i got got a set of used autometer phatom gauges and i hooked my boast gauge up and i only make 15 lbs of boast on my stock tubro is that right?? reason why i ask is cause i used to use a oil pressure gauge for my boast and made 20lbs

 

Depends on how much fuel you've got. I'd expect to see a bit more than 15psi if you've got no leaks and the turbo's in good shape. IIRC, somewhere in the vicinity of 22 - 25 psi is about right for a hopped up IP on a stock charger. The Phantoms are electric, are they not? Check your ground for the boost gauge unless they share one.

Otherwise, maybe there's a reason they were sold.

 

mine makes 25 mildly tweaked pump and measured at intake. banks boost gauge.

 

My truck run's around 30 lbs with a stock turbo, maxed pump, and 4 in down pipe. the exhaust seems to have gave me about 5 lbs extra by my snow performance display.

 

My truck runs about 22 with pump work and 4" exhaust after the stock downpipe

 

Seems like my truck with completely stock engine, intake and exhaust makes for a barely audible turbo. Is that what others have found before moving away from a stock configuration? I get no black smoke and good acceleration but thought I would check.

 

smoke doesnt mean anything except un-burnt fuel, which is better for the truck. my truck is stock exhaust but straight piped with a tweaked pump and star-wheel a half of a turn and i see smoke if i really step on it. im going to tune the pump til theres no smoke at all