughing-smiley-014:

[Terminal]

I'm in the same boat as you Tangles, i'd be lucky to get 350 - 340km out of a tank of premium. I'm running the stock auto ecu with a manual though, I think I need an aftermarket ECU.

[bakes70]

360km isnt bad, honestly.

when I first got mine I got around 410kms per tank to around 55L

then tuned, a little less kms but more power

and again

and again

now Im limited to 90kms per quarter if I pussyfoot for 80% of the tank

the other 20% makes it worth it :laughing-smiley-014:

Cheers for that. I just wanted to get a handle on how thristy they are, and if my problem was fuel related.

[IMPORTD]

yeah I'm in Rockingham... I took my car to Hyper drive when I first got the car.

I also run 7-9psi now too, instead of 12 lol

Super Air Flow Controller (SAFC) it modifies the air flow meter signal to trick the ECU into thinking that there is less air going in to the engine, to send in less fuel, as the stock ECU tends to run quite rich with mods. (all that info from Mitchy)

[bakes70]

yeah I'm in Rockingham... I took my car to Hyper drive when I first got the car.

I also run 7-9psi now too, instead of 12 lol

Super Air Flow Controller (SAFC) it modifies the air flow meter signal to trick the ECU into thinking that there is less air going in to the engine, to send in less fuel, as the stock ECU tends to run quite rich with mods. (all that info from Mitchy)

I am in Rockingham too......I am running just under 7psi boost but everything else is pritty standard. Do you know anywere local that could tune the SAFC on my car.

Cheers

Paul

[chook]

SAFCs will have minimal effect on your economy, as when you are cruising (closed loop) the ECU reads the O2 sensor and constantly adjusts to achieve the preset mixture. The SAFC will save you some fuel when you are hard on the throttle (open loop), where it uses the air flow meter signal. A lot of tuners won't even bother to tune the low throttle map on the SAFCs, as mine did.

http://www.hondahookup.com/forums/showthread.php?t=92218

Other than an aftermarket ECU the best thing to do is make sure your engine is running as efficient as possible, ie new platinum plugs, new fuel filter and pump, new air filter, new O2 sensor, splitfire coil packs and drive 'off boost' whenever possible.

[STAG250]

did 650 km's (mostly extra urban) earlier this week before hitting reserve

[STAG250]

that was off 69.4 litres filled to the brim

[Terminal]

sounds like the M35 is a bit better on fuel than the old C34, might be time for an upgrade soon.

[bakes70]

did 650 km's (mostly extra urban) earlier this week before hitting reserve

Wow thats some difference

[JVP]

i get about 290-300

lol

stop start traffic mostly

[IMPORTD]

you could try X-Speed in o'connor. There is noone in rockingham, only ford/holden specialists... and I wouldn't trust them to even know what a Stagea is lol

You could try GTi Performance too in Bibra Lake...ask for Simon, I'm not sure if he does SAFC's though. He is a nice guy and owns an S15 or two lol

[jippa]

try cred. ask for mark and if there still doing the gredy emanage ultimate deal. was a bit over a grand for install and ecu

[hectic180]

I just got my 2000 auto rs4 on the road. I will be lucky to see 300km on this tank, Mix hwy and city driving. Car is auto. sounds rather low ?