Re-Mapping, your experiences.
Discussion
troc said:
Jimmy No Hands said:
There's no substantial gain in remapping a NA petrol 1.6.
Not always entirely true, the first generation BMW MINI Cooper and One both used the same engine in a different state of tune. It's very easy to remap the 90bhp One to a 120bhp Cooper equivalent and the difference in noticeable. Where you are right of course is that remapping a Cooper from it's original 115bhp to 120 or so is a waste of time 
The thing is with 'remapping' is that loads of people think, "YEAH! that's amazing" but infact, it's not quite as good as they first thought. I want to know how my car is fueling, what boost where in the rev range etc etc etc. I may not understand it all, but I god-dam don't want it to be a pile of s
t.
As an example, I tried a remap on my car. It was too aggressive low down, and the throttle was near enough on OR off. Partial throttle would result in accelerating nicely, accelerating nicely, WOAH ACCELERATING A LOT. What is the point, when my right foot has not requested that. Yes it FELT quick, but it wasn't any quicker than the standard map on the car ( I timed it quite a few times
) This would give anyone who wasn't into their cars the thought that their car is a lot quicker etc etc.
I doubt many people understand how important the bigger picture is of the whole map, as opposed to how 'quick' it makes your car go/feel.
I don't want to come across as a dick or a know-it-all, I know i'm not (the second one at least!), and i'll happily admit (GOOD!) remaps are excellent bang/buck.
t.As an example, I tried a remap on my car. It was too aggressive low down, and the throttle was near enough on OR off. Partial throttle would result in accelerating nicely, accelerating nicely, WOAH ACCELERATING A LOT. What is the point, when my right foot has not requested that. Yes it FELT quick, but it wasn't any quicker than the standard map on the car ( I timed it quite a few times
) This would give anyone who wasn't into their cars the thought that their car is a lot quicker etc etc.I doubt many people understand how important the bigger picture is of the whole map, as opposed to how 'quick' it makes your car go/feel.
I don't want to come across as a dick or a know-it-all, I know i'm not (the second one at least!), and i'll happily admit (GOOD!) remaps are excellent bang/buck.
Stedman said:
The thing is with 'remapping' is that loads of people think, "YEAH! that's amazing" but infact, it's not quite as good as they first thought. I want to know how my car is fueling, what boost where in the rev range etc etc etc. I may not understand it all, but I god-dam don't want it to be a pile of st.
As an example, I tried a remap on my car. It was too aggressive low down, and the throttle was near enough on OR off. Partial throttle would result in accelerating nicely, accelerating nicely, WOAH ACCELERATING A LOT. What is the point, when my right foot has not requested that. Yes it FELT quick, but it wasn't any quicker than the standard map on the car ( I timed it quite a few times ) This would give anyone who wasn't into their cars the thought that their car is a lot quicker etc etc.
I doubt many people understand how important the bigger picture is of the whole map, as opposed to how 'quick' it makes your car go/feel.
I don't want to come across as a dick or a know-it-all, I know i'm not (the second one at least!), and i'll happily admit (GOOD!) remaps are excellent bang/buck.
Indeed. Your map is only as good as your mapper.t.As an example, I tried a remap on my car. It was too aggressive low down, and the throttle was near enough on OR off. Partial throttle would result in accelerating nicely, accelerating nicely, WOAH ACCELERATING A LOT. What is the point, when my right foot has not requested that. Yes it FELT quick, but it wasn't any quicker than the standard map on the car ( I timed it quite a few times
) This would give anyone who wasn't into their cars the thought that their car is a lot quicker etc etc.I doubt many people understand how important the bigger picture is of the whole map, as opposed to how 'quick' it makes your car go/feel.
I don't want to come across as a dick or a know-it-all, I know i'm not (the second one at least!), and i'll happily admit (GOOD!) remaps are excellent bang/buck.
I got a box you plug into OBD to download existing map, emailed it to remapper, they emailed the revised map back same day, uploaded to car via box/OBD job done. Difference was very noticeable, slight flat spot at 1700rpm gone, broader bigger spread of torque, 15-20% increase in BHP/torque and no fuel penalty. Very happy. I now have around 230/240 bhp (I went for a mild tweak)
Last month still managed 36mpg (manually calculated brim to brim) and that included a LOT of short journeys (2 miles) which kill diesel economy. Mostly I get bang on 40mpg again on shortish journeys which is not bad for a 3 litre.
ETA I still have the original map and can switch back and forth between maps with a 5 minute up/download so for MOT's and servicing it reverts to standard. Although in saying that I forgot to change for the last MOT and it passed without issue.
Last month still managed 36mpg (manually calculated brim to brim) and that included a LOT of short journeys (2 miles) which kill diesel economy. Mostly I get bang on 40mpg again on shortish journeys which is not bad for a 3 litre.
ETA I still have the original map and can switch back and forth between maps with a 5 minute up/download so for MOT's and servicing it reverts to standard. Although in saying that I forgot to change for the last MOT and it passed without issue.
Edited by Mr-B on Wednesday 18th April 13:55
E38Ross said:
Devil2575 said:
BorkFactor said:
But would remapping it with the M50 manifold not compensate for the loss in torque?
I ask as I am thinking about getting my E46 328i mapped and I was going to put the 325i manifold on first.
Glad the remap made a difference though
The M50 manifold does not fit on the E46 328. You can fit an M54 manifold from a 330i from what I have read though.I ask as I am thinking about getting my E46 328i mapped and I was going to put the 325i manifold on first.
Glad the remap made a difference though
Edited by Devil2575 on Wednesday 18th April 08:57
Will look into the 330i manifold conversion too, cheers
300bhp/ton said:
To get the most from the engine, yes a custom map would be well worth it. Altering the intake or exhaust will affect the A/F ratio of the engine, so you need to do your mods first then get it custom mapped on a rolling road.
But maps are so much more as they can also manipulate many other factors and maximise performance, smoothness and even economy. And they can usually remove any torque limiters that might exist in low gears (don't know if BMW's use these on this model).
Price wise - well it can vary greatly. Usually I'd say starting around £200 and upwards depending on how much custom mapping is needed.
BTW - if you've ever heard of someone saying you need "back pressure" and a new free flowing exhaust made less power - then they are talking bks. This is the exact thing a remap will sort out. Adding a sports exhaust does indeed reduce back pressure, which tends to make many cars run rich (you'll often note the chav racers cars all smoke a bit and produce a lot of black carbon deposits on the exhaust tips). What needs to be done is the motor needs leaning off. This way it'll run more efficiently than before and make more power/torque.
Very interesting post, thanks! I will bear all of that in mind when the time comes But maps are so much more as they can also manipulate many other factors and maximise performance, smoothness and even economy. And they can usually remove any torque limiters that might exist in low gears (don't know if BMW's use these on this model).
Price wise - well it can vary greatly. Usually I'd say starting around £200 and upwards depending on how much custom mapping is needed.
BTW - if you've ever heard of someone saying you need "back pressure" and a new free flowing exhaust made less power - then they are talking b
ks. This is the exact thing a remap will sort out. Adding a sports exhaust does indeed reduce back pressure, which tends to make many cars run rich (you'll often note the chav racers cars all smoke a bit and produce a lot of black carbon deposits on the exhaust tips). What needs to be done is the motor needs leaning off. This way it'll run more efficiently than before and make more power/torque. 
BorkFactor said:
300bhp/ton said:
To get the most from the engine, yes a custom map would be well worth it. Altering the intake or exhaust will affect the A/F ratio of the engine, so you need to do your mods first then get it custom mapped on a rolling road.
But maps are so much more as they can also manipulate many other factors and maximise performance, smoothness and even economy. And they can usually remove any torque limiters that might exist in low gears (don't know if BMW's use these on this model).
Price wise - well it can vary greatly. Usually I'd say starting around £200 and upwards depending on how much custom mapping is needed.
BTW - if you've ever heard of someone saying you need "back pressure" and a new free flowing exhaust made less power - then they are talking bks. This is the exact thing a remap will sort out. Adding a sports exhaust does indeed reduce back pressure, which tends to make many cars run rich (you'll often note the chav racers cars all smoke a bit and produce a lot of black carbon deposits on the exhaust tips). What needs to be done is the motor needs leaning off. This way it'll run more efficiently than before and make more power/torque.
Very interesting post, thanks! I will bear all of that in mind when the time comes But maps are so much more as they can also manipulate many other factors and maximise performance, smoothness and even economy. And they can usually remove any torque limiters that might exist in low gears (don't know if BMW's use these on this model).
Price wise - well it can vary greatly. Usually I'd say starting around £200 and upwards depending on how much custom mapping is needed.
BTW - if you've ever heard of someone saying you need "back pressure" and a new free flowing exhaust made less power - then they are talking b
ks. This is the exact thing a remap will sort out. Adding a sports exhaust does indeed reduce back pressure, which tends to make many cars run rich (you'll often note the chav racers cars all smoke a bit and produce a lot of black carbon deposits on the exhaust tips). What needs to be done is the motor needs leaning off. This way it'll run more efficiently than before and make more power/torque. Bhuvsta said:
Why is Honda remapping so expensive compared to your £200 jobs?
Isnt the cost mainly for the Hondata ECU?But also they can be more time consuming to map as the newer engines like the K20 have quite a few maps for all the variable valve timing on the intake and exhaust, not to mention the vtec lift engagement, all this on top of regular fuel and ignition maps could make it very time consuming I would imagine.
I got a Bluefin for a 140 TDi A6 I used to own, the difference was unbelievable. Once I'd got it downloaded I went out and did a few different timed runs before and after installation - 0-60, 30-? etc etc and it was so much quicker and responsive. Can't remember the times but they were quite different! From standstill in drive without the Bluefin it would just move away quietly and slowly but once installed the same thing would have the fronts wanting to spin up. I still have it in the garage and am unsure if I should get it updated for the 325d, I probably will.
I presume that remapping is more beneficial for turbocharged cars?
Would be worth remapping my petrol Fiat Grande Punto 1.4 Turbo?
It has 120-130bhp at the moment and I'm pretty light-footed most of the time as I like to get decent MPG but a little extra poke for overtaking would be nice.
Would be worth remapping my petrol Fiat Grande Punto 1.4 Turbo?
It has 120-130bhp at the moment and I'm pretty light-footed most of the time as I like to get decent MPG but a little extra poke for overtaking would be nice.
Galsia said:
I presume that remapping is more beneficial for turbocharged cars?
Would be worth remapping my petrol Fiat Grande Punto 1.4 Turbo?
It has 120-130bhp at the moment and I'm pretty light-footed most of the time as I like to get decent MPG but a little extra poke for overtaking would be nice.
Yes.Would be worth remapping my petrol Fiat Grande Punto 1.4 Turbo?
It has 120-130bhp at the moment and I'm pretty light-footed most of the time as I like to get decent MPG but a little extra poke for overtaking would be nice.
Near my biggest thread ever!
Journey home reported much better MPG again on the trip.
Difference feels hugely more than the 10BHP it says.
As i said earlier it really doesn't feel any different over 4k, below is feeling totally different.
Engine feels like it wants to move, very low rpm is so different, can pull away with literally no throttle and really picks up just off tickover.
It's no sports car of course but feels like it's gone from a poor 1.6 to a reasonable 2l engine.
MPG up around 15% on previous. If it's just a rejigging of the pedal to throttle i don't care. It feels better so therefore is.
FFS £200 is a beer money these days.
Journey home reported much better MPG again on the trip.
Difference feels hugely more than the 10BHP it says.
As i said earlier it really doesn't feel any different over 4k, below is feeling totally different.
Engine feels like it wants to move, very low rpm is so different, can pull away with literally no throttle and really picks up just off tickover.
It's no sports car of course but feels like it's gone from a poor 1.6 to a reasonable 2l engine.
MPG up around 15% on previous. If it's just a rejigging of the pedal to throttle i don't care. It feels better so therefore is.
FFS £200 is a beer money these days.
Has anyone used a hip from these guys?
http://www.racechip.de/index.php?language=en
I'm thinking of getting one for my C220CDi (2009)...
http://www.racechip.de/index.php?language=en
I'm thinking of getting one for my C220CDi (2009)...
4154QLD said:
Has anyone used a hip from these guys?
http://www.racechip.de/index.php?language=en
I'm thinking of getting one for my C220CDi (2009)...
never heard of them but 129 euros to get a load more power and torque from my evoque. Sounds too good to be true!http://www.racechip.de/index.php?language=en
I'm thinking of getting one for my C220CDi (2009)...
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