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[attachment=25875:attachment]
[attachment=25873:attachment] [attachment=25874:attachment] It is fun but what a mess. The dust goes everywhere. I look like a coal miner. What do you think, large enough? Thanks CW |
I have no idea where the pic of the pipe came from?????
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That pipe looks like it's from a homemade.. uh maybe I've said too much already.
The port looks nice. |
the port runner pictures weren't all that clear, but if the work on the port itself is any indication then i'd say you did just fine. it looks great.
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https://www.nopistons.com/forums/pub...1047683561.gif WTF? i didn't attach the picture of that FD ...
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that pipe was from the old flame thrower thread....
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Originally Posted by diabolical1' date='Dec 13 2004, 10:21 PM
the port runner pictures weren't all that clear, but if the work on the port itself is any indication then i'd say you did just fine. it looks great.
Thanks guys, I took several pics and they all came out like that. I wasn't sure about the size of the port. I made the plexi glas modell and moved a rotor around. Having the corner seal (3/4) and side seal (leading edge) supported and not breaking through into the water jacket that is as big as one can go, I think anyway. CW |
CW, that looks really nice and clean. could you tell us what bits and other tools you used?
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Hey, thats my flamethrower! The hell? https://www.nopistons.com/forums/pub...1047683561.gif
Nice ports. |
Originally Posted by Old Splatterhand' date='Dec 14 2004, 08:31 AM
CW, that looks really nice and clean. could you tell us what bits and other tools you used?
I used a cone shaped carbite bit I bought at tool king, then grind stones and then sand paper rolls. All air tools based. After that I polished with steel wool in a power drill. I know most porters don't like the smooth surface but I just like to try it and see. I think there are to many bends in our intakes, so I like to smooth everything as much as possible and keep velocity high. I bought some tools from Racing beat. They have a great selection and explain what the tools are for. You might pay a little extra but you get everything there and the tools work great. CW |
[quote name='z8cw' date='Dec 12 2004, 02:41 PM']
[attachment=25875:attachment] [attachment=25873:attachment] [attachment=25874:attachment] It is fun but what a mess. The dust goes everywhere. I look like a coal miner. What do you think, large enough? Thanks CW I square off the upper/outer corner of the port just a bit more, and then radius the closing line and polish it. When you move the outer edge of the port you get earlier opening, and you loose support for the trailing end of the side seal. As time goes by the end of the seal gets pinched in the corner radius and gets rounded off a bit. If you take away that curve and radius and polish the face of the closing line, the end of the seal cannot get pinched. It probably only happens at cranking speeds, but it happens. Lynn E. Hanover |
Lynn,
thank you for taking the time and posting those pics with the explanation. that's great, it really makes it easier to understand things. |
Originally Posted by Lynn E. Hanover' date='Dec 14 2004, 08:46 PM
[quote name='z8cw' date='Dec 12 2004, 02:41 PM'] [attachment=25875:attachment] [attachment=25873:attachment] [attachment=25874:attachment] It is fun but what a mess. The dust goes everywhere. I look like a coal miner. What do you think, large enough? Thanks CW I square off the upper/outer corner of the port just a bit more, and then radius the closing line and polish it. When you move the outer edge of the port you get earlier opening, and you loose support for the trailing end of the side seal. As time goes by the end of the seal gets pinched in the corner radius and gets rounded off a bit. If you take away that curve and radius and polish the face of the closing line, the end of the seal cannot get pinched. It probably only happens at cranking speeds, but it happens. Lynn E. Hanover Thanks so much, will do. I am just wondering about the bevelling. The last 1/2inch of the port looks like a gigantic bevel. I was trying to get the latest possible closing without breaking through to the water jacket, so I ended up with a hill kind of shape. I tried to lighten up the pic a bit but you can't really see it. [attachment=26051:attachment] |
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