Interesting. You have any write-ups on this? First I've heard of it, and now you've got my interest. I also assume this doesn't apply to the Gen3's.The 18 up truck manifold has more torque below 4000 RPM and does not lose anything over 6500 RPM. It actually holds power longer than the 15-17 manifold.
Real world testing.
Should have done before & after dyno tuning. Track testing is the next best thing though.Not sure what would happen with the gen3. Probably gain some bottom and lose some top.
The only write up is my first post.
I wish it was spring because I think it will be quicker in the 1/4 mile at the same MPH or slightly better.
Because Ford changed the CMCV motors it needs a tune. Have to change the voltage and range parameters. What surprised me is it pulls to 6900 RPM. Maybe more, I need to do more testing.
The '18+ truck manifold is a completely different animal. Like the difference in Mustang manifolds from Gen2 to Gen3.On the Truck/15-17 manifold it's all downhill after 6500 rpm. That's been proven to nauseum.