tooter's manifold adventure...

[Flipper_1938]

Originally Posted by tooter

Only the round half goes into the round hole and is inside the plenum...



The square half sits on top of the hole on the outside of the plenum like the head of a rivet so as to hold the 1ZZ throttle body. The corners overhang on purpose so that it doesn't just fall through all the way. This will make welding really easy as it will rest exactly where it's supposed to be.

Actually I was wondering about the "boob" to factory square intake flange.

[tooter]

Originally Posted by Flipper_1938

Actually I was wondering about the "boob" to factory square intake flange.

I'm getting a round piece of aluminum plate and cutting a rounded square hole in it. The diameter of the plate will be slightly larger than the hemisphere so that it can sit on top of it, while the square hole will be slightly smaller than the factory runner retention flange to allow the plate to set on top of it.



After the welding, everything gets stainless steel bead blasted for a clean consistent uniform finish.