How do operating ranges on intakes work?

[94svtturbo]

Im curious as to if anyone know how the "operating range" of intake manifolds are determined? and what about a certain intake makes it better for certain RPMs. I tried googling this but nothing really came up. Im hoping someone here know exactly how it works. and why one thing is better for one RPM but not another.

Thanks

 

[CC'S95GT]

I don't know for sure But I think it has something to do with runner length.
Shorter runner for more low end torque. Longer runner for more top end.
then again I may have that backwards.

 

[modo]

the runner cross section, length, and plenum volume

 

[coupe5ohh]

I don't know for sure But I think it has something to do with runner length.
Shorter runner for more low end torque. Longer runner for more top end.
then again I may have that backwards.

yea im pretty sure u have it backwads lol

 

[94svtturbo]

the runner cross section, length, and plenum volume

I was hoping you'd see this modo. Do you know why each one of those properties affect the operating range in a certain way? or maybe have a link that explains it? Im curious and trying to understand why/how (almost scientifically) each one of those properties changes the operating range.

Thanks for the help guys

 

[BruhBrahBrad]

I don't know for sure But I think it has something to do with runner length.
Shorter runner for more low end torque. Longer runner for more top end.
then again I may have that backwards.

yea im pretty sure u have it backwads lol

edit

 

[modo]

the runner cross section, length, and plenum volume

I was hoping you'd see this modo. Do you know why each one of those properties affect the operating range in a certain way? or maybe have a link that explains it? Im curious and trying to understand why/how (almost scientifically) each one of those properties changes the operating range.

Thanks for the help guys

http://www.cartechbooks.com/cartech/contentfiles/194.pdf

 

[94svtturbo]

thanks a lot modo!! thats what i was looking for!