blacksr

love all the knowledge being dropped in here

blackmags91

Numbers are in for now.
365hp on e54 at 19psi. And yes I'm sure just adding a cam would bring it up around 400.

Kingtal0n

depends on RPM.

Power is not just one number and neither is torque.

The cam opens the top end 5000 6000 7000 8000rpm

As long as the turbo has room to go, the power will climb as rpm climbs if the engine can breath properly.


It would make close to 420rwhp at 7000rpm with 19psi manifold pressure
but it will also make 450 or 460rwhp at 8000rpm with the same boost

blackmags91

I realize that power is a function of engine speed and torque.
I guess I'll rephrase my previous post for you:

Peak power was 365 at 19psi on e54, with an ignition cut at 7,100rpm. I'm sure that only adding an aftermarket cam set would bring peak horsepower up around 400 without changing fuel type, manifold pressure, or rev limit.

Kingtal0n

And I'm saying it should be even higher. I've made 400 with 18psi on 93 alone plenty of times.

random large turbine redtop example
I think this was actually 17psi at the intake

Basically, 15-18psi should give you 300ft*lbs of torque from an 2L with roughly 8.5:1 compression
With just 9 or 10* of timing on 93 octane.
So with E85 it should produce a bit more torque, say 320 to 330 with a bit more timing that 93 cannot access.
By 7000rpm 320-330ft*lbs should be around (330*7000/(33,000/2*pi) = 440rwhp on E85 (a gain of 30-40whp is typical with 15-18psi of boost at 2L)

That goes no matter what manufacturer
Just like 0psi of boost should put down about half of that or ~150ft*lbs

Wheres the graph? Always post graphs. It needs
1. dynojet
2. smoothing = 0
3. Air Fuel curve

If you get those 3 things or at the very least a dynojet curve its easy to compare across engines or even platforms.

__________________
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