94hondacivicvtec

hey what the is the best bit to use when port matching an intake manifold. i used the regular stone bit but to just get half it done i ate up 5 bits. wtf?

94hondacivicvtec

any one ever portmatch a intake manifold?

Luserkid

Different people use different bits. But reason you might be going through bits so fast is because your not using the correct type of oil to lubricate your bits theyll crap out quick.

solid1

A dremel will do just fine. A die grinder with long shafted grinding/sanding bits is ideal.

Or swap the whole thing out for this unit out on e-bay w/no reserve:
http://cgi.ebay.com/ebaymotors...&rd=1

94hondacivicvtec

ok that makes sense ive been useing motor oil. i was thinking of useing cutting oil but motor oil was on hand so i used that. is this the bst type of oil to use (cuting oil)

Luserkid

I would think WD40 is better then engine oil (depending on the weight). My snap on guy gave me this cutting oil he had on hand and since ive been using it i havent had to buy any new drill bits for a good 2 or 3 months now. And i drill almost every day.

94hondacivicvtec

wow.. i totaly over looked wd-40. i was useing 5-20w motor oil and eating up bits like nothing. i dont think i was useing as mutch as i should have. thanks

solid1

How are you eating up bits when you are cutting into aluminum? I'd understand if they were cast iron... I usualy use sand paper drums to port aluminum, as any other cutting bits would take too much aluminum off too quickly. Maybe you are porting out too much material? Perhaps the bits are clogged rendering them in effective. If so you only got to clean it up. I have never required oil to port aluminum components.