My 2005 3.0R does the same exact thing at 3000 RPM. I believe this is the Active Valve Control System at work (or maybe it's AVLS). But I sure wish it had another 40 ft.lb. of torque for a nicer take off from a dead stop.
What’s Inside: Active Valve Control System
Thanks so we can assume it is normal
Multi-point or multi-port just means more than one injector. Typically it is one per cylinder, or one per cylinder plus one extra for cold starts. One per cylinder is considered normal these days.
In the early days of FI, a single large injector was shared by all cylinders. Also known as throttle body injection- TBI. GM stuck with that system a lot longer than others but they have since caught up.
The hot new thing is gasoline direct injection -GDI. this is similar to multipoint, but the injectors now spray directly into the combustion chamber rather than into the port space behind the intake valve. It brings gains in power and MPG, but several manufacturers have had real trouble with fouled intake valves now that they aren't being constantly washed in a stream of gasoline droplets. Subaru is just taking their baby steps with GDI.
Sport mode does change the throttle angle mapping, but I don't think it changes the actual fuel map. It just creates a nonlinear response so that the first half of the gas pedal opens the throttle much faster than normal.
My best shot in the dark based in available info is that the engine is doing its thing, and something is up in the Trans. Have you looked at fluid level and condition? I wonder if the torque converter lockup clutch is the kick in the pants you are feeling...
Very well explained thanks.
We must ask admin to give us a thank you function
0-3,000 rpm is "normal"
3,000+ rpm "firm shove that lasts til redline"
that sounds like a great running engine.
can you clarify where it seems lacking? i don't see the question or issue.
I just wanted to know if this curve of power delivery is normal.
I am used to engines tuned for torque low down.
My first car was an old turbo diesel, it had the ability to launch with all its torque in one big lump then it was dead at 3000rpm (those old diesels are low revving)
My recent V8 was tuned for low down torque, proper off road motor. Also lunge but it never really hit the power curve. At 4000rpm it would run out of ideas as well.
With the H6 it is the other way around. slower to get of the line, thengoes like a rocket. I am loving it. I am also missing low down torque with this motor. But that would be like having a problem with Cindy Crawford's face because of that little black spot