an03dr0

i have heard good with both abit more about ecutek but the ecutek is so expensive plus some say not to have a fuel pump upgrade and some say yes

EngineMapper @ Group B Motorsport

I am biased, but I'd say opensource remap, same results, much less cost. I do them at £225 if you come to me with before and after performance results.

Thanks,

Graham

phil739

iTrader: (30)

like to see what answers come up here

dynamix

iTrader: (3)

I have to be honest and say I'd love to answer but cant figure out what the question is yet

EngineMapper @ Group B Motorsport

I'll be honest I read the question/statement and assumed the OP was asking about mapping for his 07 Impreza. However now i've read it again I'm not entirely convinced.
an03dr0 - Do you mean EcuTek vs Opensource, because that's been covered in great depth! lol

Fleetwood

Is the OP talking about the 'standard map' resellers like:
http://www.flashremapping.co.uk
That buy in remaps from third parties like Viezu?

These are really popular for diesel turbo family car types. My dad had his old Passat remapped and one colleague got a Range Rover done and was very happy (none of them by the guys above in the link but you get the general idea).

However.... almost unheard of in Subaru circles. Some of the reasons I imagine are:
1. These standard maps won't work so well on none standard cars i.e. modified. That removes a whole heap of people right there.
2. A cast iron diesel block is immensely strong. An alloy subaru block...
3. Subaru's are in a relatively high state of tune to start with so there is a lower margin for error.
4. Older cars with different histories vary in condition (top gears bmw test the other week for instance), this is obviously going to affect how the car reacts to a remap.

Al

dynamix

iTrader: (3)

I think one company (if you call them that) did try doing this last year in the subaru scene offering quick reflashes for discount money. They did really well for the engine builders on here Not so great for the owners.

Subarus are all individual and unique and need proper mapping to bring them to life and to keep them alive.

jura11

iTrader: (7)

If its for you EcuTek expensive,one way is out and this is Open Source remap,here is few mappers which will help you sort out...
About fuel pump,fuel pump is recommended on "older" bugeye's/blobs(10 year old cars,fuel pump is not expensive just £69)and on WRX also is recommended if you are want go little bit higher.
I will recommend contact here mappers....



Jura

EngineMapper @ Group B Motorsport

I think if all the cars were identical or incredibly similar in mod type and maps were well developed for those types of mods with a reasonable factor of safety then they would work just fine.

WRC specifically run their maps much leaner than the road car tuning fraternaty to extract power from the fuel. They also run very agressively into det in some areas, so much so that they will only ever last a certain amount of time. You would also assume each engine is individually mapped, but even at this level the maps are duplicated across the customer cars and only tweaked if problematic. However each engine is built to a much tighter set of specifications, essentially as a low volume prototype/production run.

Graham

Fleetwood

I hear this alot.
Logically you would think that a japanese manufacturer builds engines to very high tolerances, especially one that had a reputation for quality and engineering like Subaru.

Which means that the engines coming out of the factory will be consistent.

So... is this a function of the different histories that the cars experience and the different wear and tear or the fact that we are now pushing the engine to such high levels of performance that hitherto unnoticed inconsistencies in the manufacturing process lead to markedly different performance?

For instance if you map a brand new unmodified car presumably they are pretty consistent?

dynamix

iTrader: (3)

Logic doesnt always get echoed in reality and add to that the useage, wear, partial failure and modifications and you get wide variances in what a car needs/wants.

Sure you can get one size (sort of) fits all and that is what Prodrive do. But a custom fit map will always work/fit better.

jameswrx

iTrader: (4)

Graham, am I reading this correct that you can remap the my99/00 imprezas but there's a 5% risk of killing ecu?

It'd be a risk I'd be willing to take (obviously armed with a spare)

vulnax999

iTrader: (7)

A properly mapped to the car / engine ECU map will NOT kill the ecu ( AFAIK ) nor blow up the engine, unless the driver does something really silly! Unless this is some electronic bug type thing that crashes the ECU like a windoze pc ...

The mappers really don't want a string of people chasing them following blow ups so they map to a good, performance enhancing level with still a bit of safety margin.

For example, my mapper - one of the most respected mappers in the UK, mapped my STi 09 hatch conservatively - a bit rich, not too aggressive ignition advance, limit boost etc. as the hatches have a "known" problem with pistons over about 380 bhp orif hammered.

On my classic, built 2 litre, mapper went much closer to det with timing, and leaner with fueling as the engine could cope, and power, torque, drivability would be better.


One size fits all maps are OK if the car is std, a la PPP from Prodrive, ( so modders won't suit ) or a set list of mods ( as Perrin do for the COBB access port tuning gadget - buy a map for this level of tune with our bits ) but as soon as hardware is changed, it changes map needs.

Dunno if that helps, just my 2pth worth having had remaps from several mappers in the last 9 years on scoobies in various levels of tune.

JAutos

iTrader: (5)

Duncan you'll always have people wanting to find a cheaper way to map their Subaru. And again this is my opinion but is it really worth saving a few quid and risking a potential rebuild. These people will learn the hard way. And unfortunately will cost them way more than a proper job in the first place

EngineMapper @ Group B Motorsport

Unfortunately as it says on my website I cannot do 99-00 original reflash. Only the guys who use EcuTek can and with that comes a potential reflash failure of 5%.

Incidentally on the main topic, mappers can only map what they are given. Unfortunately I've already seen my share of boost leaks, malfunctioning engines and weak or fatigued components fail when being mapped. So as a result every map will only ever be specific to the car due to so many factors, unless factory built.

Graham

Tidgy

yeah was several midland scooby owners who got stung as well as some out sheffield way. to my knowledge it was 7 dead engines before they shut up shop. these were just flash maps taken form the internet, applied to the car then tested, some went during the first test.



ecutek vs opensource is still an on going argument, ecutek has a much better developer support system than opensource. But it's more down to the mapper than the software, a decent mapper is unlikley you use unsuitable software. a decent mapper can map a car safley and to get the best from it with what ever software (assuming it has the required functions) where as you can have the best software out there but a monkey for a mapper and you'll always end up with banana's.

from the experiance of the dead engines (not mine i might add) i'd just make sure who ever you use has the correct insurance to cover you, public liability is a must.

JAutos

iTrader: (5)

Good point

The Stitcher

iTrader: (12)

why is this thread posted in the members gallery ??????? are we going to see pics of ecu's lol

phil739

iTrader: (30)

wasnt aware that mappers had this

am taking from the replies that there is not alot of difference between open source or ecutek remapping as long as you choice your mapper wisely