Remap = better MPG?? Definitive Answer Please!
#1
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Remap = better MPG?? Definitive Answer Please!
Hey guys
After a few weeks ownership of a 03 JDM Spec-c the poor MPG has taken me by suprise (i knew it was bad, just not this bad)
I am getting approx 200 miles to a tank (normal/granny driving).
The car is on the standard JDM map.
Now i have been told that these run very rich, and if i get a remap i will see 260-270 miles per tank.
Can anyone confirm this to me please?!?!?!?
As its gonna be the difference to keeping or selling the car.
Cheers
Mat
After a few weeks ownership of a 03 JDM Spec-c the poor MPG has taken me by suprise (i knew it was bad, just not this bad)
I am getting approx 200 miles to a tank (normal/granny driving).
The car is on the standard JDM map.
Now i have been told that these run very rich, and if i get a remap i will see 260-270 miles per tank.
Can anyone confirm this to me please?!?!?!?
As its gonna be the difference to keeping or selling the car.
Cheers
Mat
#4
I think you will find that it will improve the MPG.
Your map currently (if it hasnt been re-mapped for UK fuel already) will be tuned to run on 100+ Octane... the max we have is 99 (Tesco or V-Power) which are actually probably only 98+RON.
I would eat my car if you didnt get better MPG after a remap from a decent mapper. (terms and conditions apply)
Your map currently (if it hasnt been re-mapped for UK fuel already) will be tuned to run on 100+ Octane... the max we have is 99 (Tesco or V-Power) which are actually probably only 98+RON.
I would eat my car if you didnt get better MPG after a remap from a decent mapper. (terms and conditions apply)
#6
Ecu Specialist
You should get a noticable improvement if the car is mapped on the road as that allows the mapper to pay strict attention to the closed/openloop transition and low boost fueling which is where poor consumption normally comes from. Certainly its something I like to take a lot of trouble over.
cheers
bob
cheers
bob
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#9
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My 03STi standard 23 mpg, remapped 27 mpg. At 10000 miles per year saves 60 gallons at £4.50/gal = £270 saved. Remap can actually pay for itself over 2-3 years.
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Cheers for the replys, keep em coming!
I knew the Spec-c would be thirsty!
Normal driving, a-b is fine,a s you dont really notice it, and my trip to work is shortish, so i can make a tank last a week.
Its when u wanna go any sort of distance.
Like i went on a 350 mile round trip the other weekend, ended up costing me over 100 quid !!! Which is loads when u have to add that onto any trip you make!
I knew the Spec-c would be thirsty!
Normal driving, a-b is fine,a s you dont really notice it, and my trip to work is shortish, so i can make a tank last a week.
Its when u wanna go any sort of distance.
Like i went on a 350 mile round trip the other weekend, ended up costing me over 100 quid !!! Which is loads when u have to add that onto any trip you make!
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I get around 16mpg! But I drive it like it supposed to be? And whats the point in a remap if your going to take it steady! So I say no as my remap makes me drive harder.....
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I must be getting about 8 mpg but then my 2.5L is mental and that's with Bob helping me out with decent fuel map - my fault for wanting max horses for courses.
When I had my 2L first remapped she def was better on mpg and power, the exhaust was cleaner also which kinda goes to confirm the oe map from Subaru isn;t perfect - I think its to do with a "safe" setup for various fuels and driving conditions since some scooby owners use cheap fuel. When I went for my first turbo/injectors etc mod, the mpg was still better under normal driving conditions!! This only changed if you were using full boost and driving like an animal.
When I had my 2L first remapped she def was better on mpg and power, the exhaust was cleaner also which kinda goes to confirm the oe map from Subaru isn;t perfect - I think its to do with a "safe" setup for various fuels and driving conditions since some scooby owners use cheap fuel. When I went for my first turbo/injectors etc mod, the mpg was still better under normal driving conditions!! This only changed if you were using full boost and driving like an animal.
#15
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'05 JDM STi - 20/21mpg when I got it, with a basic UK fuel remap from Litchfield.
One decat Milltek/K&N filter/remap and its now 360bhp (near as darn it) and I get 22mpg. 20 miles extra per tank, or thereabouts.
All I need to do is drive 500,000 miles and the exhaust and remap costs are repaid
One decat Milltek/K&N filter/remap and its now 360bhp (near as darn it) and I get 22mpg. 20 miles extra per tank, or thereabouts.
All I need to do is drive 500,000 miles and the exhaust and remap costs are repaid
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'05 JDM STi - 20/21mpg when I got it, with a basic UK fuel remap from Litchfield.
One decat Milltek/K&N filter/remap and its now 360bhp (near as darn it) and I get 22mpg. 20 miles extra per tank, or thereabouts.
All I need to do is drive 500,000 miles and the exhaust and remap costs are repaid
One decat Milltek/K&N filter/remap and its now 360bhp (near as darn it) and I get 22mpg. 20 miles extra per tank, or thereabouts.
All I need to do is drive 500,000 miles and the exhaust and remap costs are repaid
#19
Classic again I'm afraid but:
97 UK car 208bhp standard 27.4mpg over 5000+ miles
240 - 290 during mods without properly suited map 25.8mpg 4500miles
305bhp finally sorted 27.1mpg 2000miles only so far but I'm driving more quickly of course. How can you not
Less scientifically I used to get about 24mpg round town in traffic and since remap I got 26.1mpg
97 UK car 208bhp standard 27.4mpg over 5000+ miles
240 - 290 during mods without properly suited map 25.8mpg 4500miles
305bhp finally sorted 27.1mpg 2000miles only so far but I'm driving more quickly of course. How can you not
Less scientifically I used to get about 24mpg round town in traffic and since remap I got 26.1mpg
#20
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jesus,i only get 180 miles out a full tank from my typeR and thats just being gentle but as said above they are expensive to keep and wouldnt change it for the world......well maybe a bit more reliability
#21
This was my dad driving it back from London for me, and believe me he aintg a fast driver, he said it never went above 3000 rpm and i believe him.
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i own a uk sti bug eye MY52 i have had it around 6 weeks and have only ever filled it up once and that was to go on a 320 mile round trip to wales and back
and i managed to squeeze 320 mile out of a full tank
kept it around 70-80 on the motorway and run it on shell v-power
on short trips to work and back all week it will do around 115 mile on £20 with a couple of 5 car over takes down the lanes
dont know what bhp my car is
it has 4 inch exhaust,induction kit, and bailey dumper
dont tend to drive it like i stole it
do they get better mpg on or off boost....???
and i managed to squeeze 320 mile out of a full tank
kept it around 70-80 on the motorway and run it on shell v-power
on short trips to work and back all week it will do around 115 mile on £20 with a couple of 5 car over takes down the lanes
dont know what bhp my car is
it has 4 inch exhaust,induction kit, and bailey dumper
dont tend to drive it like i stole it
do they get better mpg on or off boost....???
#23
I used to run my JDM classic on optimax and booster and get about 23mpg, after an Apexi and remap at Zen, I now get about 27mpg.
On a recent trip to the ring, I thought my fuel gauge was knackered when I was getting around 300 miles per tank on the drive there
On a recent trip to the ring, I thought my fuel gauge was knackered when I was getting around 300 miles per tank on the drive there
#25
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the only factor that will make mpg worse is the temptation to use the extra power more.
mine is more economical now than the day I bought it and power is up substantially
Got 30mpg recently on long run to Nurburg and regularly get 270 + to a tank from short trips, ocassional blasts and town driving.
mine is more economical now than the day I bought it and power is up substantially
Got 30mpg recently on long run to Nurburg and regularly get 270 + to a tank from short trips, ocassional blasts and town driving.