Chaos! Project phoenix

[JET]

Sounds like fun! Did you do any figuring of the helmholtz resonance when you extended the plenum on the Forrester?

[spoolin d dub]

Originally Posted by JET

Sounds like fun! Did you do any figuring of the helmholtz resonance when you extended the plenum on the Forrester?

Actually there was a phenolic plenum spacer that Forrester made for the manifold a few years ago. He did all the testing. Think it made like 35whp more at same boost on a 35r with almost no low end loss etc. Mine just had the spacer cnc'd to exact same specs and welded on.