57L V8 HEMI MDS VVT Engine +$1,495: 5.7L V8 HEMI MDS VVT eTorque Engine +$1,695: 3.55 Rear Axle Ratio +$95: 4-Corner Air Suspension +$1,805: 33 Gallon Fuel Tank +$445: 3.92 Rear Axle Ratio2021Ram 1500 Limited 2WD Crew Cab 5'7" Box powered by 5.7L V8 Gas Engine with 8-Speed Automatic transmission. Engine: 5.7L V8 HEMI MDS VVT eTorque, Transmission: 8-Speed Automatic (8HP75
Essentially the V8 HEMI becomes a 4-cylinder engine when MDS is activated. When you need power and dig into the throttle the MDS kicks the cylinders
Engine hemi 5.7. For reference, here is why you won't notice a difference between 3.21 and 3.92. This chart has the RPMs both trucks will be at, at 65 mph. If your truck (3.21) was in 6th gear holding steady at 65, then with the 3.92 it will be in 7th instead (the blue cells); but note the RPMS, 2191 vs 2194.
MDSvs Non-MDS HEMI Cams. Most 2006+ 345 HEMI engines use MDS technology. Cars with a manual transmission as well as HD 2500 and 3500 trucks do not use MDS. The further the 5.7L V8 HEMI valves open the more air is flowing in and out of the cylinder. *Only 2009+ VVT HEMI engines use cam phasers, so this isn’t a concern 57L V8 HEMI MDS VVT 8-SPD AUTO 8HP75 SRW 3.21 6900 1900 4997 2921 2076 3700 4100 13900 13900 8520 5.7L V8 HEMI MDS VVT 8-SPD AUTO 8HP75 SRW 3.92 6900 1900 4997 2921 2076 3700 4100 17000 17000 11620 RAM 1500 4X4 CREW TRADESMAN 5'7" BOX (2020DT6L98) Engine Trans. SRW/ DRW Axle Ratio GVWRAlongwith a frugal and torque-rich diesel six-cylinder engine, the Ram enhances its standard V-6 and optional Hemi V-8 with hybrid systems. Bridgestone Dueler H/L Alenza, 275/55R-20 113T M+S.
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