Best intake porting kit?
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Best intake porting kit?
I cant imagine taking out a lot of metal with sandpaper barrell roles...
what/where is the best kit, if there is one, for porting ?
I may have to buy some long arbor carbide tools to get inside this thing.
what/where is the best kit, if there is one, for porting ?
I may have to buy some long arbor carbide tools to get inside this thing.
Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
Call these guys or get their catalog. I get all my porting supplies from them.
http://www.goodson.com/
http://www.goodson.com/
Safety Car
Joined: Feb 1999
Posts: 4,724
Likes: 16
From: Little Elm TX
Not sure what is out their nowadays, but I have used a Standard Abrasives kit years ago..... had everything you needed and the cartridges they provided did what I was trying to do.... but I don't know if they are still alive or not.
In fact, I think I still have it somewhere..... not sure. If I find it, you can have what you need out of it.... I won't be using them anytime too soon.
In fact, I think I still have it somewhere..... not sure. If I find it, you can have what you need out of it.... I won't be using them anytime too soon.
Race Director
Joined: Jun 2004
Posts: 13,953
Likes: 706
From: WI
I bought a good quality porting bit when I ported my intake. It got pretty much used up. I also used some stone and sanding bits but those wear out fast. I can't remember where I ordered the bit from sorry. It was fairly expensive but cut real nice! I'll need to get another one so I'll post what I find later.
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Instructor
Joined: Jan 2009
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Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
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From: Indianapolis IN
found these at summit
Porting and Polishing Set, Deburr Kit, Carbide, 6 in. Bits, 1/4 in. Shank, Set of 3
The right tools you need to do porting.
Our Summit® 3-piece ferrous deburr kits are ideal for porting manifolds and cylinder heads, or for deburring and smoothing any casting. They include three carbide cutter bits for iron:
* One 3/8 in. diameter x 5/8 in. long
* One 3/8 in. diameter x 3/4 in. long
* One 1/4 in. diameter x 1/2 in. long
Porting and Polishing Set, Deburr Kit, Carbide, 6 in. Bits, 1/4 in. Shank, Set of 3
The right tools you need to do porting.
Our Summit® 3-piece ferrous deburr kits are ideal for porting manifolds and cylinder heads, or for deburring and smoothing any casting. They include three carbide cutter bits for iron:
* One 3/8 in. diameter x 5/8 in. long
* One 3/8 in. diameter x 3/4 in. long
* One 1/4 in. diameter x 1/2 in. long
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
I bought a good quality porting bit when I ported my intake. It got pretty much used up. I also used some stone and sanding bits but those wear out fast. I can't remember where I ordered the bit from sorry. It was fairly expensive but cut real nice! I'll need to get another one so I'll post what I find later.
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
At Harbor Freight, you can buy a big bag of all shapes of the sandpaper rolls cheap, like 50 in a bag,, so I want to Hog and shape up top with the carbide and then blend it in close to the head / intake interface.
Gonna try to improve the HSR flow some
Gonna try to improve the HSR flow some
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Team Owner
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Co-winner 2020 C4 of the Year - Modified
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St. Jude Donor '09 thru '20
Elliot Portworks told me that he takes off about 3 pounds off the LT intakes.
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
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From: Indianapolis IN
More weaponry
Essential for automotive grinding. Long shaft reaches cramped areas. 1/4'' collet accepts most die grinder accessories.
* Lightweight and maneuverable
* All ball bearing construction
* Spare brushes
Motor: 110V, 60 Hz, 4.3 amps, single phase; Maximum speed: 25,000 RPM; Wheel diameter: 1-1/2'' maximum; Overall length : 14-1/4''
Weight: 4 lbs.
Essential for automotive grinding. Long shaft reaches cramped areas. 1/4'' collet accepts most die grinder accessories.
* Lightweight and maneuverable
* All ball bearing construction
* Spare brushes
Motor: 110V, 60 Hz, 4.3 amps, single phase; Maximum speed: 25,000 RPM; Wheel diameter: 1-1/2'' maximum; Overall length : 14-1/4''
Weight: 4 lbs.
Le Mans Master
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
Yeah, Orrcz___ something posted on here and thirdgen about porting his intake. He blended the top as close to the "cross" as he could and tried to widen the tops so it still tapered down. Try to search for him on both forums, I believe he had pictures of it up there.
As for flow, if it really flows 275cfm and you really need an intake that flows more than your heads (I've heard 6-10-14% more, which for 280cfm heads is 296, 308, and 319 cfm respectively to maximize your total top end efficiency.)
As for flow, if it really flows 275cfm and you really need an intake that flows more than your heads (I've heard 6-10-14% more, which for 280cfm heads is 296, 308, and 319 cfm respectively to maximize your total top end efficiency.)
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Yeah, Orrcz___ something posted on here and thirdgen about porting his intake. He blended the top as close to the "cross" as he could and tried to widen the tops so it still tapered down. Try to search for him on both forums, I believe he had pictures of it up there.
As for flow, if it really flows 275cfm and you really need an intake that flows more than your heads (I've heard 6-10-14% more, which for 280cfm heads is 296, 308, and 319 cfm respectively to maximize your total top end efficiency.)
As for flow, if it really flows 275cfm and you really need an intake that flows more than your heads (I've heard 6-10-14% more, which for 280cfm heads is 296, 308, and 319 cfm respectively to maximize your total top end efficiency.)
It is already ported to a 1206 but I will have to see how far up the tract it goes. Should be fun!
Pro
Joined: Sep 2007
Posts: 545
Likes: 2
From: st albert alberta
,ask me how i know 
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
You need a quality die grinder like a makita, i find the cheaper ones heat up way to fast and burn out .I only use the sandpaper rolls on aluminum and i have always got excellent results,I'm not a pro so when i use carbide cutters i always get a wavy finish.IMO the most important things you need are good eye protection and a breathing mask ,believe me you will be blowing this black crap and aluminum flakes out your nose for a day or two.I once got a aluminum sliver stuck in my eye ball when i was porting and had to go to the er to remove it .I spray wd40 ever few minutes when porting it keeps the sanding rolls from clogging up and keeps some of the dust down.Like i said i am not a pro but this method has always gave me excellent results.Oh ya here's another tip its not a good idea to port anything in your living room,ask me how i know
,ask me how i know I have used at least 1000 barrel roles over the years but cant imagine taking 1/4, or even 1/8 of material out with them, but it has been a while.
And a tip for you as well , the family dishwasher is a great aluminum parts cleaner, just don't let the wife catch you...
Found this too, reduces the cost of expensive long shank Carbide Burs
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
I had the intake port matched by Mike at www.cfmperformance.com and he did a great job, more than I realized until I looked at it closer this morning.
I have only seen one flow sheet and it showed 284crfm going into the plenum and out the runner, not bad.
This picture is from the guy in Florida that was part of the original effort a couple years ago to mass produce the plenums.
Race Director
Joined: Jun 2004
Posts: 13,953
Likes: 706
From: WI
I think this is the one I used: # 43035A36 mcmaster.com
1/4" Shank, Single Cut, Carbide Bur, Cylindrical-Radius End, 1/2" Head Dia, 1" Length of Cut / $22.47
1/4" shank for die grinder, carbide cutter line. I liked the end tip being rounded for porting tight spots but it will wear out quickly as the cutting edge is thin there. The one inch length gives you plenty of flat cutting surface.
I used a $20 air die grinder which worked well, you need a decent air compressor though. Electric would have been nicer but they cost more and don't last as long.
I got by with just that one bit and wore it out on a single intake porting. I also used some stones and sanding rolls. It's very messy and takes a long time!
1/4" Shank, Single Cut, Carbide Bur, Cylindrical-Radius End, 1/2" Head Dia, 1" Length of Cut / $22.47
1/4" shank for die grinder, carbide cutter line. I liked the end tip being rounded for porting tight spots but it will wear out quickly as the cutting edge is thin there. The one inch length gives you plenty of flat cutting surface.
I used a $20 air die grinder which worked well, you need a decent air compressor though. Electric would have been nicer but they cost more and don't last as long.
I got by with just that one bit and wore it out on a single intake porting. I also used some stones and sanding rolls. It's very messy and takes a long time!
