Hot Dam Boost Pressure - Ford Powerstroke Diesel Forum

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post #1 of 5 Old 03-16-2011, 03:25 AM Thread Starter
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Hot Dam Boost Pressure

Hey this may be a Newb question but I am just trying to get some good info. I am running the Black Maxx with the Hot Dam files. I have the flo pro 5in exhaust with stock downpipe and S&B Intake. I am running the Hot tune with the "45" lock up. The converter never locks up until 50mph but thats beside the point. Anyways, my max boost pressure I have seen so far is 35psi, I have done about 4-5 full throttle runs from a stop or a slow roll and thats the best I have seen. Is this normal or does it seem a little low? I realize that boost is just a measurement of pressure and if for some reason mine just flows more air than normal (which I highly doubt). What is everyone else seeing for max psi with the hot tune (hot dam file)? When going full throttle the converter doesnt lock up until 60+mph but does the lower lockup speed play a roll in building boost? I'm thinking it may. Any comments??

2008 Ford F-350 CC/LB 4X4

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post #2 of 5 Old 03-16-2011, 04:30 AM
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yea, mine bout the same. minimax,4in all the way back, sfe airfilter. i set my lockup at 50 however it locks at 60. boost is bout the same. i was told just set lockup where u want it. if u set at 40 and it locks at 50, and 50 is what u want, leave it.
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post #3 of 5 Old 03-16-2011, 10:43 AM
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I have hit 48 psi with the hot Damn. My lookup is 45 and it is spot on. If it locks, then I roll into it, the boost will hit 48. Hope this helps.
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post #4 of 5 Old 03-17-2011, 02:43 AM
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the most I've seen on my hot damn tune is 54psi.

2010 F350 CC SWB FX4 loaded... Truxx leveling kit with an Icon adjustable trackbar, 20X10 XD Monsters with BFG 285X65X20 AT KO's, S&B intake, H&S Blackmaxx with DPF/Cat delete and MBRP Cool Duals, SD card full of KEM tunes that sits (unused) in the console. Audio by Focal, Audio Control, and JL Audio...

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post #5 of 5 Old 03-17-2011, 08:52 AM
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i'm not real sure on the H&S, but on my spartan i have hit 55 psi. i'm assuming it should be about the same.

-Mike

2005 F-250 Lariat

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