Originally Posted by Timberwolf
Coming from a 997 Turbo and 135i as a daily, I've been able to extract solid gains with basic boltons.
I'd love to hear from current owners and experts as to what they think this car will yield with these mods, and what they think the DCT will handle for torque!
- Downpipes and exhaust (I would only do DPs to extract some sounds and mostly power)
- Proper intercoolers be it water to air or air to air
- Methanol injection. Twin CM10s with a 75% meth mix would be nice octane boost and would prevent heat soak.
If the car car does 540whp and 520 wt on an average dyno, is 650/600 the reality and probably the limits of what the stock clutches can manage?
I'm sure the X5/X6 guys can chime in.
Any ideas on the limits of the DCT?
The engine is different to the X5/X6M (see some info below)
The DCT transmission itself has a design limit of 700nm/516lbs-ft
The stock S63B44T0 has already an output of 680lbs-ft...
Over time there will be tuners offering various options but as it's already
been the case with the N54/N55s BMW has and will continue to come down hard on engine modifications when it comes to engine sw/turbos etc
So it will always be a gamble when it comes to warranty coverage and a S63B44T0 is
not a cheap part
There are a couple folks out there working on tunes such as G-Power, Mannhart, ACS, Hartge,Dinan and others.