2015 S63 won't do better then 4.8 0-60
Did you have before and after dyno testing done along by the Renntech installer ? If so what kind of power was the engine putting down ? If not, I suggest getting a dyno test done now since the Renntech tune was wiped and the car is restored to factory spec. If the engine and/or transmission is not functioning properly, that should manifest in a proper dyno test.
AMG engines are generally rated conservatively, and often have higher than expected dyno test results; if your car is putting out less than specified power, you should bring that result to the MB dealership and demand they fix the problem - along with the potentially dangerous shutoff issue that seems to be affecting some of these cars.
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There is obviously something wrong with the car. I would dyno it without the Renntech tune. If the specs are not in line with factory figures, go to the dealer and tell them to fix it.
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Here, the S63 is only sold in the 4matic version and while the S65 makes more power/torque, it is the slower car of the two...




Loved my old V12TT SL but as of late smaller V8 engines seem to be the focus of tuners and they easily match V12 power (986HP V8 versus the 900HP V12). All of which is over the top, of course...
Last edited by F1BHP; Sep 18, 2015 at 03:38 PM.




Plus you make it sound like the S63 has no torque. Engines have been tuned to over 1000 lb/ft torque and that's supposed to be limited. That seems more than the Brabus 900 Rocket torque...
Coming back to the original post. That car obviously has a power output issue.
But buying a S63 vs S65 has nothing to do with speed. It's driving experience (and the size of the buyers wallet
)
M
Last edited by DATURK; Oct 22, 2015 at 09:09 PM.
Despite having the 7g-MCT, the S63 (sedan and coupe) lack launch control. AMG deliberately left this feature out for some reason, as other models with an identical drivetrain i.e. CLS63 and E63 do have it.
I would think launch control can be emulated to some degree by enabling dyno mode (to turn off ECT), then starting the car, enabling S mode, and brake torquing to maybe 2000 rpm.
I wish I would have read these post prior to purchasing this car. Turned in lease on e63 which was a rocket for this dud. They advertise 3.9 but not even close. Three trips into the shop and all they have done is reprogrammed the transmission. Helped on shifting but no help on takeoff.
They are saying this is acceptable, how can this be.
Looking for advice.
Thank you




I wish I would have read these post prior to purchasing this car. Turned in lease on e63 which was a rocket for this dud. They advertise 3.9 but not even close. Three trips into the shop and all they have done is reprogrammed the transmission. Helped on shifting but no help on takeoff.
They are saying this is acceptable, how can this be.
Looking for advice.
Thank you




I wish I would have read these post prior to purchasing this car. Turned in lease on e63 which was a rocket for this dud. They advertise 3.9 but not even close. Three trips into the shop and all they have done is reprogrammed the transmission. Helped on shifting but no help on takeoff.
They are saying this is acceptable, how can this be.
Looking for advice.
Thank you
Had the S63 rental for 2 separate weeks (and 2 different cars) and each time was very disappointed with performance.
Driving S8 Plus now and I don't feel any difference in power vs my E63, could not be happier.





