Impressive results with the Viper 2 fast road chip in my E34 525 Sport M50 24v single Vanos (ECU No 0 261 200 413).  All round improvements: Much easier to drive round town (London rush hour etc), better top end, raised rev limit and with no apparant loss in fuel consumption (I'm still on my first tank so it's to early to say). Also if you have a later E34 with security coding they'll need your old chip or ECU to replicate the code on the new one because it wont start without it, so be prepared to be without your car for a while and send it via special delivery with insurance for a grand cos if it gets lost in the post your in difficulty and will need an expensive trip to BMW.

Warren.

Warren !

Had a run up to Yorkshire this weekend and had my best MPG figures on the way back at just under 29 to the gallon! This was at three figure speeds with one traffic jam on the M1 and heavy traffic on the M42, on the other hand my normal journeys have returned a slightly heavier consumption figure than before but this is probably because I've been taking advantage of whats available with the Viper 2 fitted!

Warren

Hi Warren I have a 1995 525 Touring with the same ECU number & am considering this mod.

Is the midrange torque noticably better as I use mine for trailering ?

Do you now have to use Super Unleaded all the time ? 

Will it pass MOT emissions with this chip or do you have to change back to standard ?

Is the tickover still the same ?

Thanks for any info......Simon

The chip will not work on the 1995, you need the ews enabled version and i do have these in stock also.

It will pass all emmisions and run on standard unleaded 95 ron fuel.

Tickover is 775rpm but i can alter this to suit yourself at no extra cost.

yes.

i would need the ecu number though as there are 3 types and each gives different power increases.

Probably the wrong forum, but following the thread, has anyone experience of chipping an E39/S62 M5?  And why are the chips twice as much as for other cars!!??

Regards

STEPHEN B

March 2001

STEPHEN B

because your car is map only and this costs more.

i charge 75 for chipping and 125 for mapping

Hi Jayson 

As mine has the EWS what does it involve, do you need the whole ECU ? or can it be done while I wait if I bring car to you ?

When the code is copied to the new chip is the original rendered useless ?

How much ?

Thanks Simon

hi there,

with the later ews cars like yours you need a new chip with the ews code taken off your original chip and written to the new chip with the performance chip software.

this can be done in 1 hour and will give excelent results (seen 17hp+ many many times) and costs £125 as this is a personal map for each car alone and not off the shelf.

chippeduk wrote: because your car is map only and this costs more. i charge 75 for chipping and 125 for mapping

Sorry to be really thick- I don't know the difference between chipping and mapping!

Non-techie STEPHEN B!

chip is when you replace the chip in the ecu.

mapping is when you connect the laptop to the car and flash or programme via a port in the loom.

chippeduk wrote: yes. i would need the ecu number though as there are 3 types and each gives different power increases.

Can't I just have the one that gives me most power

I'll have a look this weekend!

yes, i have a few levels of power for each ecu.

economy

fast road

track

chippeduk wrote: chip is when you replace the chip in the ecu. mapping is when you connect the laptop to the car and flash or programme via a port in the loom.

Right - so rather than send me a chip in the post, you have to have the car for a day?

What levels of power/torque increase then are available for my 2001 E39 M5?

Regards

STEPHEN B

Yo Chipped UK!!

I am looking provisionally to come up on 11th Dec for chip & mapping on my E28 528i. Is that OK and how much will it set me back.

Paul Sharp E28 528i (86)

http://sharpy.smugmug.com/gallery/278675/1/11051228"> http://sharpy.smugmug.com/gallery/278675/1/11051230">

I did send you my ECU number a couple of weeks ago

Paul E28 528i (86)

http://sharpy.smugmug.com/gallery/278675/1/11051228"> http://sharpy.smugmug.com/gallery/278675/1/11051230">

Ok, will let you know if change of plan

Paul E28 528i (86)

http://sharpy.smugmug.com/gallery/278675/1/11051228"> http://sharpy.smugmug.com/gallery/278675/1/11051230">

Fitted by Viper2 chip this evening, and I have to say it's made a huge difference. The pull a lot more strongly through the midrange (1700 - 4000, and is also more responsive. I haven't had chance to put it through it's paces properly yet (traffic was pretty crappy tonight) but will try tomorrow  

you will also get better fuel economy too.

of course you wont to start with as you hit the gas harder :)

Hi, I have just purchased the Viper 2 chip seems a bit of a bargain.  Can't wait to get it, also my new Bilstein Kit came today, It's getting fitted next Wed.  Happy days!

Andrew

Same place as you!  Thanks for the advice, Motorsportworld £424.  It all came in a lovely big box and saved me £70 quid or so off the price of Euro Car Parts including delivery to N.I.  I'm getting a few bushes, spring pads and the droplinks replaced at the same time.  Can't wait. 

Andrew

Hello ChippedUk. I'm potentially interested in one of your fine-sounding chips.

I have a small query though. What kind of warranty do you offer on your work?

By that I mean if you fit a chip to my car and the engine later fails due to a problem with running too lean and burning holes in pistons, or running too rich and causing bore wash and piston ring failure do you guarantee to replace my engine?

I understand all of your chips must be mapped on the relevant vehicles on a rolling road under numerous conditions, temperatures, loads etc and have undergone countless R&D tests and revisions but I just want to cover my back. After all I'd want to make sure you were completely covered for such an eventuality. As I'm sure you're aware of the cost from the BMW dealer of replacement M-Power engines.

After all, there are some unscrupulous people out there who are earning money out of unsuspecting people with little more than a laptop, a rough understanding of Eprom programming and a chip burner.

Kind regards.

I like the post ste.

I guarantee my chips are perfect but as your well aware, people can have there cars running rich or lean due to other factors.

The proof on the rolling road events show the chips work perfectly but yes, i do guarantee my goods.

If you find ANY company on the planet who offer such a warrenty i will match it.

By this i mean, they have to have been offering such a warrenty for the past 6 months and not an offer starting today or tommorow.

I have been in the motorsport trade for years and never come accross this or anything like it.

Too many factors come into play.

What i will do though is offer you a guarantee that you buy a chip or have a car mapped and then if in the next 4 weeks you go to a rolling road centre or tuning centre and they can say the chip or map i supplied is making the car overfuel or underfuel directly then i will give a full refund and also refund the cost of the rolling road session and all expenses associated with it.

Now thats an offer no one will give you.

Many thanks - that's the kind of endorsement I'm sure will put many people's minds at rest.

Presumably the remapped ecu's rather than the replaced chips are more obvious to a dealer?

STEPHEN B

You wont see a chipped ecu at service or a mapped one as the vin number/ews number and key number are not altered or removed or redirected.

Only a section of the code is changed which is not looked for at service.

Ok this is all starting to sound pretty interesting to me too ...wouldn't mind getting some better fuel economy out of my 525 sport as well as a bit more punch ...

I have read the above posts and im pretty sure i understand it all but can someone just clarify what risks im running if i decide to get a chip installed ??

Also chippeduk i know you would need my ECU number but can you give me an approximate figure of how much a chip would be for my 1991 525i sport ?? and what exact benefits I would get .

Its xmas bonus time soon so i might be time to spend some money on my baby

Your looking at around 14hp real term gains.

If you call me on 07815-501867 i can discuss options.

cheers

Jay,

Same question from me - E39 M5 2001.  What power and (as importantly) torque improvements should I expect.

Is the torque curve extended/flattened?

Also what would be the cost - I would presumably have to come to Essex for the remap - I live in Salisbury.  Please pm me if you prefer.

I had a superchip fitted to my Z1 - did I waste my money???

Regards

STEPHEN B

Its hard for me to knock another companies goods as it could be a case of mine is better than theres to gain sales in some peoples eyes but if you look at ANY of the rolling road days held by the e36coupe you will see who always comes top out of viper2 and superchips.

As for your car, your looking at 13hp and 14lbft.

This is not going to be mega noticable in an already awesome car but it will be noticable.

You will get 2mpg better fuel consumption.

I am in birmingham and will need the car for an hour to do the work and the cost would be £125.

Rhys, i am working at home this weekend so yes, i can map/chip a car during this time.

To give a 100% correct answer i need your ecu numbers but what year is the 750i ?

Hiya Jay,

I'm new on this site and am interested in possibly chipping my '99 E39 523 Touring.As i've already discovered elsewhere this engine is de-tuned. Can i get an increase in MPG, power and or Torque, if so what kind of figures and how much? Sorry if i'm going over old news but i really would love to pep the old girl up a bit.

All the best mate.   Mickeyboy 

You need to map that car, i can do it for £125 fitted and am in birmingham.

where are you located ?

Near Portsmouth,  

Have you any idea what gains there would be, and if i had better economy would i lose power over the standard output?

Cheers Mickeyboy

around 11hp and 14lbft of torque.

you would get around 3mpg better fuel consumption.

Chip came today!  Thinking about installing it tomorrow, I'm a bit worried about breaking something in the process though.  Also,  got my Bilstein kit fitted today,  MEGA!!!!!!!!!!!!!  Cost another £250 to get it put in including bushes etc.  I can't wait to go to work in the morning just so I get another drive, the difference is brilliant

I have read some info from e34.net.  Are these the instructions you are talking about??

Andrew

P.S The car sits lower now as I had hoped, I think it looks much better, even a little smaller than it did.  It corners great.

Chipped UK,

Big expense on car - 2 tyres and sort out exhaust dut to rubber breaking during caning phase and dragging on the ground  The only good bit is that exhaust still whole but some repairs are needed! I am looking to come up to have it chipped beginning of January!

Paul - E28 528i (86)

I have a '94 540 auto can it be re mapped to improve consumption. Goes like stink so not to bothered about performance but latest contract means many miles and ££££££'s on fuel. I really dont want to have to sell.

Also have '96 320 manual what improvements overall can be achieved.

Cheers

Good news on the 540, at 5-600 miles per week thats many 

what info do you need, coming to you would be no probs, when would be convenient. Oh yeh, how much.

T

It depends on the ecu you have,

Chip on it would be £75 fitted.

Mapping would be £125 fitted.