REAL 3.5 VS. 5.0 power curves
#131
Senior Member
The only way to get low rpm pulls would be to somehow lock the transmission in gear, which of course can be done on a manual transmission car.
#132
Gone Golfin
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#133
Senior Member
Like someone else said, the dyno will record when its turned on. They put the truck on rollers under the rear wheels. If you are going along at 2000 rpms and step on the gas, what happens? Your truck will downshift, maybe even two gears. There is no way to get low RPM pulls on a dyno like this, only on an engine stand dyno. Those low rpm torque and horsepower numbers don't mean a thing. Yes maybe it was recording numbers but they wouldn't be full throttle numbers until over 3000 rpms.
The only way to get low rpm pulls would be to somehow lock the transmission in gear, which of course can be done on a manual transmission car.
The only way to get low rpm pulls would be to somehow lock the transmission in gear, which of course can be done on a manual transmission car.
#135
This gives you an idea but don't forget air temp, humidity, and barometric pressure play into what a motor is putting out at any given time. Generally, my understanding is you want to run one after the other on the same day. That said, this chart tells the story I would expect. The 3.5EB better for towing and the 5.0 should be better in a drag race. It's a pickup...
#136
This gives you an idea but don't forget air temp, humidity, and barometric pressure play into what a motor is putting out at any given time. Generally, my understanding is you want to run one after the other on the same day. That said, this chart tells the story I would expect. The 3.5EB better for towing and the 5.0 should be better in a drag race. It's a pickup...
I'm gonna get a 5* tow tune for it this Spring. Then it will be even better.
Mike
#137
Senior Member
So why is it that Ford didn't use the 5.0 in their most expensive, best performing, Raptor?
#138
#139
Senior Member
Thread Starter
#140
I don't think anybody said that. I always view performance shop graphs with a good dose of skepticism. They are trying to sell you stuff. EngineerMike just plotted the graphs of the 2018s to show what they look like against each other.