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      11-22-2012, 07:29 AM   #4
United Kingdom

phil200tdi's Avatar
Drives: 335i M Sport E90 LCI manual
Join Date: Jan 2011
Location: Aylesbury

Posts: 2,631
iTrader: (1)

Turn on gauge hijacking so you can see boost on the dash board (fuel gauge is my preferred position). With your mods, I'd expect to be hitting 15-16psi.

Ensure the car is warmed up, JB4 will target stock boost until up to a safe temperature. Mine take 5 or 6 miles to reach this temperature.. I have activated the flash hazards on warm up option.
Car: 2010 Jaguar XFR (Stock - For now)
Gone but not forgotten: Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)