Most efficient RPM - is there one? - Ford Powerstroke Diesel Forum
 
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post #1 of 4 Old 06-25-2008, 07:12 AM Thread Starter
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Most efficient RPM - is there one?

Just wondering if there is a "most efficient" RPM. My engine really quiets down at 1,600 RPM and I noticed that my mileage bumps up slightly if I keep it at 1,600 RPM - coincidence?
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post #2 of 4 Old 06-25-2008, 10:29 AM
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Originally Posted by Sarasota View Post
Just wondering if there is a "most efficient" RPM. My engine really quiets down at 1,600 RPM and I noticed that my mileage bumps up slightly if I keep it at 1,600 RPM - coincidence?
Best mileage in my truck is 1850-1950rpm.


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(Born on 11-20-98) F350 CC LWB 4X4
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post #3 of 4 Old 06-25-2008, 11:59 AM
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Watch your EGT's... 600 and low boost... 3-6 psi... Mine is happiest at about 1800...

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #4 of 4 Old 06-26-2008, 02:59 AM
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Whwn I want good milage, it's <700* on the pyro, <6lbs. of boost, and <2000 rpms, and don't lug it.

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