M4.4 Remapping.......

[kmb]

I can confirm that oblark has perfected his mapping, he provided me with one of his mapped ECU's I requested a conservative and safe map, my 96 850 T5 has 136k miles just been fully serviced and ITG panel filter and Powerflow Stainless cat back exhaust, here are my findings after 200 miles with it fitted:

Oblark put together a map which increases boost to 15 psi (from standard 9.6psi), the speed limiter stays at 160mph and boost limiter is 15psi... the car is considerably faster, and possibly smoother, which is a surprise. It is still very progressive with not too many traction control problems. It really flies on boost!

The boost guage now goes to 90% max where as it was about 65%, engine was a little lumpy until it learnt, the lamba light also flashed on a few times in the first 20 odd miles but haven't seen it since.

Nice to hear a bit more turbo whistle and it's certainly come alive.

[M-R-P]

He's a good lad is our Rob (if a little grumpy )

[kmb]

His communications were top notch and he seems a good egg.

I've driven to work today in it instead of my boring 2014 A4 TDi, people think I'm crazy... the stainless exhaust burble is addictive so I'll use it tomorrow too!

[M-R-P]

Take the soundproofing off the bonnet

[kmb]

Tempted but noooooo.

[M-R-P]

Tempted but noooooo.

Booo...

Drill the bottom of the air box too

[kmb]

I was going for the mint and completely standard look, but with some under the bonnet hidden goodies, not Heath Robinson ghetto mods

[stribo]

I was going for the mint and completely standard look, but with some under the bonnet hidden goodies, not Heath Robinson ghetto mods

You'll have to excuse MRP, he's a chav.

[M-R-P]

[Jamest5r]

You'll have to excuse MRP, he's a chav.

And he makes a dam good job of it

[Dan H]

I've also had my ecu mapped from a 2.5T LPT software and Rob whiped it and put t5 software and a map on it to go with my new t5 engine, I've not driven a standard t5, but the map on mine is really good! boost comes in smooth and keeps on climbing to around 16psi, and has out ran a few 'fast' things close to me, Need to get it on the rolling road after Christmas to what power it is pushing out!

Would recommend Rob's services to anyone! Great Service

[oblark]

Not done anything to this just a few fine tweaks to the map to get MPG better.

I`ll be loading a bin file on the ecu at the weekend that takes the control of the fuel trim from the narrowband (lambda sensor) to the wideband. This means the AFR`s are more controllable.

[MoleT-5R]

Not done anything to this just a few fine tweaks to the map to get MPG better.

I`ll be loading a bin file on the ecu at the weekend that takes the control of the fuel trim from the narrowband (lambda sensor) to the wideband. This means the AFR`s are more controllable.

I'm looking forward to the next update, as I'm just in the process of going back though these 4.4 mapping and logging threads as I'm now in the position that I really need to start down this road with the next stages of olives development, just hope I understand it fully so I feel able to proceed.

[Avinitlarge]

Not done anything to this just a few fine tweaks to the map to get MPG better.

I`ll be loading a bin file on the ecu at the weekend that takes the control of the fuel trim from the narrowband (lambda sensor) to the wideband. This means the AFR`s are more controllable.

It makes a hell of a difference, a lot smoother. Ive gone back to narrowband control from WB control just to set up my 750cc injectors and its awful.

[kmb]

I chanced upon a thread somewhere where someone was saying Air Con doesn't work if you stick a M4.4 in an 850, any truth in that Rob, didn't see the logic in it? I'm sure my air con still works fine even though my 850 is on your M4.4 ECU and map...

[Avinitlarge]

If you fit the ECU without changing 2 values in the bin, the AC won't work. At one time you had to do a hardware mod but recently, A very nice clever bloke called Piet from the Netherlands found a way to do it with no hardware mods

[kmb]

Interesting, wonder if Rob has managed to do the same?

I must admit I only used my A/C to clear windows on a wet day so am not yet 100% certain it works (also away for the next 3 weeks in France so cannot check yet)

[Avinitlarge]

Im not sure, I thought he had binned the A/C anyway?

[kmb]

This was in reference to the ECU he mapped for me...

[Avinitlarge]

The soft mod only came to light 5th March, Not sure about the hardware mod. Either way, You have to do one or the other to get the AC working correctly of you convert from 4.3 to 4.4