G 270 CDI ECU Remapping!
Hi guys again some of your wisdom.!!
As we speak i just live and breathe till i get my 270 cdi 02 model into my hands so i can crack some nice trails!!
The torque seems to be more than enough but the horsepower is a bit on the low side, so i am quite eager to remap my ecu as soon as i get the beast in my hands!!
I have seen tuning companies boost it to 192bhp and around 600 torque which is a huge difference! I am wondering though whether this is a solution for the g or is the ml solution applied to the g?? If its the latter case, i am worried because the two cars have completely different gear ratios.
Anyone tried anything like that or any good company suggested?
I tried the big names on the road already amg/kleeman/brabus none of them offers any sort of solution so i suppose i am down to smaller players but i need to make sure i am not gonna increase the rpm too much as i want to go off roading a lot but i just need the extra power on the autobahn!
I am not sure if the 270CDI gearbox can handle torque like 600 Nm. There were a lot of gearbox problems with the G400CDI and the reason was very high torque. Also the actual G280CDI which uses the same 3.0 V6 engine like the G320CDI and the same gearbox like the G270CDI is detuned to 400 Nm(over 500 in the G320CDI but with 7G).
Frankly, I don't see the point. Road performance of the G270CDI is more than adequate and in that level of tune you know that the engine is going to have a normal life. Squeeze it and you'll pay the price in durability.
www.upsolute.com cc technology i think is the branch over here not sure.
brother used them for the van. they can remap now for better mpg i read the other day
Tom
I've got a 2004 G270 CDi, and before I got it I was thinking of re-mapping too. But I tell you what, it just doesnt need it! It pulls really well and at lower revs than the G500 for example. As a result for normal driving you always have enough power, and only feel it lacking when you are going over 70mph.
I was worried about the effect on the wear and tear of the engine, so I decided to just see how it goes for a month and decide later. Im someone who likes a bit of power (my other car is a Ferrari, and my Mrs drives a Porsche!)
I've got a 2004 G270 CDi, and before I got it I was thinking of re-mapping too. But I tell you what, it just doesnt need it! It pulls really well and at lower revs than the G500 for example. As a result for normal driving you always have enough power, and only feel it lacking when you are going over 70mph.
I was worried about the effect on the wear and tear of the engine, so I decided to just see how it goes for a month and decide later. Im someone who likes a bit of power (my other car is a Ferrari, and my Mrs drives a Porsche!)
Exactly my point!
Main points are going to be gearbox and clutch limiting your Max Torque . that is what it is all about with chipping diesels IMHO.
Yes you may decrease the life but you are going to sell it way before 150k miles which would be the time that this sort of thing becomes relevant.. saying that it is a risk and you may blow something up.. so just be aware of it.
You can get custom mapping instead of generic mapping.. you would need a 4wd rolling road suitable for 2.5t but sure they are available. Generic is always better but costs a 1/3 more (think £500 generic going on £700 for custom). Generic they did it on one car, turned it back a little and sell it to everyone .. Custom they actual get the max out of yours and turn it back a little so it is nearer perfection (but only 10-15% better than Generic).
Make sure you take it on a decent test drive afterwards .. I have judder from chipping due to too much torque making the drivetrain oscillate (VAG 1.9tdi doing 215hp/320 ftlbs) which I could have got tuned out (heavy foot lugging around 16-1700 rpm on that engine). I just drive around it as it gets max performance but do try this sort of driving not just the flat out "yes it is faster" test! Likewise I knew I was going to fry the clutch.. it survived 12,000 miles before I did it .. and it did not show up at the test drive. I put heavier clutch in and all was fine.. so far....
To get more power, the recipe is more turbo-boost and more fuel. The engine maps on the ECU are very complex 3-d data arrays which have been worked out to ensure reliability and emissions compliance under a wide range of operating conditions, even allowing for certain faults or non-optimal conditions. This will have cost MB hundreds of thousands of pounds, if not millions, to develop. So, to imagine that any so-called tuning company can do a better job for £700 is dreaming. They will dial-up the turbo-boost, you'll get more power, but you'll lose something else.
Additionally the shift-programming of the auto-transmission is embedded in the gearbox controller, not the engine ECU, with data exchanged on a high-speed CANbus.
I'd leave it as it is.
Yes MB spent a lot of money on it.. but they were also working 300,000 mile MTBF (mean time between failure) .. and from Africa to Artic.
To mod is a risk
1. most folk are happy with 150,000 miles MTBF .. BUT you may still get a failure if you chip it.
2. most folk never see -40C or +55C
3. most folk are on decent quality fuel not a 10% water with zero sulphur(lubricity)
4. most folk don't load engines for more than 15 secs at time because they run out of load (ie 0-70mph is as fast as they ever do).. now if you tow then you need to understand the risk .. again.
5. more boost = more fuel for a diesel (one does not happen without the other) = higher pressure/temperatures (both on pistons and in heat management) = smaller MTBF
6. So £700 can get you a 15% gain (e.g. 160hp->215 hp)
There is a risk but no gain is without risk. Yours is to judge your comfort with that risk.
Fair comment about auto box.. but again there are tolerances and you can normally exploit them without pain.
(I have built for DIY turbo systems with ECU mapping etc .. currently have a turbo in bits I am tweaking in my footwell... no standard cars in the 4 I run; 3 are turbo'ed, 2 non factory, one is double standard HP on stock parts=exploiting tolerances :wink: )
You work at ie tweak the turbo with your feet :lol:
My I am impressed
only other interperpation is that you have housed it temporiarly in the footwell,Question? does it not get a wee bit hot :shock: ,
Otherwise mgrays I am totally in agreement with your arguments / contribution.
In that if we had had the Galaxy TDI chipped before we took her to Spain in the summer, loaded to the max, roof rack and trailer with bicycles on top etc etc
pulling up a very very very long motorway incline in the heat of the afternoon, A/C on of course.
I do recall the engine oil temp was at least 120 degrees centi, possibly 125?
So with a bit of chipping
We would probably have well cooked her.
However in N Ireland
Not a problem :roll:
Marcus
Bit in footwell was just the bearing centre.. Trying to find a very tight banjo fitting for 8mm pipe from what I believe was M14x1.5 but turned out some US boy had found that too hard so it is 3/8" NPT. Still waiting for a special slim 3/8" NPTM x 1/4" BSPF reducer.. had to give up and put it back in .. MOT passed last night :wink: but it is a 2-3 hour job to get in and same out so that is a job for later .. trouble is the silicon or rubber hoses used on the water cooled section cannot take the heat .. so I need to put steel "tails" on to move the rubber starting point away. So not fiddling my feet or rear mounted turbo.. :lol: .. but off to do that 40C ambient heat test instead :lol: (all very non OEM!)
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Hi guys,
I drove a friends 270 cdi the other day, really great drive to be honest , quite impressed by the torque feeling! I was really thinking it would be much slower but since it has 87% of the torque of the G500 at only 64% of the revs well it makes sense.
I am keen though on the other hand to give a go to a remapping of its ecu. I have seen a couple of solutions increasing bhp to 192 and torque close to 500!
My primary use would be day to day commuting but wkds i will be off roading for sure. What bothers me is whether the remapping they do is g wagen specific or whether its just for the ml 270 cdi engine?? In this case, gear ratios are quite different so i wont be keen to do that.
Also i am worried whether the extra power i am gonna get by increasing the bar on the turbo after the remap , its gonna affect off roading since the rpms that my torque will be available its gonna be up higher!
I tried calling amg/kleeman and brabus but no luck , so i need some advise from people around. I have checked these guys on blackpool seems they do a good job
http://evolutionchips.com/dealer_chipsearch_1.asp?key=59
as well as the following ones:
http://www.mijperformance.com/remap-mercedes-benz.html
Any advise highly appreciated guys, hope someone have tried smthg similar and can share some wisdom!!
Cheers