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post #1 of 5 Old 05-05-2013, 06:04 AM Thread Starter
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Smile 6.4L Boost

Hi guys. New member! Just bought an '08 King Ranch F350 Crew Cab DR Super Duty with 38,000 miles, 6.4L, factory turbo, 4.10 rear end. Took it out last night on the interstate with cruise set at 65 MPH. Engine turned around 2000 rpm, but even on the flat terrain I was reading around 1 on the boost gage. Fuel mileage was between 13 & 14. Is this normal to have that level of boost without towing or hauling anything?

thanks in advance.
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post #2 of 5 Old 05-05-2013, 06:30 AM
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That seems extremely low. I'm between 5 and 10 on flat ground. If there's a head wind I'm a bit higher.

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post #3 of 5 Old 05-05-2013, 06:36 AM
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Your boost is definitely low that truck is capable of 50. And I'm sure you can raise that mpg too.

07 F250-SOLD

2011 Black CC SB Lariat F250, 2015 Retrofit, MPD IC Piping, H&S Mini Maxx, 5"Flo-pro Exhaust, Sininster Egr Delete, Recon Smoked Lights, No Limit S2 Intake, 20% Tint, BDS 8" 4-Link Lift w/ Fox Shocks & Dual Steering Stabilizer, Toyo MT's, 2-Piece Fuel Maverick 22x12 Wheels, PTM Grille Surround, T REX X-Metal Grille, super bright leds 6500K heads and fogs, kenwood double din, 4 hertz 210W door speakers 2 JL TW3 10s kenwood amps.

Thanks to bigblack for selling me his truck
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post #4 of 5 Old 05-05-2013, 06:47 AM
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Maybe he meant the first mark on factory boost gauge. In that case it would be 10psi and close to what mine runs on the highway.
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post #5 of 5 Old 05-05-2013, 06:58 AM
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ahh i forget about factory ones.. you may be correct good call.

07 F250-SOLD

2011 Black CC SB Lariat F250, 2015 Retrofit, MPD IC Piping, H&S Mini Maxx, 5"Flo-pro Exhaust, Sininster Egr Delete, Recon Smoked Lights, No Limit S2 Intake, 20% Tint, BDS 8" 4-Link Lift w/ Fox Shocks & Dual Steering Stabilizer, Toyo MT's, 2-Piece Fuel Maverick 22x12 Wheels, PTM Grille Surround, T REX X-Metal Grille, super bright leds 6500K heads and fogs, kenwood double din, 4 hertz 210W door speakers 2 JL TW3 10s kenwood amps.

Thanks to bigblack for selling me his truck
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