Best pre emissions engine for mpg
Discussion in 'Trucks [ Eighteen Wheelers ]' started by John Bertucci, May 20, 2021.
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Only Volvo I ever drove had the VED12. Felt pretty gutless. 7th direct with an empty 48' highboy I could barely hold a steady speed up a small hill. Engine brake was about as effective as holding your hand out the window.
jamespmack, spsauerland, swaan and 1 other person Thank this. -
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swaan Thanks this.
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ive had an 07 volvo with a d12. at first it used to give me 7.4 mpg until an injextor went out and swap from single to double tires. after that i never saw more than 6 mpg driving at 64mph 1450 rpm.
now i currently have a fl century 12.7l. 500 hp tune with a k31 turbo
i consistenly making 7.8 mpg driving 65 to 70 -
Currently….
03 FLD series 60
Borg Warner 702 turbo
Full tilt manifold
Donaldson pass thru muffler
Ecm program set up at 550
I run stepdeck. Can count on one hand loads last year over 30k. Most of my stuff is between 10-23k. No apu but have Espar set up on isolated battery. Consistent 7.3-7.6.
my cruise is set at 64. Anything above that makes no sense or money to me. 1525 rpm on a straight 10 with 3.70 gears.Vampire and olddog_newtricks Thank this.
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