NA Peak torque
 

What length of intake runners are the NA NiTROUS guys running on Subarus? What rpm are they tuning max torque.

For one, there is very few people running nitrous in the forum. Second, I don't believe there is any aftermarket intake manifolds to run custom intake runner lenghts.

:iono: I'm running a modified 787B manifold with variable length intake runners.

Dude, you should upgrade. I have the 797X. Not only does the length vary, but width as well. I hear the next one will actually expand and contract the head passages too!

Maybe a year down the line someone can answer this question, but as of now I have yet to see aftermarket IMs. Going to be a year and still waiting on cams and valve train parts.

Ferrea has valve train parts out now. You can get them anywhere from $900-1400 depending on who you purchase them through.

aftermarket? just fab some, its not hard to calculate rpms you want the motor to develop power and just tune the runner length to 0.8 the speed of sound. Off the shelf tuning forums this place is, eh?

I have the obx intake manifold. With inconnel runners