K04 economy vs K03 turbo

[vag12]

Am thinking of converting to k04 soon but just wondering how the fuel would be on a normal run?
For examle cruising on the motorway at lets say 70mph shoudnt the k04 return with better mg due to later spool up?
Also is it possible for a mapper to set the turbo spool in a little higher up the rev as for city cruising i would want to stay off the turbo as much as possible when not driving it hard.

[GrayMK5GTI]

Am thinking of converting to k04 soon but just wondering how the fuel would be on a normal run?
For examle cruising on the motorway at lets say 70mph shoudnt the k04 return with better mg due to later spool up?
Also is it possible for a mapper to set the turbo spool in a little higher up the rev as for city cruising i would want to stay off the turbo as much as possible when not driving it hard.

If you compare official figures for the regular GTI and the edition 30, there's around 1mpg difference 

[56OctyVRS]

Really its how you drive a car as to how economical it would be. However I wouldnt fit a k04 turbo for economy. You would savevmore money by not getting a conversion than you ever would on fuel costs.

[gazon69]

It baffles me why people want better fuel economy from a k04, it aint gonna happen. As said above, you would save more money not having it done, and yes it can be mapped as you put in your post as mine is very similar.

[vag12]

I know I am not after crazy economy I just wanted to know the real world differences between the 2.
So when does your turbo come in at gazon69?

[micky 32]

It baffles me why people want better fuel economy from a k04, it aint gonna happen. As said above, you would save more money not having it done, and yes it can be mapped as you put in your post as mine is very similar.

Revo stage 3 KO4 converted car vs Revo stage 2+ KO3 is actually 2 or 3 mpg more economical

[gazon69]

I know I am not after crazy economy I just wanted to know the real world differences between the 2.
So when does your turbo come in at gazon69?

Turbo still comes in when it should but torque is held off untill later on in the rev range, bit like a vtech now, but much quicker 

[GrayMK5GTI]

I know I am not after crazy economy I just wanted to know the real world differences between the 2.
So when does your turbo come in at gazon69?

Turbo still comes in when it should but torque is held off untill later on in the rev range, bit like a vtec now, but much quicker  

Fixed that for you  

[gazon69]

Ahhhhh thanks mate 

[GarethB]

It baffles me why people want better fuel economy from a k04, it aint gonna happen.

Early days, but (when driven sensibly) there doesn't seem to be much in it. I'd be inclined to agree with Micky and say that it may be ever so slightly better with the K04 (when driven sensibly).

Driving sensibly is the tough part 

[gazon69]

It baffles me why people want better fuel economy from a k04, it aint gonna happen.

Early days, but (when driven sensibly) there doesn't seem to be much in it. I'd be inclined to agree with Micky and say that it may be ever so slightly better with the K04 (when driven sensibly).

Driving sensibly is the tough part 

Best i have seen with the k04 was going to edition 38 and that was 32mpg best i had with k03 was 36mpg

[RedRobin]

.
If someone is considering a K04 vs K03 car regarding fuel economy, I think it may be more appropriate to buy a completely different kind of car and one which delivers serious fuel economy. GTI's/Ed30's etc are designed to be enjoyed without too much concern about the mpg.

[GarethB]

Best i have seen with the k04 was going to edition 38 and that was 32mpg best i had with k03 was 36mpg

Best i've seen so far is about 26mpg 

[vag12]

Well I have seen 38-40mpg with k04 on the motorway with cruise control on sitting strictly at 70mph which was before the map for the k04, now post map its around 30-35mpg same speed.
My question was if it is able to make the turbo come in slightler higher up the rev range to enable even better economy as I do loads of miles and no I really don't want another car the gti is the car for me to provide performance and give back decent returns on fuel economy which is what it is doing but trying to improve it further

[martziniuk]

I see 32-33mpg pretty regularly in summer, saw 34mpg on a couple of tanks in August. The K04 is maybe 1-2mpg down on the K03 ( all calculated figures, not trip computer).