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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications AC Schnitzer Tune for 550
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      07-27-2011, 04:39 PM   #1
E92LNGCGY
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AC Schnitzer Tune for 550

Does anyone have the AC tune for 550? Can you share your experience? This seems like a better option (performance wise) than the Dinan.

Is it a reflash like Dinan? I've heard power increase to 540hp and torque to 750NM (553 ft-lb) is this true?
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      07-29-2011, 05:13 AM   #2
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I have ACS suspension and exhaust ... waiting patiently for a ECU product for my 550 from them.
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      07-29-2011, 04:09 PM   #3
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Please provide a review when you install the ECU. Looking forward to it. Thanks.

What kind of numbers are you expecting?
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      07-29-2011, 04:34 PM   #4
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540Hp seems very high with just an ECU tune.

I have the Hartge ECU + Supersprint exhaust = 497Hp/720Nm ( not dyno verified ).
This gives performance 0-200km/h < 15s.
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      07-30-2011, 01:28 AM   #5
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Those numbers seems inline with Dinan's numbers. What is your opinion on the tune?
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      07-30-2011, 01:36 AM   #6
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@Delvek, Hi, I am new to this forum. I am thinking about going for an F11 with m package but understand that you have used ACS to lower it a bit more. Since my budget is stretched already, going for Adaptive Drive will not be an option. Do you think Adaptive Drive is a must for keeping the car "comfortable" for the wife and kids? Btw, I am going for the 19" wheels. Thanks!
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      07-30-2011, 02:37 AM   #7
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Quote:
Originally Posted by E92LNGCGY View Post
Those numbers seems inline with Dinan's numbers. What is your opinion on the tune?
I´m very happy with the tune. Big torque and smooth power delivery.
I´ts just as smooth as before, but much more powerful. You feel a big difference at gear shifts. It never looses forward thrust.

I got almost 3s quicker time to 200 km/h compared to standard ECU.......
Can´t notice any change in fuel consumption.
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      07-31-2011, 04:54 AM   #8
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Quote:
Originally Posted by PieterF11 View Post
@Delvek, Hi, I am new to this forum. I am thinking about going for an F11 with m package but understand that you have used ACS to lower it a bit more. Since my budget is stretched already, going for Adaptive Drive will not be an option. Do you think Adaptive Drive is a must for keeping the car "comfortable" for the wife and kids? Btw, I am going for the 19" wheels. Thanks!
I would consider the AD a must have. I dont use comfort that often, a couple of weeks ago I was driving back from Versailles, France (about 4 hours) in a caravan of cars so I was just plodding along, I put it in comfort mode and still despised it. Without the ACS suspension the second I got in the car I switched it to sport (suspension only) mode. With the ACS suspension it felt like it was in sport (suspension only) mode even though it was in normal. I still switch it to sport (suspension only) mode when I get in the car and it feels very grounded sometimes too grounded with the feedback, but I like that.

I dont know what options your considering but AD and sport transmission would be must haves over most other items if your buying a 550.
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