2G Butterfly Intake Cleaning

[Kai Hefner]

Hey!

I finally got around to trying to clean up the butterfly stock intake that’s been sitting around. There is some gunk inside, and I want to freshen up the outside.
I’m worried about normal foaming agents or anything just incase they damage the valve things in the intake. I also guess that it probably can’t be hot tanked without coming apart (which I’m not the biggest fan on doing just yet).
What’s the best way to clean this?

 

[ThunderChild]

I took mine apart and used degreaser and a bottle brush. I don't recommend taking the valves out, as they're a major pain to reassemble correctly.

I made new gaskets out of gasket paper when I reassembled it. Mine worked great for the past several years, but I recently switched back to a ported stock intake manifold for packaging reasons. Made accessing anything on the back of the engine a PITA.
It also pulled a ton of vacuum and even with my catch cans (they're not perfect) it pulled alot of oil through the pcv line. I intend to improve my cans in the near future.

 

[Kai Hefner]

Is there porting to be done on this manifold?

 

[ThunderChild]

Not appreciable porting IMO. Maybe extrude honing the plenum, maybe the runners. It's designed for low end tq, and it does that but I don't feel that it will flow well up top past standard bolt on turbos.

I'd just clean it up and use it, great for the street.