Has anyone used...

[frikkieh]

I won't give that unit a chance near my car.
Cars are tuned, engineered and designed in a way for a specific reason, such as economy, performance and reliability.

 

[netercol]

prolly stepping on a few toes here, but.. the thing with tuning boxes (spesific for diesels, dont want to get into the whole unichip debate again)
is that they modify the output of sensors, thus "lying" to the ecu about parameters used to run the engine. the most common diesel one being modifying the rail pressure sensor output. so the ecu tries to keep the rail pressure at say 1000 bar for a certain load/rpm/torque but because its being lied to by the tuning box, the actual pressure is say 1200bar.. more diesel, more power, voila..

the downside being the fuel system is working harder than intended. max rail pressure is now 1800 instead of the 1600bar it was designed for.

whereas with a remap the actual lookup tables inside the ecu memory gets modified, so that the ecu will add more diesel at a given load/rpm/torque by simply keeping the injector open for longer, adding more diesel.. same effect, but a engineers solution..

 

[Rooi_Willie]

prolly stepping on a few toes here, but.. the thing with tuning boxes (spesific for diesels, dont want to get into the whole unichip debate again)
is that they modify the output of sensors, thus "lying" to the ecu about parameters used to run the engine. the most common diesel one being modifying the rail pressure sensor output. so the ecu tries to keep the rail pressure at say 1000 bar for a certain load/rpm/torque but because its being lied to by the tuning box, the actual pressure is say 1200bar.. more diesel, more power, voila..

the downside being the fuel system is working harder than intended. max rail pressure is now 1800 instead of the 1600bar it was designed for.

whereas with a remap the actual lookup tables inside the ecu memory gets modified, so that the ecu will add more diesel at a given load/rpm/torque by simply keeping the injector open for longer, adding more diesel.. same effect, but a engineers solution..

Maybe a dumb question... But how can the car be lighter on fuel when it burns more diesel? i understand that in diesels More Diesel = More Power , and tha's what these units do, so how do they achieve the better consumption then?

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Guys I have user a flash tune on all my cars except the 320d
I now have a tuning box fitted and it works very well .
Increased wheel power from 140 to 186.
Fuel consumption is great and no problems in Over a year .
Takes 20 seconds to install and remove .
Cost me 1 fifth of a flash tune and I can adjust it myself .
On a diesel vehicle the tune wether flash or piggy back increases the amount of fuel being Burnt it's not as involved as petrol tuning
Twins has a similar unit on his 120d , let him post some thoughts

Which unit do you use?

 

[anile8-zn]

italian tuning box

 

[sidewayz]

Hey, I'm still learning :=):

Will hopefully get my 1st BMW this week, so I'm just exploring options out there.

Who would be the "go-to" people for BMW diesel tuning?

Where in SA are u?

 

[Rooi_Willie]

Hey, I'm still learning :=):

Will hopefully get my 1st BMW this week, so I'm just exploring options out there.

Who would be the "go-to" people for BMW diesel tuning?

Where in SA are u?

I'm in Klerksdorp, North West Province

 

[moranor@axis]

Hey, I'm still learning :=):

Will hopefully get my 1st BMW this week, so I'm just exploring options out there.

Who would be the "go-to" people for BMW diesel tuning?

Where in SA are u?

I'm in Klerksdorp, North West Province

eish you might have to go far to get a decent tune...

 

[Rooi_Willie]

Ja, PE is quite the trip for me, even JHB is 200km :nonono:

 

[moranor@axis]

im sure PE has good tuners...