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Author Topic: poor MPG STILL... after changing so many parts  (Read 17553 times)

Offline rtechniki

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Re: poor MPG STILL... after changing so many parts
« Reply #60 on: November 27, 2012, 08:39:25 pm »
LOL

When your ready let me know, I will book you in for eco driver training and pump your tyes up.  :P





I will fully check the car out for you smoke test it and try another maf,    I can also do you a lean burn cruise map at the exact rpm, load TPS where your cruise speed is and see if we can end up getting your 80mph cruise upto 40mpg.. :star:

Nick
Nick Gower
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Hinckley 01455 617233
Bespoke ECU Software for 1.8T & 2.0TFSI

Offline rich83

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Re: poor MPG STILL... after changing so many parts
« Reply #61 on: November 27, 2012, 08:41:27 pm »
LOL

When your ready let me know, I will book you in for eco driver training and pump your tyes up.  :P





I will fully check the car out for you smoke test it and try another maf,    I can also do you a lean burn cruise map at the exact rpm, load TPS where your cruise speed is and see if we can end up getting your 80mph cruise upto 40mpg.. :star:

Nick

Is that witchcraft nick?

Offline driver rider

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Re: poor MPG STILL... after changing so many parts
« Reply #62 on: November 27, 2012, 09:05:03 pm »
LOL

When your ready let me know, I will book you in for eco driver training and pump your tyes up.  :P





I will fully check the car out for you smoke test it and try another maf,    I can also do you a lean burn cruise map at the exact rpm, load TPS where your cruise speed is and see if we can end up getting your 80mph cruise upto 40mpg.. :star:

Nick

Is that witchcraft nick?

If you can do that get his car doing 40mpg at 80 mph ill be mighty impressed.  I'll also be arranging a trip to you even sooner!  :drool:
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Offline rtechniki

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Re: poor MPG STILL... after changing so many parts
« Reply #63 on: November 27, 2012, 09:30:11 pm »
LOL

When your ready let me know, I will book you in for eco driver training and pump your tyes up.  :P





I will fully check the car out for you smoke test it and try another maf,    I can also do you a lean burn cruise map at the exact rpm, load TPS where your cruise speed is and see if we can end up getting your 80mph cruise upto 40mpg.. :star:

Nick

Is that witchcraft nick?

If you can do that get his car doing 40mpg at 80 mph ill be mighty impressed.  I'll also be arranging a trip to you even sooner!  :drool:


I did a lean burn map on my old 1.8T which was just under 400bhp, and would do around 52mpg sitting at 75mph in 5th on the motorway.  I just found my cruise driving variables and then at them points in my map ran a lean spot and set map to run map pressure just over zero with strong timing in a window of 600rpm.  (not going to keep green EU nobs happy) 
   
Even just by having a full 1:1 linear throttle load map can return 3-4 mpg,  The Focus STs which I write maps for under HEX+ are seeing on average 50mile extra per tank just from a 1:1 throttle load map.

I never really looked in to eco stuff with Tfsi yet
Nick Gower
R-Tech Performance Tuning
Hinckley 01455 617233
Bespoke ECU Software for 1.8T & 2.0TFSI

Offline zerolag

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Re: poor MPG STILL... after changing so many parts
« Reply #64 on: November 28, 2012, 12:13:56 pm »
Does lean burning send EGT's up on standard exhuast?

Offline GrayMK5GTI

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Re: poor MPG STILL... after changing so many parts
« Reply #65 on: November 28, 2012, 01:02:31 pm »
LOL

When your ready let me know, I will book you in for eco driver training and pump your tyes up.  :P





I will fully check the car out for you smoke test it and try another maf,    I can also do you a lean burn cruise map at the exact rpm, load TPS where your cruise speed is and see if we can end up getting your 80mph cruise upto 40mpg.. :star:

Nick

Is that witchcraft nick?

If you can do that get his car doing 40mpg at 80 mph ill be mighty impressed.  I'll also be arranging a trip to you even sooner!  :drool:


I did a lean burn map on my old 1.8T which was just under 400bhp, and would do around 52mpg sitting at 75mph in 5th on the motorway.  I just found my cruise driving variables and then at them points in my map ran a lean spot and set map to run map pressure just over zero with strong timing in a window of 600rpm.  (not going to keep green EU nobs happy) 
   
Even just by having a full 1:1 linear throttle load map can return 3-4 mpg,  The Focus STs which I write maps for under HEX+ are seeing on average 50mile extra per tank just from a 1:1 throttle load map.

I never really looked in to eco stuff with Tfsi yet

Mine still achives 40+mpg if i set cruise control at 70bhp  :grin:

If you can make it better than that, you'd be a hero  :notworthy:
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Offline BurtonGTI

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Re: poor MPG STILL... after changing so many parts
« Reply #66 on: November 28, 2012, 05:31:41 pm »

Mine still achives 40+mpg if i set cruise control at 70bhp  :grin:

If you can make it better than that, you'd be a hero  :notworthy:

I dont have the image of the average MPG, but it was 51mpg. but i have the image of the trip of the tank from full to empty.




Offline GrayMK5GTI

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Re: poor MPG STILL... after changing so many parts
« Reply #67 on: November 28, 2012, 05:53:30 pm »
^^  :congrats: great effort!

That must be a 40-60mph run surely, I only get averages like that going through 50mph sections on the motorway  :confused:
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Offline jedi-knight83

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Re: poor MPG STILL... after changing so many parts
« Reply #68 on: November 28, 2012, 06:11:04 pm »
I hate you all.

Disconnected my MAF and initially I thought it made a good difference but on the 2nd trip with it disconnected it was just as bad as before.

Need to get over to Nick ASAP
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Offline scopes

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Re: poor MPG STILL... after changing so many parts
« Reply #69 on: November 28, 2012, 07:01:56 pm »
How many MPG are you getting now?
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Offline jedi-knight83

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Re: poor MPG STILL... after changing so many parts
« Reply #70 on: November 28, 2012, 07:19:31 pm »
How many MPG are you getting now?

got 28mpg over 60 miles of mixed driving when i first disconnected it

then 25mpg over 60 miles of 80mph driving on the way home.
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Offline scopes

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Re: poor MPG STILL... after changing so many parts
« Reply #71 on: November 28, 2012, 07:46:26 pm »
I get about the same, havent been on a 60 mile drive at 70-80 for a wee while to compare  :driver:

Really hard to tell now the weather is so cold...
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Offline zerolag

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Re: poor MPG STILL... after changing so many parts
« Reply #72 on: November 28, 2012, 08:35:05 pm »
Have you tested the MPG the old fashion way rather than rely on the computer?...

You can change the MPG output via VCDS if I remember rightly - can't remember the setting off the top of my head, but it's in there somewhere.

Esp. nice if you want to see better MPG whilst still hooning it. :signLOL:

Offline keano

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Re: poor MPG STILL... after changing so many parts
« Reply #73 on: November 28, 2012, 10:46:15 pm »
Don't know if this helps mate, but I get 38- 40mpg on my 50mile daily round trip :ashamed:  :evilgrin:

Ps. That is barely touching the throttle though.

Offline geordie56

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Re: poor MPG STILL... after changing so many parts
« Reply #74 on: November 28, 2012, 11:15:41 pm »
Can i just say without it meaning to say bad, why buy a perfermance car and then chase mpg numbers? If thats what is really wanted go down the oil burner route and still get decent performance but a lot better mpg. Just my 2 pence worth. :happy2: