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Tractor Pulling Discussion Forum

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

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Author  [Modern View]

10-10-2013 13:47:44

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Plunge cut capable end mill. Then cartridge rolls

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10-10-2013 15:43:51

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 Re: porting tools........ in reply to mlpankey, 10-10-2013 13:47:44  
Quoting Removed, click Modern View to see

What's a cartridge roll?

How can a end mill make a port flow?

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10-11-2013 04:37:36

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 Re: porting tools........ in reply to foghorn, 10-10-2013 15:43:51  
Fogorn thats a good south alabama name . Lim has a good tn mountain name and is known for his math skills in figuring 5ths quarts pints and gallons . Lim decides he wants to hot rod a tractor he has been reading the hotrod magazines while in the outhouse . He remembers the test depression for a flow bench is 28 inches of water. He gets him some wire and makes a crude go no go gauge and realises the tractors port is smaller than the valve size of 1.5 inches . He remebers a neighbor saying he has a 1.5 inch drill bit so its lunch time. Lim goes into kitchen and while eating a piece of chocalate pie he starts scratching out some figures on a note pad . He takes the radius of 1.5 being .750 times it by itself again and gets .5625 times that by pie 3.14 while wiping the chocalte pie from his lips and gets 1.766 . Lim then takes the square root of 28 inches of water and gets 5.291 takes that times 4005 and gets a velocity of 21190.45. he takes his 1.766 and divides it by 144 for a square feet of .0122. he times it by the velocity of 21190.45 and gets 258.523 cfm . So he says hmmm if i get my port sixe to my valve size i can have a maximum flow of 258 cfm . He then goes to neighbor and ask to borrow drill bit the neighbor say shure but tells him its dull. Lim knows he can sharpen it on a bench grinder and can check the angle to maintain it by putting two nut flats together and the angle the bottom two flats give is close to the drill bit angle. So he tells the guy he will sharpen it for his use. Lim goes and gets it hung in the port and it breaks his fore arm so now the head will have to wait six weeks . During tha six weeks he stops on the mountain by a machine shop and they tell him a 1.5 end mill would be alot safer . Lim replies them are expensive ,the machinist replies probably not as expensive as the emergency room visit . Lim laughs and awiats healing up.

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baldwin racing

10-13-2013 16:14:34

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 Re: porting tools........ in reply to mlpankey, 10-11-2013 04:37:36  
I laugh at that story..... I could see a ton of people up here doing just that.....lmao

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10-20-2013 16:21:15

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 Re: porting tools........ in reply to baldwin racing, 10-13-2013 16:14:34  
Quoting Removed, click Modern View to see Thanks guys . The name was changed but the drill bit roughing in a port is actually a true story . A guy who is known in this area for his ford 2200 dirt track engines does use a drill bit. he hasn't been hurt like the fellow in the story but has said a end mill is to expensive.It just added some color to topic. Dblair shop is staying busy not covered up but busy got to get that 440 inch allis done and to its owner. Yeap Ron your absolutely on track . The torque function comes from increasing cubic inches hp comes from improving airflow but wait increasing bore does both to a extent. see you guys when another funny shop story comes

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Gary Baker

10-13-2013 07:51:21

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 Re: porting tools........ in reply to mlpankey, 10-11-2013 04:37:36  
Mlpankey, you missed your calling. You are a comedian. I have'nt laughed that hard in a long time. Excellent!

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10-11-2013 19:31:05

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 Re: porting tools........ in reply to mlpankey, 10-11-2013 04:37:36  
stop it , stop it , I can't take any more while I'm rolling in the floor , just stop .

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10-12-2013 07:57:13

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 Re: porting tools........ in reply to dblair, 10-11-2013 19:31:05  
A friend of ours d blair. Sent a txt to me and said quote a post full of good info from figuring cfm to sharpening drill bits with entertainment that held ones attention to the end. I wonxer if he is trying to take siskle or ebberts

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10-12-2013 13:47:16

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 Re: porting tools........ in reply to mlpankey, 10-12-2013 07:57:13  
well Mitch you had me rolling in the floor, I loved it . every bit great information . how's the shop coming ?

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10-10-2013 18:12:06

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 Re: porting tools........ in reply to foghorn, 10-10-2013 15:43:51  
FPM x foot squared = CFM

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