Mpg on a modified impreza
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Mpg on a modified impreza
Hello all,
I have not owned my Impreza long, but I have noticed that the mpg is far worse than I expected. Average is around 18 with the most I can achieve on a run being around 22 on a run sitting at 60mph!
The previous owner was not the owner who carried out the modifications and as such did not know much about them.
The turbo is a garret so has been changed at some point, the previous owner claimed the car had a custom map by ECU Tech, (it has switchable power via the rear window heater)
Can anyone explain my poor fuel economy?! (I have owned thirsty cars in the past r32, 330ci, but this is on another level!
Thanks all
I have not owned my Impreza long, but I have noticed that the mpg is far worse than I expected. Average is around 18 with the most I can achieve on a run being around 22 on a run sitting at 60mph!
The previous owner was not the owner who carried out the modifications and as such did not know much about them.
The turbo is a garret so has been changed at some point, the previous owner claimed the car had a custom map by ECU Tech, (it has switchable power via the rear window heater)
Can anyone explain my poor fuel economy?! (I have owned thirsty cars in the past r32, 330ci, but this is on another level!
Thanks all
#2
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Hello all,
I have not owned my Impreza long, but I have noticed that the mpg is far worse than I expected. Average is around 18 with the most I can achieve on a run being around 22 on a run sitting at 60mph!
The previous owner was not the owner who carried out the modifications and as such did not know much about them.
The turbo is a garret so has been changed at some point, the previous owner claimed the car had a custom map by ECU Tech, (it has switchable power via the rear window heater)
Can anyone explain my poor fuel economy?! (I have owned thirsty cars in the past r32, 330ci, but this is on another level!
Thanks all
I have not owned my Impreza long, but I have noticed that the mpg is far worse than I expected. Average is around 18 with the most I can achieve on a run being around 22 on a run sitting at 60mph!
The previous owner was not the owner who carried out the modifications and as such did not know much about them.
The turbo is a garret so has been changed at some point, the previous owner claimed the car had a custom map by ECU Tech, (it has switchable power via the rear window heater)
Can anyone explain my poor fuel economy?! (I have owned thirsty cars in the past r32, 330ci, but this is on another level!
Thanks all
tbh buying a impreza **** fuel is standard tbh
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Should have mentioned that the sti is a 2004 and is running an "estimated" 350bhp, all as I know is its fast.
I was hoping for 28mpg on a run, I would be ecstatic with 30. But 22 is un sustainable!
It pops and bangs a lot on over run, prehapse a sign of running rich?
I was hoping for 28mpg on a run, I would be ecstatic with 30. But 22 is un sustainable!
It pops and bangs a lot on over run, prehapse a sign of running rich?
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#8
Mine is 330 bhp 05 STI,mapped on V-Power,I usually get around 90 miles for 30 quids worth-whatever that works out to,as someone said earlier,Impreza is the wrong car if you are worried about MPG
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Cheers for the replies, I am doing quite a few business miles at the moment, which has got me thinking about Mpg, I'm not usually too concerned!
It would seem that 22mpg even at 60mph is normal ish?
Yes it is the 6spd.
So no one has managed to get even 28 out of their Sti?
I think I will need a diesel daily drive if I'm going to keep the scoob
It would seem that 22mpg even at 60mph is normal ish?
Yes it is the 6spd.
So no one has managed to get even 28 out of their Sti?
I think I will need a diesel daily drive if I'm going to keep the scoob
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My E90 M3 average 17mpg and my previous E60 M5 average 11.5 mpg ( that is what one calls thirsty!! ), my P1 running 480-500 bhp only get over 20 mph if I drive it sensibly !
Last edited by bighead; 03 December 2013 at 01:50 AM.
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im running a 09 330s with fully forged block mapped to 360hp and id say 22 is pretty standard, although you can get 24mpg out of it when just potering around and motroway cruising.
17-19 is usual when giving it the guts which lets be honest is why we all bought these types of cars.
i was a bit different im very good at crashing RWD cars so these seemed like a good option for my lack of driving skill
17-19 is usual when giving it the guts which lets be honest is why we all bought these types of cars.
i was a bit different im very good at crashing RWD cars so these seemed like a good option for my lack of driving skill
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Cheers for the replies, I am doing quite a few business miles at the moment, which has got me thinking about Mpg, I'm not usually too concerned!
It would seem that 22mpg even at 60mph is normal ish?
Yes it is the 6spd.
So no one has managed to get even 28 out of their Sti?
I think I will need a diesel daily drive if I'm going to keep the scoob
It would seem that 22mpg even at 60mph is normal ish?
Yes it is the 6spd.
So no one has managed to get even 28 out of their Sti?
I think I will need a diesel daily drive if I'm going to keep the scoob
had a lambda sensor go on mine and was doing 12-15mpg!! But carnt buy a performance car and worry about runnjng and service costs
#18
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If you want to drive one of these economically you need a boost gauge, just keeping it below 3k rpm is not enough, you need to be able to see when your boosting in every gear, if your clever with the gas pedal and over run you can get quite good mpg.
First thing you need to do is take away the pops and bangs as it's over fueling that gives you them on over run so your burning fuel when you could be saving it.
Mine is a WRX PPP but I average 28mpg with mixed driving when i'm being sensible and 34+ on a run at 3k rpm which equals 80mph, but you have to pay attention to the boost gauge.
First thing you need to do is take away the pops and bangs as it's over fueling that gives you them on over run so your burning fuel when you could be saving it.
Mine is a WRX PPP but I average 28mpg with mixed driving when i'm being sensible and 34+ on a run at 3k rpm which equals 80mph, but you have to pay attention to the boost gauge.
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If you want to drive one of these economically you need a boost gauge, just keeping it below 3k rpm is not enough, you need to be able to see when your boosting in every gear, if your clever with the gas pedal and over run you can get quite good mpg.
First thing you need to do is take away the pops and bangs as it's over fueling that gives you them on over run so your burning fuel when you could be saving it.
Mine is a WRX PPP but I average 28mpg with mixed driving when i'm being sensible and 34+ on a run at 3k rpm which equals 80mph, but you have to pay attention to the boost gauge.
First thing you need to do is take away the pops and bangs as it's over fueling that gives you them on over run so your burning fuel when you could be saving it.
Mine is a WRX PPP but I average 28mpg with mixed driving when i'm being sensible and 34+ on a run at 3k rpm which equals 80mph, but you have to pay attention to the boost gauge.
It must be the way it is mapped.. What's the best way to check if the map is to blame?
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I can't see how I can drive any more economically, 23 mpg is sitting at 60mph in 6th Gear!
I do have a boost gauge, the car is quite laggy bellow 3.5k so it's easy to drive without boost
I do have a boost gauge, the car is quite laggy bellow 3.5k so it's easy to drive without boost
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My 05 Wrx running at 286 bhp (obviously mapped lol) will do 30mpg on a long run on motorway (best) and 26mpg normal driving to work - a bit of 40mph to 60. Not sure if an Sti can achieve these figures? The sti boys here will know.
Phil
Phil
#26
I feel my wrx is fairly bad on fuel, I heard people seem to be able to get around 230ish miles to a tank.
Was expecting it to be slightly better than my evo anyway which id normally get about 200 to a tank with mixed driving and giving it abit of welly of roundabouts now and again.
Currently just pass 80miles to half a tank. Best ive had to a tank so far is 190miles with same driving ways as my evo, although with Scooby being more laggy, find it easier to keep off boost so id of expected it to be slightly better.
Will most likely get another remap soon anyways see if can be improved at all
Was expecting it to be slightly better than my evo anyway which id normally get about 200 to a tank with mixed driving and giving it abit of welly of roundabouts now and again.
Currently just pass 80miles to half a tank. Best ive had to a tank so far is 190miles with same driving ways as my evo, although with Scooby being more laggy, find it easier to keep off boost so id of expected it to be slightly better.
Will most likely get another remap soon anyways see if can be improved at all
Last edited by oli_p; 03 December 2013 at 10:27 PM.
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Make sure the brakes are nt binding!!its all about the smiles per miles im afraid i run an
l reg micra and 02 audi a4tdi as daily drives could nt afford to run my scoob as a daily driver.
l reg micra and 02 audi a4tdi as daily drives could nt afford to run my scoob as a daily driver.
#28
don't believe brakes are binding, just passed any MOT and nothing was said. Day I drove it home 170miles were motorway, and only achieved 250-260 from that tank.
From what ive gather people generally say impreza's are a tad better on fuel than what evo's are. Ran the evo fine as a daily for 16months.
Have a feeling the pops and bangs aren't helping, specially with it popping between 2.5k-4k on overrun
From what ive gather people generally say impreza's are a tad better on fuel than what evo's are. Ran the evo fine as a daily for 16months.
Have a feeling the pops and bangs aren't helping, specially with it popping between 2.5k-4k on overrun