SLK 350 Re map - Mercedes Benz SLK Forum

Performance MODS for the R171 Tuning and Performance modifications for your SLK

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#1 Old 08-15-2015
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SLK 350 Re map

Recently contacted DMS after spotting their add in EVO magazine. Did a bit of searching and read good things about the remapping they provide, so contacted them in reference to my SLK 350. Below was the reply






For the SLK 350K, we can take the power from 272bhp up to 296bhp with the
torque raising from 258lb/ft up to 288lb/ft We also remove the top speed
limiter. The 0-60 will be down from 5.4 to 4.7 seconds, the throttle
response will be sharp and aggressive improving the experience of driving
through the whole rev range




Now over the years I have tuned many cars using carbs, cams, exhausts, head flows etc etc so have a good idea of what you can extract from various engines. I however havn't much knowledge on remaps. The increase in bhp and torque seems reasonable but the 0-60 times don't make sense.


Any thoughts on this would be welcome
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#2 Old 08-15-2015
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these gains are good for a NA engine, and sound about right (I always take 0-60 times with a pinch of salt)....


However when I looked at this I was told the ECU could not be read through the OBD (can be written to bizarrely) and had to be removed to read the map off of it.


If there are just writing to the ECU I would be wary of being given a 'generic' map..
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#3 Old 08-15-2015
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I forgot to mention costs Ł595+vat.


As I said reviews don't look bad but have not found a SLK with DMS remap.
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#4 Old 08-15-2015
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0-60 in 4.7.... how is that possible
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I'm used to tuning cars the away you are , the Stone Age way !
I'd be surprised if those gains are possible on a naturally aspirated engine , what can they improve to make the gain , alter the mixture and advance the timing then run it on highest octane fuel poss ?
Are they willing to dyno before and after ?
I've only ever read good things about dms but that said , they do take out some rather large adverts in magazines :
Good luck if you go for it , charging that much there must be a noticeable difference .
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#6 Old 08-15-2015
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Originally Posted by slk01 View Post
0-60 in 4.7.... how is that possible
I have headers and a tune, I have beat that! But I also have 2 more cylinders


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#7 Old 08-15-2015
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Thanks jbanks15.
Don't think that helps with my little v6.Is it possible that we can ever buy a car and say the power is perfect, or is it in our dna to find more
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#8 Old 08-15-2015
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#9 Old 08-15-2015
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I got 5.3 with oe tuning ecu, full tank of petrol 7G tronic slk 350 ... so these guys claiming 4.7 are talking bs or my cars ecu is broke
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#10 Old 08-16-2015
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I will email them back Monday and mention figures on bhp and torque look reasonable but the




4.7 sec 0-60
Will need convincing.


No one can ever guarantee such figures as we know all cars are different
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have you tried cks in Watford for more tuning options


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#12 Old 08-18-2015
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Hope this post doesn't come up twice as first attempt not showing.


So to all that have followed this post. I got a email back from DMS regarding the 0-60 claim and this was the reply


Hi Nick,

It is mostly down to the fact that we bring the torque peak so much lower in the rev range, where at standard it take a lot longer to get to the acceleration much more dramatic.

Regards
Tony


SO NOW DESCISION TIME
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#13 Old 08-18-2015
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You will never get the 0 to 60 times even stated by Mercedes!!!!


These figures have to be taken with a pinch of salt as they remove the wing mirrors, all the body gap's are tapped up to improve air flow, a dribble ov fuel with a red hot track and a cool breeze blowing to top it off.....
oh' and they forgot to mention there test driver is a 4ft 3inch anorexic horse jockey that used to ride Red Rum at the grand national ..
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Not sure about the 4.7... More like 5 seconds to be honest! However, their explanation on peak torque lower down the rev range makes sense!
Use a dose of Redex + BP Ultimate fuel, see what happens. +24hp 30lbs/ft
Perhaps give MSL performance in Birmingham a ring or Angel tuning (Banbury?) I've heard a bunch of horror stories at CKS performance but every cloud has a silver lining? DMS are good from what i've heard.
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#15 Old 08-19-2015
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Quote:
Originally Posted by wardy1965 View Post
Hope this post doesn't come up twice as first attempt not showing.


So to all that have followed this post. I got a email back from DMS regarding the 0-60 claim and this was the reply


Hi Nick,

It is mostly down to the fact that we bring the torque peak so much lower in the rev range, where at standard it take a lot longer to get to the acceleration much more dramatic.

Regards
Tony


SO NOW DESCISION TIME



bro its bs its just high stalling the car guaranteed. but id rather you do it so then we know for sure if its 4 realz or not
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#16 Old 08-20-2015
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Quote:
Originally Posted by Paulwirral View Post
I'm used to tuning cars the away you are , the Stone Age way !
I'd be surprised if those gains are possible on a naturally aspirated engine , what can they improve to make the gain , alter the mixture and advance the timing then run it on highest octane fuel poss ?
Are they willing to dyno before and after ?
I've only ever read good things about dms but that said , they do take out some rather large adverts in magazines :
Good luck if you go for it , charging that much there must be a noticeable difference .
The gains do seem a bit optimistic for a NA engine. I've had a merc Cdi and a VW Tdi chipped with good results. But my 2.0 NA primera felt a bit more flexible but it wasn't a huge change.
If you go for it I hope I'm proved wrong, and if they do a dyno please post on here.

Cheers,
Mark
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