dodge man
Super Star Member
I had my car dyno tuned yesterday and I thought I would share the numbers and experience. The car is a 2010 Dodge Challenger with the 5.7 hemi, auto tranny. I put exhaust, a cold air intake, catch can, 180 degree thermostat, and a tuner on it(Diablo Predator). At the rear wheels, it made 373 horsepower and 410 ft-lbs of torque. They said you can assume 20% loss between the back, but taking a more consverative number of 15% I'm making 431 horsepower and 470 ft-lbs of torque. The pulls started at 2600 rpms, so I don't know what the torque was down at low RPM's, but it made over 300 ft-lbs from 2600 rpms to the redline of 5700 rpms. It made over 400 ft-lbs between 3500 rpms and 4800 rpms. The mods I installed on the car cost about 2k. The exhaust I put on the car is stainless steel, you can get by on a lot less money if you go cheaper on the exhaust. With cheaper exhaust, a guy might get by for $1000 or a little more.
The newer late model hemi truck engines would respond to the same mods, and even put out more power. They have a better (active) intake manifold that won't fit under the hood of the Challenger.
The place I had it done, in Port Byron Illinois at Illinois Dyno Tune, said they dynoed a twin turbo Dodge Cummins that made over 2000 ft-lb of torque. The dyno is a pretty cool process and worth getting done. It cost $140 for a total of 4 pulls. I really didn't pick up any more power or torque from what came with the power tuner, but at certain RPM's I gained more torque and horsepower. This was done by tweaking the timing advance and fuel curves. The car was running rich, so they gained power by leaning it out. They run a sniffer in the exhaust, so they know what the air fuel ratio is at all times and don't lean it our to much.
The newer late model hemi truck engines would respond to the same mods, and even put out more power. They have a better (active) intake manifold that won't fit under the hood of the Challenger.
The place I had it done, in Port Byron Illinois at Illinois Dyno Tune, said they dynoed a twin turbo Dodge Cummins that made over 2000 ft-lb of torque. The dyno is a pretty cool process and worth getting done. It cost $140 for a total of 4 pulls. I really didn't pick up any more power or torque from what came with the power tuner, but at certain RPM's I gained more torque and horsepower. This was done by tweaking the timing advance and fuel curves. The car was running rich, so they gained power by leaning it out. They run a sniffer in the exhaust, so they know what the air fuel ratio is at all times and don't lean it our to much.
Last edited:
