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2 sty 2024 · On a bone stock 6.4L HEMI you may only see power gains around 5-15whp with tuning. There is only so much power a tuner can squeeze out of a NA engine. Torque gains should fall in the same ballpark and you’ll likely notice better throttle and engine response.
I would say starting around 12.0-12.3 for a starting point. Monitor knock, until you have fueling dialed in perfectly. Then you can start with timing, the best way to find out when to start adding timing is by using a dyno to measure power gain or lose from a timing change.
29 kwi 2016 · 2016 3500 SRW. Engine. 6.4 HEMI. I’m having a hard time finding The line graph that shows the horsepower and torque curve of our 6.4’s specifically for our trucks.
18 lis 2023 · For many enthusiasts, the Chrysler/Dodge 6.4 HEMI V8 engine is one of the top engines in the SRT lineup today. Depending on the model, it produces nearly 500 horsepower and lb-ft of torque from the factory, and boasts outstanding towing capacity in Ram trucks.
This 392ci Hemi V8 utilizes a cast iron block and aluminum hemispherical-chamber cylinder heads and was factory rated at 485 horsepower and 475 lb.-ft. of torque. According to the seller, this unit was ordered from Scroggin Dickey Chrysler-Dodge-Jeep-Ram of Levelland, Texas, in 2021 and has not been installed in a vehicle.
The truck 6.4 Hemi engine offers more power and torque than the smaller 5.7L version and is more suitable for hauling and towing like its alternative turbocharged diesel engine option - the 6.7L ISB Cummins. Let's take an in-depth look at the 6.4L/392 Hemi engine design, its common problems, reliability, and longevity.
How much horsepower does a 6.4 L Hemi have? The 6.4 L Hemi engine has a maximum horsepower of 485HP and a peak torque rating of 475 lb-ft. This engine is also known for its excellent fuel efficiency, with an average fuel economy rating of 19 mpg in city driving and 23 mpg on the highway.
