Compression Ignition Addict
Join Date: Dec 2008
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ok so i just bought my truck from my dad its a 2008 f250 job 1 and its had the spartan tuner on it for probably 80-90k miles. the majority of the time it has been set on the 250 hp setting. It has just recently started to smoke more than normal pretty much all the time. im curious as to what others who are running the 250 hp tune are seeing as far as boost numbers at WOT. IIRC the truck used to have no problem getting to 40 pounds of boost and when i got on it yesterday the highest it got was around 30 pounds. im just looking for some input. thanks.
You have a boost leak somewhere.
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2012 Ford F-250 Lariat CC/SB
Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights