Porting and polishing kit....
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From: Douglasville, GA
Porting and polishing kit.... Who makes a good but not super expensive kit for porting and polishing??
Anyone that has done this them selves any input on what you used would be great.
Thanks
Anyone that has done this them selves any input on what you used would be great.
Thanks
What are you PnP-ing??
Heads? - http://www.sa-motorsports.com/do-it-yourself.aspx
TB? - assorted dremel bits listed here...
https://ls1tech.com/forums/generation-iii-external-engine/640507-how-port-tb.html
Heads? - http://www.sa-motorsports.com/do-it-yourself.aspx
TB? - assorted dremel bits listed here...
https://ls1tech.com/forums/generation-iii-external-engine/640507-how-port-tb.html
Heads and TB want different things.
TB I used a drum sander in an electric drill, not much to take
out and all accessible.
Heads I used a dirt cheap electric die grinder ($10 + ship off
eBay) and one long shank tulip burr (ditto). I didn't bother with
polishing in either case but I did hand-finish the TB with 200
and 600 grit inside (outside is stock appearing).
Place called "roughstuff" I saw had nice variety of porting
stuff but point is you need much less than that for a home
porting project.
TB I used a drum sander in an electric drill, not much to take
out and all accessible.
Heads I used a dirt cheap electric die grinder ($10 + ship off
eBay) and one long shank tulip burr (ditto). I didn't bother with
polishing in either case but I did hand-finish the TB with 200
and 600 grit inside (outside is stock appearing).
Place called "roughstuff" I saw had nice variety of porting
stuff but point is you need much less than that for a home
porting project.
The problem is, it isn't how good they look to the eye, its where you grind, and take material away from the runners. If you had access to a flow bench, then I would say give it a shot. Start with one runner, flow it and see what happened. Go to the next, and try something a little different. Probably the single most thing that someone inexperienced with heads can do is get a really good valve job. That will probably be the biggest difference someone can make on a budget. Remember, the more angles the better. You want the valve seat to feel like a smooth radius when done.
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TECH Regular
Joined: Aug 2003
Posts: 483
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From: Texas
Brandon
inst the basic idea to make the port basically straighter and smother to flow more are at a hire velocity right ? cuz the ports are kinda like a little 90 degree pipe and you want it to be as smooth as possible flowing thro it right ?
