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Tractor Pulling Discussion Forum

Re: porting tools........

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Author  [Modern View]

10-10-2013 06:23:22

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Various sizes and shapes of Carbide rotary cutters get the major work done. I use the abrasive rolls, to clean up the rest. You can use longer arbors to reach farther with the abrasive rolls. A good drill will get it done, or you can use an air-powered Die-Grinder (or your flex-drive).. A GOOD performance Valve job will help as much as anything..after the porting and polishing is done).. More exotic ways are sometimes used, like an abrasive is pumped through the ports (extruded), to smooth and enlarge the passages, etc.. Ron..

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baldwin racing

10-10-2013 08:15:13

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 Re: porting tools........ in reply to BushogPapa, 10-10-2013 06:23:22  
I do port now. ben in the drag racing atvs for years build motors and so on.....just wondered what everyone uses for tooling....I know bits and polishing.....learning never ends....I always messing with stuff and learning new ideas... kelly

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10-10-2013 17:49:18

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 Re: porting tools........ in reply to baldwin racing, 10-10-2013 08:15:13  
cylinder head abrasives. Get you a few long arbor rocks, some sand rolls & a good long arbor carbide burr. I also recommend an electric die grinder, preferably a Suhner brand w/ variable speed.

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baldwin racing

10-12-2013 08:54:19

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 Re: porting tools........ in reply to Cody, 10-10-2013 17:49:18  
cody, thank's for the info. a good web page..... I always like finding a good place that sells all the dif porting and polishing bits instead of buying here and know what I mean....

some got off topic but I wanted to here what tools you use for porting.Its a learning curve that never ends.....there always ways to make power in porting all angles pay a toll smooth exhaust for flow, rougher surface on intake to help atomize fuel and air, everything makes things flow different and help or loose hp....

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10-12-2013 19:16:14

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 Re: porting tools........ in reply to baldwin racing, 10-12-2013 08:54:19  
Boy I've seen just about everything come thru the shop. People get carried away & hog out a head then put a small manifold on it or put a huge valve over a small port. Bigger isn't alway better. A good smooth flow that isn't in danger of hitting water is what I usually go for.

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baldwin racing

10-13-2013 15:44:09

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 Re: porting tools........ in reply to Cody, 10-12-2013 19:16:14  
yes sir....;)


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