[jjbirch]

hi i have been look and the new bmw car magazine and i have seen a write up on this new remapping, and bmw cant tell they have played with it, it even gets better fuel, i have had a good chat to this man whos does it and he sounds like he knows what he is doing so i am going to get my one done in the next 2 weeks i will tell you how it goes, and does anyone else in the uk want this done, as we could get money knocked off

[Redguy]

I would like to get my 318i remapped, as with the same engine as the 320 I'm sure that they could easily release that extra BHP. However, I would be a little worried about invalidating my warranty. I am not too sure how it would go!

[jjbirch]

Originally Posted by Redguy

I would like to get my 318i remapped, as with the same engine as the 320 I'm sure that they could easily release that extra BHP. However, I would be a little worried about invalidating my warranty. I am not too sure how it would go!

its nothing to worry about its happening all the time, bmw cant tell a thing

[London320d]

Don't you think that they might sus something when you take it in for a service and they road test it?

[Paul330d]

I had my e39 530d remapped by an independent specialist recommended to me by my BMW dealership, so I wouldn't be too worried! Unfortunately, the guy in question has gone to live in Spain, so I have booked my 330d in for a remap when I am next over in the UK in August. I am going with www.e-maps.co.uk as they get very good reviews on UK BMW forums and they only charge £295 for a full custom remap, as opposed to £500 or more for the generally less effective generic plug-in adapters like tuning box. Power & torque are basically as much as you dare type in, but as I want to retain maximum reliability, I am sticking to the company's recommended 261hp & 416lb-ft

Here's their info sheet for the e90 330d:

[jjbirch]

well the new bmw car mag that has just come out and they choose DMS http://www.dmsautomotive.com/ and gave them get remarks on this, i have wrote a few emails and they do sound good, and they do house remapping so thats great too, all done at home, i have been booked in next week so i cant week, is 209 bhp to much, they say it does 50mpg he has promised that bmw cant tell

[Paul330d]

DMS have a good reputation, too, although personally I wouldn't risk a 25% increase over stock.

[jjbirch]

Originally Posted by Paul330d

DMS have a good reputation, too, although personally I wouldn't risk a 35% increase over stock.

it seems like you know what your talking about what would you take it too 200 bhp or less

[Paul330d]

I think 15-20% is a good compromise: enough extra power, but avoids any undue stress to the engine, drivetrain, clutch, brakes, etc. With the 163hp 320d, this would equate to about 190hp. You should also bear in mind that, if you have a manual gearbox, the more torque you have, the harder it is to shift seamlessly. This is the main reason I opted for the steptronic.

[Barrie]

I wonder what can be done to my 318d? I also wonder if it is safe to do this to a company car?

[Paul330d]

The 318d is an electronically detuned version of the 320d, so you can push power up to similar levels as the 320. However, I personally would never attempt a modification like that on a car that didn't belong to me.

[Barrie]

Thanks for the info Paul300d...I wouldnt want to mess with my company car, but was just curious, so thanks for the response.

[thebigman]

Originally Posted by Paul330d

The 318d is an electronically detuned version of the 320d, so you can push power up to similar levels as the 320. However, I personally would never attempt a modification like that on a car that didn't belong to me.

I would say that is even more of a reason to chip the engine! You gotta' love company cars!

[jjbirch]

i would as its 100% invisable to bmw so give it a try on the 318d i think i would bring it to 160ish not all the way up, but thats what i think

[climkt]

hi jjbirch. interesting topic- chipping to get more horses. can it be done with a 320i too- say chip it to 320SI? i have an uncle with a 523i (177hp) . know any chips to chip engine to 525i (218hp)

[jjbirch]

Originally Posted by climkt

hi jjbirch. interesting topic- chipping to get more horses. can it be done with a 320i too- say chip it to 320SI? i have an uncle with a 523i (177hp) . know any chips to chip engine to 525i (218hp)

hi climkt
i would say so they do porsche's so there are petrol, the good thing about what i am doing is called remapping not chipping a chip is put in to boost power ie bhp, but remapping they just reprogram the ECU so bmw cant tell it has been played with, i was chatting on the phone to this company most of the day, about my worrys, but as he said its safe as houses, and if any thing did go wrong they would get it fixed, the man i talked to is mike cooper, hes in the bmw car mag this months one, saying the same sort of things, they have booked me in for the 2nd of may and they come out to do it so thats good

[climkt]

hi jjbirch, sounds safe if it is remapping. do let us know if you have more horses in your right foot after your mod. i am certain you will be able to take on a 325i after your mod. guess u will have a more thirsty car with 'extra horses to feed! '

[E90Fleet]

2 Things

1) BMW can tell if they wanted to ( not talking dealer but BMW itself). First thing they do if you blow a turbo is download the ECU programming and logs, and check them for why the turbo went. They will find it immediately.

2) People for get that on the E90 the ECU can be reprogrammed by Progman ( CIP ) updates without the operaor having to do anything ( older cars they had to specifically go into the ECU to reprogramme it )

So you could have a modified ECU, take the car in for service, your dealer sees you have a software update due for something, and unknown to any of you the latest software has a ECU update. It will then whipe whatever you have had done to the ECU and revert the car back to standard

[Paul330d]

1. Agreed - if there's a computer involved, there'll be a trace somewhere, however difficult to find.

2. Hmm, I hadn't thought of that! Conversely, is it then also the case that the dealer could dial in some more power when he does the software update?

[E90Fleet]

Originally Posted by Paul330d

2. Hmm, I hadn't thought of that! Conversely, is it then also the case that the dealer could dial in some more power when he does the software update?

No

Dealer cannot choose or modify the software. Its a totally automatic process. They dont even know which modules are updated.

BMW could change the software given to the dealer if they really wanted to

[climkt]

hi e90fleet , is it possible to tune back a e60 523i or e90323i back to a e60 525i and a e90 325i? should be possible since it is the same engine for all 4 cars.

[Paul330d]

Originally Posted by E90Fleet

No

Dealer cannot choose or modify the software. Its a totally automatic process. They dont even know which modules are updated.

BMW could change the software given to the dealer if they really wanted to

This is valuable input. Thanks, Fleet Do you think, then, that a better solution would be to go with one of the generic add-ons, such as those supplied by www.tuningbox.com, or www.superchips.co.uk? I always believed that a custom remap (i.e. one where a computer read your particular car's software and rewrote the necessary routines accordingly) offered greater reliability than a generic box and at half the cost, but it's obviously no good if all the hard work is undone at the first service...