Fuel Economy

[macka'sxr6t]

Guy's I was wondering if people that have purchased the EDIT have seen an increase in fuel economy.

It would be interesting see who have the best fuel economy.

The members who had a custom tune.

Or the members who have used the generic tune that comes from CAPA.

And how much of an improvement it is from the stock tune.

I know that when I was using the piggy backs I was getting 760km from a full tank of fuel in my Ute, compared to 580km when the Ute was stock.

It will be interesting to see how the EDIT compares to piggybacks in this area. The Tuners seem to be getting the results with HP. I've not seen or heard any mention about economy results.

With the price of premium fuel rising, this is as important as power.

macka

[JB]

You must have read my mind Macka, was going to post this up myself.

Unfortunately my fuel economy is poor, I have dropped about 100km out of a tank, and before anyone asks I have been driving it like a baby to try to achieve the best economy possible.

Can people when giving their results talk in KM per tank not L per 100 as your avg fuel read outs can and will be wrong. Give us your gut feel.

At the moment I am pushing to get 300km per tank city, and 400km per tank hwy, previously 400km around town 500km hwy.

Oh BTW - Manual T5.

[BAturb]

so far with the edit I am getting around 450 hard driven km's from a tank in the ute around town, no hwy driving yet

[C.S.I]

I get the same before and after the HPF Edit if driven for economy (if theres such a thing in a T). About 500km / tank mostly country driving. (SSS Sedan)

Basically when under cruise conditions, the beasts run closed loop, therefor should vary sweet FA from stock to any Edit (Custom or otherwsie). Was told by Rob that they MAY be able to make it a LITTLE better at cruise, but I havent seen it.

Once out of closed loop, that's where the consumption really occurs, and with another 45 odd rwkw over stock, it drinks way faster under a flogging.

With a piggyback bender, you could get better cruise economy by leaning out the A/F ratios. I dunno if that's what happens with unichip / xede etc , or their respective tuning houses. This would be much harder to do with the Edit me thinks.

[macka'sxr6t]

450 km out of a 80Lt tank of fuel does not sound good. I have never had this low mileage reading when I was using the Xede or EMS. They developed both Hp and economy increase over the stock factory PCM tune.

It might be early to make assumptions but I thought this might be the case. With everyone obsessed with HP.

With the piggy back you could acheive both to a certain point. And is one thing that concerns me about the Edit. Simon from Nizpro has stated that economy is not good at the moment. Don't get me wrong I will be using the Edit but I will be asking the tuner to work on fuel economy tuning more so than outright power. Been there and broke to many things

I will only be running a tune with 8 psi max boost. I might not fully understand how the Edit works at the moment. The way I understood it, I thought that if you demanded a certain A/F ratio then the PCM would alter fuel flow and timing to acheive this demand in the software.

macka

[C.S.I]

The way I understood it, I thought that if you demanded a certain A/F ratio then the PCM would alter fuel flow and timing to acheive this demand in the software.

macka

<{POST_SNAPBACK}>

Macka, your right, although its the maps in the PCM Edit that determine the A/F ratio, once out of closed loop. It is the maps that's determine throttle/timing/injector/boost etc.

that's where the custom tune comes in.

I mentioned this to Rob at HPF when I got my edit. I made him aware that I was after economy every bit as much as I wanted more power.

Satisfied I got both.

[macka'sxr6t]

The way I understood it, I thought that if you demanded a certain A/F ratio then the PCM would alter fuel flow and timing to acheive this demand in the software.

macka

<{POST_SNAPBACK}>

Macka, your right, although its the maps in the PCM Edit that determine the A/F ratio, once out of closed loop. It is the maps that's determine throttle/timing/injector/boost etc.

that's where the custom tune comes in.

I mentioned this to Rob at HPF when I got my edit. I made him aware that I was after economy every bit as much as I wanted more power.

Satisfied I got both.

<{POST_SNAPBACK}>

If your only acheiving the same mileage as a stock T, I would'nt consider this a good result. Back when I was running the Xede with standard injectors and running 8 psi of boost I gained 55 rwkw. 183 - 238 rwkw and went from 580 km per tank to 760 km per tank. I would expect that the PCM to be able to achieve the same outcome in economy. It certainly produces the same level of power.

They say these cars a running very rich from the factory, so running a leaner A/F ratio should gain an increase in economy and power using the same amount of boost in closed loop.

I fully understand that once you plant your right foot most of this goes out the window. I do see this as an area where the piggyback has the advantage for the moment anyway.

macka

[ktford]

Geez increased thirst coupled with the massive 65ltr tank, WOW great news, NOT

Scotty

p.s. My car showed 7.7 k's per litre when new, it dropped to 7.0 when I fitted the KnN filter with my 2nd air I take. All the extra power I make now hasn't changed in at all.

[maximum_velocity]

Geez increased thirst coupled with the massive 65ltr tank, WOW great news, NOT

Scotty

p.s. My car showed 7.7 k's per litre when new, it dropped to 7.0 when I fitted the KnN filter with my 2nd air I take. All the extra power I make now hasn't changed in at all.

<{POST_SNAPBACK}>

that's coz u drive like a girl

[macka'sxr6t]

Geez increased thirst coupled with the massive 65ltr tank, WOW great news, NOT

Scotty

<{POST_SNAPBACK}>

Tht's my point to Scotty It's all very well to have 280 rwkw but at what cost to the backa pocket.

Might not have been an issue when Premium was around $1 - $1.10 a litre. But fuel is going to only get more expensive. And these cars know how to swallow it. At a $100 + to refill an empty tank it has to be a consideration.

If the Edit cannot achieve economy as well as performance I'll just keep my piggyback in the cupboard for now.

macka