I would like to start a discussion on what is the minimum amount of work required when you change motor (and/or intake manifold) displacement

Displacement (MAF -> load calc)?
VE and/or cam overlap (various fueling issues/VVT)?
Compression ratio (optimal timing)?
Intake mani volume (air mass delay/inertia)?

Anybody have experience with tuning a bigger than stock displacement motor?

What I dont get is how intake volume and engine displacement is combined.

shouldn't there be somewhere to put engine displacement separate from intake manifold volume for purposes of converting maf->load?

shouldn't that calc be independent of intake volume?

stock kumsrl is .001072 kg/hr / rpm %:
    
So multiply by 100 for %, and 2 for 2 rotations per cylinder cycle and you get:
   
(((.001072 (kg / hr)) * 1 min) / (1.29 (kg / (m^3)))) * 100 * 2 = 2.77002584 liters

HURPMH. Why am I off

anyway, lets go the other way:

(((2.7 liters * (1.29 * (kg / (m^3)))) * 60) / 100) / 2 = 0.0010449 kilograms/hr / rpm %
   
(((3.0 liters * (1.29 * (kg / (m^3)))) * 60) / 100) / 2 = 0.001161 kilograms/hr / rpm %

or, maybe

.001072 * 3.0/2.7 = 0.001191

(I love how I post, I sleep, you post, and post, and post, I wake, and it's like you never sleep!) At least your posts inform us of your thought process.

The only conclusion that I ever came to was BGSRM>KISRM. And of course KRKTE. I had a quick and rough look at KUMSRL. Looks interesting/worth diving into, but I'm back off to work.

FWIW, I know a 2.7 engine is a 2.671 liter engine in reality, so that may throw your math off some.

KISRM has input for both intake volume and bore.

Any advance in this? I'm also interested since I'm about to build 3.0 liter motor, and maybe some day I know how to make my own tune

paging silentbob to the front desk

I'm thinking that if you are not maxing MAF, you can underscale load via KUMSRL