Compression Ignition Addict
Join Date: Apr 2012
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Lifting a truck causes a loss because of the upward draft causing more drag among other things. If you kept the lift to a minimum like a leveling kit and 4in rear blocks, it would have minimal effect. Having a dually with 410s and 35s will also have minimal effect as the tires cause the truck to be geared similar to the srw 373 trucks.
I will not have any hard numbers for you but im putting 315s on my 03 dually this weekend with 4in lift. Im hoping my mileage will remain the same but help rpms on hwy along with making the truck look better
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03 F350 7.3L Auto CC LB Dually 410's (LS Rear)315's
PHP/Beans tuned, 250/100 FF inj's, BTS Tranny, Strictly Diesel complete fuel system w/RR & FB Delete, Pius LASB from Irate, Swamps hvhf IDM
Autometer Nexus Guages (TT,FP,BP,EGT), 4"MBRP, DieselSite Coolant filtration system/billet housing/HP X-Over line, Baldwin PA2818(6637) RR Boots, 26 row 6.0 Tranny & PS Cooler, LarryB's Denso Starter