Need porting/matching advice...
Race Director
Joined: Mar 2001
Posts: 11,322
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From: Living in the Hartland
Re: Need porting/matching advice... (blunsford)
The "Book" method is to take machinists dye and stain the entire surface. Then lay the gasket on and use an awl to scratch a line in the dye using the intake gasket as a template.
Everything I've read says it makes little difference. I wouldn't pay anyone to do it but as long as you have the tools it certainly won't hurt. I'd at least check them to see if any are way off. I've seen some that were way off and I'd think it would make some difference. If it made no difference at all the pros wouldn't do it.
Everything I've read says it makes little difference. I wouldn't pay anyone to do it but as long as you have the tools it certainly won't hurt. I'd at least check them to see if any are way off. I've seen some that were way off and I'd think it would make some difference. If it made no difference at all the pros wouldn't do it.
All and all still a good reference.
Team Owner
Joined: May 2001
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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
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St. Jude Donor '06-'10, '13
Re: Need porting/matching advice... (Fevre)
A dremel won't cut it - literally.
Get an air powered die grinder, abrasive rolls, carbide cutting tips, some safety glasses and some earplugs.
Have fun.
Get an air powered die grinder, abrasive rolls, carbide cutting tips, some safety glasses and some earplugs.
Have fun.
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Re: Need porting/matching advice... (BSeery)
a dremel can cut it , if there isn't a lot that needs to be hogged out, a inch into
the ports should be fine, if there is a bunch of cutting, you need to step up in
tools if no air many companys sell elec. grinders. if you aren't used to air (die) grinders they can get away from you at the wrong time, i still will use
a elec. on the fine work, slower but safer. i've got more time than money
the ports should be fine, if there is a bunch of cutting, you need to step up in
tools if no air many companys sell elec. grinders. if you aren't used to air (die) grinders they can get away from you at the wrong time, i still will use
a elec. on the fine work, slower but safer. i've got more time than money
Le Mans Master
Joined: Aug 2000
Posts: 6,362
Likes: 7
From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Re: Need porting/matching advice... (GrandSportC3)
When you get a carbide cutter make sure it is for aluminum rather than steel/cast iron. Al. cutters have larger flutes so it doesn't load up as you cut. If you use a cutter for steel it will need to be constantly cleaned (as in every 60 seconds of use) and the al actually jams in the flutes and is very dificult to get out. A good tool supply store should have what you need. You probably want a cylinder shaped cutter.
Oh yea, practice on something else first. Get a feel for how the cutter works. It's easy to make a big mistake if you don't know what to expect.
I love the look of Victor Jr's. Is it going to fit under your hood? What intake are you running now?
Oh yea, practice on something else first. Get a feel for how the cutter works. It's easy to make a big mistake if you don't know what to expect.
I love the look of Victor Jr's. Is it going to fit under your hood? What intake are you running now?
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
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From: Lakeland, FL
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St. Jude Donor '03, '06, '17
Re: Need porting/matching advice... (burners)
When you get a carbide cutter make sure it is for aluminum rather than steel/cast iron. Al. cutters have larger flutes so it doesn't load up as you cut. If you use a cutter for steel it will need to be constantly cleaned (as in every 60 seconds of use) and the al actually jams in the flutes and is very dificult to get out. A good tool supply store should have what you need. You probably want a cylinder shaped cutter.
Oh yea, practice on something else first. Get a feel for how the cutter works. It's easy to make a big mistake if you don't know what to expect.
I love the look of Victor Jr's. Is it going to fit under your hood? What intake are you running now?
Oh yea, practice on something else first. Get a feel for how the cutter works. It's easy to make a big mistake if you don't know what to expect.
I love the look of Victor Jr's. Is it going to fit under your hood? What intake are you running now?
Racer
Joined: Feb 2003
Posts: 316
Likes: 1
From: The Woodlands TX
Re: Need porting/matching advice... (burners)
Speaking of all this porting. Can someone explain the difference between AL heads that have been CNCed?? Like a boner sometime ago I purchased a set........ really didn't know what it meant so like usual thinking.. cost more.. has to be better!! :smash:
Thread Starter
Team Owner
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From: Lakeland, FL
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St. Jude Donor '03, '06, '17
Re: Need porting/matching advice... (GrandSportC3)
I wonder if I can just match them using files???
Aluminum is very soft...
[Modified by GrandSportC3, 11:51 AM 11/26/2003]
Aluminum is very soft...
[Modified by GrandSportC3, 11:51 AM 11/26/2003]
Le Mans Master
Joined: Aug 2000
Posts: 6,362
Likes: 7
From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Re: Need porting/matching advice... (GrandSportC3)
Cool. Wow, the Tarantula is an old timer but a good one.
You could do it with files but since you already have a dremel you may as well use that. If you are concerned about causing damage then just use stones. They grind slowy so you can't get into much trouble with them.
[Modified by burners, 11:03 AM 11/26/2003]
You could do it with files but since you already have a dremel you may as well use that. If you are concerned about causing damage then just use stones. They grind slowy so you can't get into much trouble with them.
[Modified by burners, 11:03 AM 11/26/2003]
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Team Owner
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Need porting/matching advice... (comp)
Oliver - what's the verdict are the VJ's 1206 gasket size? I still say the Makita die grinder sold at hardware stores is the thing to use. It just spits metal with carbide tips. it's only down side is it's gyroscopic effect when the motor is spinning 25,000 rpm. it's also potentially dangerous when it does a bounce back. It's hard to find large flute aluminum bits. So for non aluminum I just spray the bits with silicone spray before and during use and a wire brush cleans the flutes out.
Stones aren't any good - They also fill up with aluminum or on cast iron they just get eaten away super fast.
I have an air grinder, but with the hose attached they seem bulky and hard to use.
Stones aren't any good - They also fill up with aluminum or on cast iron they just get eaten away super fast.
I have an air grinder, but with the hose attached they seem bulky and hard to use.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Need porting/matching advice... (burners)
Cool. Wow, the Tarantula is an old timer but a good one.
You could do it with files but since you already have a dremel you may as well use that. If you are concerned about causing damage then just use stones. They grind slowy so you can't get into much trouble with them.
You could do it with files but since you already have a dremel you may as well use that. If you are concerned about causing damage then just use stones. They grind slowy so you can't get into much trouble with them.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Need porting/matching advice... (gkull)
Oliver - what's the verdict are the VJ's 1206 gasket size? I still say the Makita die grinder sold at hardware stores is the thing to use. It just spits metal with carbide tips. it's only down side is it's gyroscopic effect when the motor is spinning 25,000 rpm. it's also potentially dangerous when it does a bounce back. It's hard to find large flute aluminum bits. So for non aluminum I just spray the bits with silicone spray before and during use and a wire brush cleans the flutes out.
Stones aren't any good - They also fill up with aluminum or on cast iron they just get eaten away super fast.
I have an air grinder, but with the hose attached they seem bulky and hard to use.
Stones aren't any good - They also fill up with aluminum or on cast iron they just get eaten away super fast.
I have an air grinder, but with the hose attached they seem bulky and hard to use.
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Re: Need porting/matching advice... (GrandSportC3)
slow and steady, i would get the open tooth cutters for the dremel
i've used Pan on the cutters to lessen the clogging, (lemon) no joke, poor man poor ways
i've used Pan on the cutters to lessen the clogging, (lemon) no joke, poor man poor ways
