Anybody have chiptuning on their X35d ?

iwant335i · 08-10-2008, 06:29 AM

How much power did you gained ? How much the performance went better ?

Steved · 08-10-2008, 08:15 AM

Not yet, but we (Drivers Republic) have tried a tuning box and that makes quite a positive difference in driveability and fuel economy. Economy rises from an average of 25mpg to just under 30mpg, it only takes a light brush of the throttle to make rapid progress and it's easier to travel quickly in 'D' rather than needing to drive in 'DS'.

I suspect a remap would produce far better results. The tuning box only increases fuel pressure whereas a remap would also adjust fueling duration and boost pressure.

I wouldn't recommend aiming for maximum figures, but it would definitely be worth making modest adjustments to improve driveability and economy.

08-10-2008, 06:29 AM	#1
iwant335i Lieutenant 120 Rep 446 Posts Drives: 550i Join Date: Jul 2008 Location: United States iTrader: (0)	Anybody have chiptuning on their X35d ? How much power did you gained ? How much the performance went better ?
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08-10-2008, 08:15 AM	#2
Steved Lieutenant 50 Rep 503 Posts Drives: M3 CSL, AMG ML63, B7 RS4 Avant Join Date: Feb 2006 Location: England iTrader: (0)	Not yet, but we (Drivers Republic) have tried a tuning box and that makes quite a positive difference in driveability and fuel economy. Economy rises from an average of 25mpg to just under 30mpg, it only takes a light brush of the throttle to make rapid progress and it's easier to travel quickly in 'D' rather than needing to drive in 'DS'. I suspect a remap would produce far better results. The tuning box only increases fuel pressure whereas a remap would also adjust fueling duration and boost pressure. I wouldn't recommend aiming for maximum figures, but it would definitely be worth making modest adjustments to improve driveability and economy.
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