Adding boost port

Spare_Parts

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Nov 29, 2017
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#1
So I want to add a boost port to some cylinders. I have a big drill press and think that would work with some carbide burring tools. Thoughts?
 


FurryOnTheInside

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Sep 23, 2013
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#2
Is the rpm high enough on your big drill press? For cast aluminium I use the slower speeds on my rotary tool, but that's still pretty quick.
 

Frankenstein

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Jun 24, 2016
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#4
I would say it is easier with a dremel, you only cut the port from the top of the intake for a short distance, if you use a drill press you either will cut below the port for no reason or will have to have a strange angle to cut from with a dimensionally incorrect port. It will probably take longer to set up and align the drill (and longer if you have limiters to prevent movement above and below 2 points and a long shank bit that can be positioned next to the cylinder wall without cutting into it) than it would to pick up a dremel and cut the cylinder by hand, I'm talking like 15 seconds tops if you already have the dremel plugged in with a bit in it.
 

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