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Was mooching round the web this morning and I have found someone that offers a tuning box for the Cooper 1.5D

Claims are 146 HP /151HP depending on which box you go for .

I am somewhat tempted but I am worried about longevity /clutch /gearbox /DPF issues. Don't really want to be a guinea pig either as there are no specific reviews from anyone on the website either.

You have to wonder how well it would go if those HP figures are true though???

http://www.tdi-tuning.co.uk/car_and.../cooper/15_d_114_bhp_116_ps_85_kw__C4617.html
 

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Sounds like it could be cool, but I wouldn't buy it until you have seen some reviews online. I wouldn't want to get it and then have it be a huge disappointment. They should have a video or something that shows you it in action. I think that is just good business.
 

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They fitted it for me at Durham (I live local) although Its very easy to do, have not had it on the RR but its obvious the difference, the torque improvement is very noticeable, they quote for SD 170>215ps and 360>495 torque, there are different maps you can choose 1-3 with +1,+2,+3 settings, I found on mind being an automatic having the +2s or +3s (other than 3+3) the gearbox didn't like it if I go full throttle and it changes over 4k revs, the setting I have it on now works without issue and the pull in any gear is welcome :)
 

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They fitted it for me at Durham (I live local) although Its very easy to do, have not had it on the RR but its obvious the difference, the torque improvement is very noticeable, they quote for SD 170>215ps and 360>495 torque, there are different maps you can choose 1-3 with +1,+2,+3 settings, I found on mind being an automatic having the +2s or +3s (other than 3+3) the gearbox didn't like it if I go full throttle and it changes over 4k revs, the setting I have it on now works without issue and the pull in any gear is welcome :)

stevens you install the kit from tdi-tuning.co.uk
 

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Remap is the way to go!

I'm not sure if the new BMW modular engine series control unit has been cracked yet, but if available, a remap is the way to go.

I've been driving DI diesels for 20 years and have tried many Tuning Boxes along the way, but the remaps I've had have be sooo superior in driveability there's no comparison.

The last two BMW remaps were DMS, one was via OBD port the other was a CPU out and on-chip piggyback programming.

One thing to note - do not believe the mpg gains!!

The remap alters the 'throttle' pedal to fuel flow at injector ratio, as a consequence the on board CPU thinks your travelling distance for much less fuel! Remember that the actual physical fuel rate is not measured for mpg calcs, the fuel used is determined by average injector demand.

The only way to validate is a tank to tank fill and I found a degradation of mpg by about 10%.

Still very impressive for such a greaterformancee gain >:D

Last point, the remaps were never detected by BMW service and I had no problem with Catalyst or DPF, just needed to change the rear tyres more often ;)
 

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The Clubman Cooper D has 150hp, so the 3-cylinder engine is definitely capable and safe of running at that... As to whether a tuning box offers as much 'safety' as a potential full remap then I don't know.

@stevens How is your SD holding up, I wonder whether it would be worth the purchase - what is it theoretically running at now in terms of power?
 

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The Clubman Cooper D has 150hp, so the 3-cylinder engine is definitely capable and safe of running at that... As to whether a tuning box offers as much 'safety' as a potential full remap then I don't know.

@stevens How is your SD holding up, I wonder whether it would be worth the purchase - what is it theoretically running at now in terms of power?
The Clubman Cooper D engine is a 2.0 lt engine, thus a completely different block of engine to the 1.5 lt one.
Question is whether there is use of the same 1.5 lt engine block in a more powerful version than the 116hp, using the same materials, to give us an indication of whether the materials can actually handle the extra power

Personally I am thinking of the RaceChip Ultimate option for my F55 Cooper D, but hesitating a bit due to possible reliability issues that may rise

Anyone used a Racechip on his Cooper D with sufficient mileage?
 

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The Clubman Cooper D engine is a 2.0 lt engine, thus a completely different block of engine to the 1.5 lt one.
Question is whether there is use of the same 1.5 lt engine block in a more powerful version than the 116hp, using the same materials, to give us an indication of whether the materials can actually handle the extra power

Personally I am thinking of the RaceChip Ultimate option for my F55 Cooper D, but hesitating a bit due to possible reliability issues that may rise

Anyone used a Racechip on his Cooper D with sufficient mileage?
Yeah I realised that the other day when looking at the Clubman's on the configurator, I didn't realise it was the 2.0 engine at the time.

CelticTuning will also tune it at 'Stage 1' to circa. 140hp.
 

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I don't think the engine being able to take it is in question as BMW having it running with higher outputs. It's really whether the integral parts that may have been downgraded can take it.

There is a local tuner to me that offer 30bhp and 50ib.ft of torque. But it's £500, imagine they'll get similar results for a Cooper D too.


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I don't think the engine being able to take it is in question as BMW having it running with higher outputs. It's really whether the integral parts that may have been downgraded can take it.

There is a local tuner to me that offer 30bhp and 50ib.ft of torque. But it's £500, imagine they'll get similar results for a Cooper D too.


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And I suppose they consider it to be safe without changing any of the integral parts?
 

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Sure it is.


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And we know this, how?

The B48 engine might be up to the task, though one wonders exactly why BMW thought it necessary to alter the internals for the higher powered JCW vs the MCS. The pistons being modified to reduce the compression ratio while the beefing up the turbo for higher boost makes sense, but what else changed? And why? Piston rods beefed up? Different bearing composition? Valves different? Increased cooling capacity? Why?

The rest of the drivetrain has apparently also been upgraded to support the increased JCW output. Clutch, transmission, differential, etc.

So to get a paltry 30 HP increase over the MCS, the JCW got significant mechanical tweaking, I'm guessing the main object was to improve reliability.

Adding another 30-50 HP on top of that leaves me wondering how the BMW engineers would react to such an event-- I'm guessing that there would be further mechanical upgrades to handle the increased power. The fact that nobody is performing such upgrades after installing a RaceChip or JB or NM tune is interesting and I am curious about the long-term impact of running such power through a stock drivetrain. You may be completely correct that there is no issue with the increased power, which speaks to an overkill/better safe than sorry mentality on the part of the BMW engineers.

The next few years should show us if there is no downside to a tuning module with respect to reliability. Until then, categorically asserting there is no risk seems premature.
 

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And we know this, how?



The B48 engine might be up to the task, though one wonders exactly why BMW thought it necessary to alter the internals for the higher powered JCW vs the MCS. The pistons being modified to reduce the compression ratio while the beefing up the turbo for higher boost makes sense, but what else changed? And why? Piston rods beefed up? Different bearing composition? Valves different? Increased cooling capacity? Why?



The rest of the drivetrain has apparently also been upgraded to support the increased JCW output. Clutch, transmission, differential, etc.



So to get a paltry 30 HP increase over the MCS, the JCW got significant mechanical tweaking, I'm guessing the main object was to improve reliability.



Adding another 30-50 HP on top of that leaves me wondering how the BMW engineers would react to such an event-- I'm guessing that there would be further mechanical upgrades to handle the increased power. The fact that nobody is performing such upgrades after installing a RaceChip or JB or NM tune is interesting and I am curious about the long-term impact of running such power through a stock drivetrain. You may be completely correct that there is no issue with the increased power, which speaks to an overkill/better safe than sorry mentality on the part of the BMW engineers.



The next few years should show us if there is no downside to a tuning module with respect to reliability. Until then, categorically asserting there is no risk seems premature.


Nah.


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Just ordered the Racechip Ultimate Connect for my MINI COOPER D F55. Expecting it early next week, so I will get back with a brief review.
 
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