2012 5.7 Hemi Info !

[John Lang]

Can anybody tell me what RPM the 5.7 makes its max HP, and Tq! What kind of mileage, w/5 sp Auto , Just curious ! W/3.06 gear ! John

[emd]

According to Allpar 375 hp @ 5800 400 ft lbs at 4200

[John Lang]

Thanks EMD, I really needed to know that info as I could'nt figure out why my car shifted up at 5800 RPM ! My 392IE shifts up at 6400, and I kind of thought my 5.7 should do the same ! Just curious. There is a real difference from my 392 to the 5.7 !.......Thanks again John

[Lashlarue]

My 2010 RT automatic was still climbing at 6200 on the dyno when the operator shut it down.I get slightly better times shifting 2-3 at 6000.1-2 shifts are at 54-5700 no matter how you program it.Fastest I've ever gone is 92, and that was in mds mode seeing how fast I could go with eco on, traffic made me let up. Another member here mentioned he had got to 100.

[mdoaw12i]

Any rumors out yet on HP improvement for 2013??

[R/T-Randy]

Originally Posted by emd

According to Allpar 375 hp @ 5800 400 ft lbs at 4200

According to Dodge the auto transmission makes 372 hp @ 5200 rpm and 400 ft lbs of torque at 4400 rpm. The manual transmissions makes 375 hp @ 5150 rpm and 410 ft. lbs of torque @ 4300 rpm.

[Lashlarue]

Alzheimer moment. at Royal Purple did 106mph, onthe dyno in 3rd gear showed 125 mph@6200rpm.I got my best times shifting 57-5800 rpm.