Should I sand this down???

[Pootiestang]

Hey guys another quick question. I am gonna port my own upper plenum since I have two laying around now and I was just wondering if this is a fabrication mistake of does it serve a purpose? Thanks

PS: its the notch on the bottom of the pic.

 

[Sleepy1]

I can't really see anything in the pic...it is too dark. BTW is that the stock one or the aftermarket? I was thinking about polishing my C&L.

 

[Pootiestang]

Its factory, I just got the piece used on ebay.com. Its a factory plenum off a 2000 Saleen, it came with the new manifold. There is just this notch sticking out, ill check on my car and see if its there on mine too. I know its bad pic but its my camera phone.

 

[decoy562]

It couldn't hurt.

 

[Dallasgt01]

hell yeah i would sand everything in there down to where it is like a 1mm - 2mm thickness of a wall hell you have another one so why not... see if you have a hp increase

 

[Pootiestang]

hell yeah i would sand everything in there down to where it is like a 1mm - 2mm thickness of a wall hell you have another one so why not... see if you have a hp increase

whats a good grit for metal?

 

[Dallasgt01]

600 till you get to 2000 wet sanding it... that will port then polish it by the time you are done....