3.0si remap - The Results (page 4) - Update

Smartbear said:
glad to hear that you can feel an improvement Marlon, ive had a couple of turbo charged cars (smart cars!) remapped in the past with large gains but ive always been a little sceptical when it comes to the same thing with a n/a engine?
Plus i must admit that ive hardly ever taken the car to full revs/full throttle for more than a few seconds :(
Maybe im just a scaredy cat bear :lol:
regards

I remember remapping my Mondeo ST TDCi many years ago. As you say turbo diesels are where the biggest gains can be found, and after the remap it felt like a different car. The claimed 35bhp increase from 150 to 185 was believable – it certainly felt like a 20% increase. The power was spread out across the whole rev range, rather than that narrow band where the turbo had previously kicked in.
I wouldn’t hesitate to remap any turbo-diesel. NA engines are a different matter, but if you do drive at the high rev limits of the car then there are gains to be made. Don’t get me wrong - I don’t thrash the car, but I do like giving it the beans from time to time – it’s a sports car after all :wink:
 
Hi Colin
You say it came cheaper through a friend what is the actual cost, and whereabouts did you have it done. A few more horses might be just what i need. If you do not want to publish the cost on the open forum, perhaps you could PM me

Paul
 
Hilly30si said:
Hi Colin
You say it came cheaper through a friend what is the actual cost, and whereabouts did you have it done. A few more horses might be just what i need. If you do not want to publish the cost on the open forum, perhaps you could PM me

Paul

I will check with the garage regarding giving his details here, or via a PM
 
Hilly30si said:
Hi Colin
You say it came cheaper through a friend what is the actual cost, and whereabouts did you have it done. A few more horses might be just what i need. If you do not want to publish the cost on the open forum, perhaps you could PM me

Paul
Paul,

It was my mate that did the work http://huddersfield.quantumtuning.co.uk/ just ring the number and ask for Rob and tell him you heard about him through James on the Z4 forum and he'll look after you
 
Marlon said:
Smartbear said:
glad to hear that you can feel an improvement Marlon, ive had a couple of turbo charged cars (smart cars!) remapped in the past with large gains but ive always been a little sceptical when it comes to the same thing with a n/a engine?
Plus i must admit that ive hardly ever taken the car to full revs/full throttle for more than a few seconds :(
Maybe im just a scaredy cat bear :lol:
regards

I remember remapping my Mondeo ST TDCi many years ago. As you say turbo diesels are where the biggest gains can be found, and after the remap it felt like a different car. The claimed 35bhp increase from 150 to 185 was believable – it certainly felt like a 20% increase. The power was spread out across the whole rev range, rather than that narrow band where the turbo had previously kicked in.
I wouldn’t hesitate to remap any turbo-diesel. NA engines are a different matter, but if you do drive at the high rev limits of the car then there are gains to be made. Don’t get me wrong - I don’t thrash the car, but I do like giving it the beans from time to time – it’s a sports car after all :wink:

My smart cars were petrol, not diesel.
All 699cc of them :D
Regards
 
Smartbear said:
Marlon said:
Smartbear said:
glad to hear that you can feel an improvement Marlon, ive had a couple of turbo charged cars (smart cars!) remapped in the past with large gains but ive always been a little sceptical when it comes to the same thing with a n/a engine?
Plus i must admit that ive hardly ever taken the car to full revs/full throttle for more than a few seconds :(
Maybe im just a scaredy cat bear :lol:
regards

I remember remapping my Mondeo ST TDCi many years ago. As you say turbo diesels are where the biggest gains can be found, and after the remap it felt like a different car. The claimed 35bhp increase from 150 to 185 was believable – it certainly felt like a 20% increase. The power was spread out across the whole rev range, rather than that narrow band where the turbo had previously kicked in.
I wouldn’t hesitate to remap any turbo-diesel. NA engines are a different matter, but if you do drive at the high rev limits of the car then there are gains to be made. Don’t get me wrong - I don’t thrash the car, but I do like giving it the beans from time to time – it’s a sports car after all :wink:

My smart cars were petrol, not diesel.
All 699cc of them :D
Regards

The way I understand it, remap power gains are greatest for Turbo Diesels, next Turbo Petrols, then NA engines.
Interesting to hear you remapped a 699cc engine and got large gains :thumbsup: - I've only ever investigated 2 ltr plus engines
 
Marlon said:
Smartbear said:
Marlon said:
I remember remapping my Mondeo ST TDCi many years ago. As you say turbo diesels are where the biggest gains can be found, and after the remap it felt like a different car. The claimed 35bhp increase from 150 to 185 was believable – it certainly felt like a 20% increase. The power was spread out across the whole rev range, rather than that narrow band where the turbo had previously kicked in.
I wouldn’t hesitate to remap any turbo-diesel. NA engines are a different matter, but if you do drive at the high rev limits of the car then there are gains to be made. Don’t get me wrong - I don’t thrash the car, but I do like giving it the beans from time to time – it’s a sports car after all :wink:

My smart cars were petrol, not diesel.
All 699cc of them :D
Regards

The way I understand it, remap power gains are greatest for Turbo Diesels, next Turbo Petrols, then NA engines.
Interesting to hear you remapped a 699cc engine and got large gains :thumbsup: - I've only ever investigated 2 ltr plus engines

My smart fortwo went from a new top speed of 84mph to a gps verified 108mph (slight downhill stretch of my driveway)
The smart roadster wound off the end of its 120mph speedo :D
Both maps were advertised as bringing 30% gains :driving:
Regards
 
Yep, I don't really like to talk about it :rofl:
I had a new Mazda rx8 before I caught the smart bug, I just fancied a change....
Rob
 
Ed Doe said:
Mike6 said:
In reply to Ed, its all a matter of taste. If the re map does all the things you mention for a discerning drive why wouldn't a manufacturer do this in the first place or offer it as an extra. Back street tuning firms are all very well but I would prefer to keep a car as standard

Completely agree - it is all a matter of taste, and fair play if you aren't interested in remapping. However, whilst I agree there are many different people of wildly varying experience and professionalism who will offer you a remap, the reason for BMW or any manufacturer not offering this is manifold;

1. BMW will design the car with certain tolerances, to allow for all sorts of drivers. There are those who will buy the car and have no mechanical sympathy at all, will redline the car everywhere from cold, ignore service indications etc. In order to mitigate against mechanical failure caused by misuse or 'harsher than intended' use, BMW or any manufacturer will seek to build in some tolerance on the level of tune of the engine, to account for all types of driver. This inevitably means it will be dialled-back deliberately from the factory.
2. As the 3.0si in this instance is not the top-model in the range, it will fit within BMWs market model. It was originally clearly aimed at someone who isn't looking for the full-on M car, so wants something softer. It was therefore designed to be easier to drive and to extract performance from - hence the torquey nature, and 'soft-limiter' - it's designed for people who tend to drive at 7-10ths, and don't regularly rev it out. Which can make it a little disappointing at times when as an enthusiastic driver you do want to rev it out.
3. Much in continuation of point 2, BMW have marketed the car at a certain type of person. The type of person who would have purchased this car brand new would more likely want a relatively comfortable daily and something with more accessible daily performance. Conversely as they have aged the prospect of an exciting rwd 2-seater sports car appeals to a demographic more keen on the driving dynamic. The original intentions of BMW no longer apply to a significant proportion of owners now. An enthusiastic driver will be far more fastidious in maintenance, warming and cooling the engine, and will want a different set of dynamics during driving, all of which can be achieved by removing some of the originally engineered-in tolerance from BMW with a remap. One thing I find quite annoying for instance is the throttle map - it gives the vast majority of the % throttle in the first 1/3 of the pedal, which annoys me. I'd rather it utilise all of the pedal.

Anyway, all of this probably marks me out as a very anal-retentive individual, so I'll stop my witterings. But in summary, I shouldn't really dismiss any and all aftermarket remaps as 'back-street tuning firms'. Some of us have a little more sense than Jonny Essex when it comes to chosing how to modify our cars! :)

I found this very insightful Ed, it helped me make my decision to remap - thanks :thumbsup:
 
Glad you found some of my ramblings useful :lol:

Sounds like the map is a good one too :) I've still not had a chance to get mine done - I keep having to change plans last minute for her indoors... I'm hoping early in the new year I'll be able to finally get on with it though!
 
Ed Doe said:
Glad you found some of my ramblings useful :lol:

Sounds like the map is a good one too :) I've still not had a chance to get mine done - I keep having to change plans last minute for her indoors... I'm hoping early in the new year I'll be able to finally get on with it though!

Your displaying phenomenal self restraint! I'd be out there like a shot :driving:
Looking forward to your feedback once its done :)
 
In addition to the points laid out by Ed, one also has to remember emissions and fuel economy. Both things that BMW have to meet stringent levels of for Euro legal reasons. Theyll also want to beat the competition with better figures so that private and company users from new would plump for the Z and not an SLK/TT.

Fuelling and emissions aren't always conducive to achieving the best engine performance so we end up with a compromise. Your 3.0si is now less compromised ;)
 
^ very true. The manufacturer new car emissions are far more rigorous than the mot test requirements too, hence bmw have to be more reserved.
 
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