How important is the Boost Gauge? - Diesel Forum - TheDieselStop.com
'99 & up Upgrades and Aftermarket - 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 5 (permalink) Old 03-14-2005, 09:19 AM Thread Starter
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How important is the Boost Gauge?

In my '97 I only put in a Pyro and Tran temp. gauge. My '99 will be used to and from work empty and pulling a fifth wheel in the summer on weekends. How important is a Boost gauge and what is the use for it. Knowing this my answer my question. A review of why the gauge is used would be helpfull. [img]/ubbthreads/images/graemlins/biggrin.gif[/img] [img]/ubbthreads/images/graemlins/tongue.gif[/img]


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post #2 of 5 (permalink) Old 03-14-2005, 09:44 AM
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Re: How important is the Boost Gauge?

I use mine to make sure the turbo is working up to par because I have run it in the stock setting and with the tuner and taken note of the readings. If the readings ever drop off, I can possibly head off a problem with the turbo or perhaps see a leak in the system like boots needing tightened. Also, the turbo runs 16-18lbs. stock and with a chip, you can get to the 25lbs rating on the stock turbo in a hurry and you may want to back off at that point before getting a ses light.

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post #3 of 5 (permalink) Old 03-14-2005, 10:42 AM
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Re: How important is the Boost Gauge?

Here's a senario of why you need a Boost Gauge:

Yer pull'n yer FW in the summer, up a hill/grade. Yer in the gear that you can maintain + or - 2600 RPM, you've got 15 to 20 lbs of boost built up and holding, yer EGTs are in the 8 to 950*, yer tranny is in the safe temp range.....

That means, yer make'n all the Horse-Power yer PSD will make (Top of the power curve), at the Boost pressure (Max >safe< boost) yer engine was was designed to make that power at, yer EGTs are within a safe range (no meltdown) and so is yer tranny (no parts on the road).... LIFE IS GOOD.

Take the Boost out of that equation ? you've lost one of the indicators of optimum engine performance. given the right/wrong conditions... you could over boost and set yer SES light, yer PCM will go into a De-fuel mode.... Loss of power (Jack Nicholson look)... Everything is relevent.

[img]/ubbthreads/images/graemlins/shrug.gif[/img]

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2K, F-350, XLT, XCAB, 2WD, DRW, 6 Spd, 3.73LS, 4 Pod pillar mnt, EGT, Boost, Trans/Engine temp, Fuel press. guages, Quadzilla 50/75/120,ES AIS w/fender mod, Shimmed FPR, Dahl pre-pump filter, HX Mod, Racor (Mod'd) CCV, Premo oil Refiner, W/Wheel with both TAGs, Banks W/gate actuator, DT466 CPS, 6.0 Intercooler, Banks I/C tubes & DPP boots, 25psi BPRV, Full 4" exhst, AeroTurbine w/exhaust guide, MagnaFlow, Intake Heater Delete, Heater core bypass, 203* Thermo, Coolant Fltr., "Hutch" Tank & Fuel system Mods,fill pipe fix, Mag-Hytec Dif cvr, Fumoto, Bilstiens, SafeTplus Steering Dampner, Centramatic's, Ride Rites, SilverStars, Clear APC Head/Tail/Corner & all Marker lights, 2 850cca Optima's, Ultra Boards, Burlwood Dash, XM radio, Billit Grill (Black). TTMs/C-beters. Pull a 32 ft Montana FW. 102K
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post #4 of 5 (permalink) Old 03-14-2005, 11:24 AM Thread Starter
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Re: How important is the Boost Gauge?

Sounds good to me. I think I'll put a Boost gauge on this one. I got the Evo in the mail today. I have to try it even though the gauges aren't in yet. [img]/ubbthreads/images/graemlins/phoney.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img] But I'll be carefull. [img]/ubbthreads/images/graemlins/wink.gif[/img]


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post #5 of 5 (permalink) Old 03-14-2005, 02:10 PM
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Re: How important is the Boost Gauge?

Don't do it! You'll regret it. [img]/ubbthreads/images/graemlins/frown.gif[/img]

The boost gauge is indeed a handy reference. If you're modded, you can use it to keep yourself out of the danger zone. If you're not, you can use it to check for leaks.

Either case, I use mine to make sure I don't push it too hard until it is warmed up. I also use them to try to maximize economy. When pulling away from a stop, I try to keep my 7.3 below 5 psi, and my 6.0 below 8 psi.

"Nothing in life is so exhilarating as to be shot at without result." - Sir Winston Churchill

May your road stay clear & dry, may your fuel never gel, and may you never be outsmarted by your idiot lights.


2002 F-250 XLT SC LB 4x4 7.3PSD 6-Sp 3.73 L-S, Snugtop Snuglid Tonneau, 235/85 MC HTRs, <span style="color: red">DPTuner F5</span> AFE Stg II, Turbo LifeSaver, MAP BRV, Autometer Cobalts, Magnaflow 4", WW, TAG, AIH del, CCV, AirDog, In-tank, Harpoon, HPX, ITP fuel sys, LL8 del, 203*, Oilguard & SP Diesel bypass filtration, ART rotors, PFC pads, Heater Core Ctl Valve, Bilsteins, Velvet Ride Shackles, South Bend Clutch, <span style="color: green">21.27 mpg</span>

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