chippin uk
Turbo Mini Forums

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

from what i understood thecompany when producedthe car at manufacturing gave a good all round performance like uses x amount of fuel at given revs but is just a standard map,when you remap you get it on button for that particular engine so instead of having a standardised map you have a precise map as every engine is defferent,eg more power and more economy for that engine,if you then put that ecu in another car ecomny and power might drop rather than get higher.i might be wrong but this what i have been led to believe

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

i stand corrected then.if not the case would also like to know.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

I have no idea how it works, but i have driven a car that has been done and i like it, if it gives me more mpg which means less money to the government, then i am all for it

Just read through all these posts and I have a friend who works for a diesel research company who also says you cant get something for nothing.It is a human thing in that because you have so much torque you tend to use less revs and therefore less fuel.To a degree the extra performance is subjective, as the car always feel so much more responsive and eager to go.There is no doubt that if you use all the extra power and torque you will use more fuel -simple physics.

Team Racing

Diesels do not follow conventional tuning methods - you cant run them too lean as they are always running lean.

More = fuel = more power = more emissions (smoke is only the visible part of emissions)

EGR does effect your power massivly as it recircluates exhaust gasses into your cylinders to reduce the tempreture of combustion and thus reduce NOx.

At most throttle other than WOT diesels are running a fairly high % of EGR - hence people are keen on blocking up EGR vlaves/pipes. Or alternativly you can simply map out EGR.

As for R50 shape MINIs the difference between a One and a Cooper is simple. On the One the throttle only opens 75% on the cooper its 100%

This its really really common on cars to limit engine torque - why do manufactures so this? Warranty on gearboxes and driveshafts mainly.

Removing the torque limiters in the ECU is effectivly what a remap is.

Alex

AlexF

to add to the discussion, mine was in for its MOT yesterday. Last year was a bit of hassle getting it through the emissions test but this year the tester commented on how clean it was. Only thing that has changed since the last is the tuning (other than regular services).

god knows what it means though if anything!

alex, how do you modify the map, do you manualy go through the map changing what you think shouldn't be there, or do you drive it and 'feel' the difference of each change?

Team Racing

Speaking specifically for diesels for a mo...

These are the guys I am a dealer for...

http://www.evolutionchips.com/turbodiesels.html

The map is modified to suit the vehicle by evochips - I can ask for specific changes to be made.

Once the new map is uploaded the vehicle is driven and checked for smoke output.

Alex

AlexF

better pm me with a quote!

Team Racing

I had the 530 bmw remapped a while ago.

I have both gained MPG and driveability. I dont really get why we get the MPG gain either, but one thing I have found is that the live computer giving you the average consumption and the live consumtion meter doesnt really catch up with the remap, they still think that the engine is getting the same amount of fuel it did at a given throttle/rpm before remapping.

This made my average consumption meter in the car read about 10% out. I still use less diesel than I did before though, calculated by the trip meter and how much I put in the tank. It is about 1 litre pr 100km difference from before.

I can easily tow the mini on the back ofthe 530 touring and get about 8.3 liters pr 100 km which I find quite good for a 3 litre with 230hp/450 Nm on twisty/hilly norwegian roads.

Edited by miniminor63 on 11th Sep, 2008.

I have had mine done today, noticed the extra power and torque in 2nd gear upwards