CNC vs. NON CNC Head porting??
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CNC vs. NON CNC Head porting?? Okay,
can someone tell me what the difference is in the two? Obviously i know that one is done by hand and the other is done on a machine, but you would think that the machine is much more accurate/precise right?
My dad, stubborn as he is, thinks that any CNC job will always be better than a non CNC job. I kinda disagree. But then again, im a novice when it comes to stuff like this and just want to find out info from the guys who know there stuff.
thanks guys
can someone tell me what the difference is in the two? Obviously i know that one is done by hand and the other is done on a machine, but you would think that the machine is much more accurate/precise right?
My dad, stubborn as he is, thinks that any CNC job will always be better than a non CNC job. I kinda disagree. But then again, im a novice when it comes to stuff like this and just want to find out info from the guys who know there stuff.
thanks guys
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Re: CNC vs. NON CNC Head porting?? Interesting.
Terry,
so with all these CNC machines available on the market, each one is written by a different person per say? So basically your getting that persons porting copied onto a piece of software in which translates to the heads being CNC'd.
Terry,
so with all these CNC machines available on the market, each one is written by a different person per say? So basically your getting that persons porting copied onto a piece of software in which translates to the heads being CNC'd.
Re: CNC vs. NON CNC Head porting?? I got to watch the CNC machine do a cylinder head last year at Total Engine Airflow. These are very expensive machines. It takes a lot of work to digitize everything.
Launching!
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From: Valencia, CA
Re: CNC vs. NON CNC Head porting?? There are probably several LS1 programs out there. They may all differ a bit.
If you look at the LS1 market though, the better performing cars tend to run hand ported heads.
The problem with CNC is if you redesign or improve your port, then you have to start over again and digitize and surface plot the head.
If you look at the LS1 market though, the better performing cars tend to run hand ported heads.
The problem with CNC is if you redesign or improve your port, then you have to start over again and digitize and surface plot the head.
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Re: CNC vs. NON CNC Head porting?? I do agree that the majority of people running Ported/Polished Cylinder Heads on this board are probably running heads that were NOT CNC machined.
Do most sponsors on this board CNC there heads or hand port them?
Do most sponsors on this board CNC there heads or hand port them?
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From: new england
Re: CNC vs. NON CNC Head porting?? LS1 heads may lend themselves more to hand porting because they dont seem to need as much material removal as older heads. Part of the reason they are so much better than old style heads, GM design engineers cast them closer to a good finished port from the get go.
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Verdad Gallardo TECH Addict
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From: new england
Re: CNC vs. NON CNC Head porting?? i DONT KNOW BUT I THINK cnc would be safer considering wall thickness of LS1 ports,consistency would make them more reliable.
Combustion chambers need to be identical also so computer doesnt set off missfire code. I plan on hand porting my own but this is for best results and i have lots of porting experience.And a flow bench. <img src="gr_images/icons/wink.gif" border="0">
Combustion chambers need to be identical also so computer doesnt set off missfire code. I plan on hand porting my own but this is for best results and i have lots of porting experience.And a flow bench. <img src="gr_images/icons/wink.gif" border="0">
Re: CNC vs. NON CNC Head porting?? The majority hand port.
CNC can only go so far, and they get finished up by hand.
I'm guessing that TEA in KY, and CNC Cylinder Heads in FL are the only ones, unless someone is buying CNC heads from Pete Incaudo and doing additional work on them.
CNC can only go so far, and they get finished up by hand.
I'm guessing that TEA in KY, and CNC Cylinder Heads in FL are the only ones, unless someone is buying CNC heads from Pete Incaudo and doing additional work on them.
Re: CNC vs. NON CNC Head porting?? Most hand port their heads. The best scenario would be a CNC'd head, of course with a good port design, and then finished by hand to remove all of the ridges left by the machine. Usually when I'm porting I feel like a machine. I get into a rhythem and time just flys by. You have to port systematically so it's difficult to just stop. What you do in one port has to be done in all of them in a row, for consistency anyway. As long as hand porting is done consistently in this way, and done by somebody knowing what they are doing, you can get the ports VERY close to exact.
Re: CNC vs. NON CNC Head porting?? So Jack when are you getting those hea ported?? I am still getting together all my exhaust stuff. I am going to go your way with the FLPs! <img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />
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Re: CNC vs. NON CNC Head porting?? Thanks guys for the explanations. I've learned a good amount of info on this topic. I wish learning stuff in college is as interesting as this <img src="gr_images/icons/wink.gif" border="0">
Jeremy,
..just doin a lil R&D on the heads. Prolly wont have them in the future, and if i do it wont be for a long time. your gonna like the FLP's. There not as bad as people make them out to be. Sure you might have a kink to work out with them, but then again what mod is every PERFECT when you install it, ya know. Lemme know if you have any problems with them, but im sure you wont.
take care
Jeremy,
..just doin a lil R&D on the heads. Prolly wont have them in the future, and if i do it wont be for a long time. your gonna like the FLP's. There not as bad as people make them out to be. Sure you might have a kink to work out with them, but then again what mod is every PERFECT when you install it, ya know. Lemme know if you have any problems with them, but im sure you wont.
take care
Re: CNC vs. NON CNC Head porting?? [quote]Originally posted by Pro Stock John:
<strong>The majority hand port.
CNC can only go so far, and they get finished up by hand.
I'm guessing that TEA in KY, and CNC Cylinder Heads in FL are the only ones, unless someone is buying CNC heads from Pete Incaudo and doing additional work on them.</strong><hr></blockquote>
Many people buy heads from Pete. I was there the other day..you should see the heads that go through there....tons of them... hes a top notch guy too.
<strong>The majority hand port.
CNC can only go so far, and they get finished up by hand.
I'm guessing that TEA in KY, and CNC Cylinder Heads in FL are the only ones, unless someone is buying CNC heads from Pete Incaudo and doing additional work on them.</strong><hr></blockquote>
Many people buy heads from Pete. I was there the other day..you should see the heads that go through there....tons of them... hes a top notch guy too.
Re: CNC vs. NON CNC Head porting?? Maybe Nineball can jump in here but I believe the early versions of MTI's fully ported heads started out with CNC heads and then were ported in-house by hand for final tweaking which gained additional flow.
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Re: CNC vs. NON CNC Head porting?? So is it correct to assume that getting heads CNC'd by one company is totally different than getting CNC heads done by another company, PROVIDED that they use DIFFERENT softwares???
If i call a local company by my house, would they tell me which CNC software they use or is like an 'exclusive' private thing? Point im tryin to get at is if some company 1K miles from me uses CNC by the same software that the guy down the street uses from me, i guess i could just go down the street? (im sure there are other factors, such as the 'finishing touches'
If i call a local company by my house, would they tell me which CNC software they use or is like an 'exclusive' private thing? Point im tryin to get at is if some company 1K miles from me uses CNC by the same software that the guy down the street uses from me, i guess i could just go down the street? (im sure there are other factors, such as the 'finishing touches'
Thread Starter
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From: Newport Coast, Ca
Re: CNC vs. NON CNC Head porting?? So is it correct to assume that getting heads CNC'd by one company is totally different than getting CNC heads done by another company, PROVIDED that they use DIFFERENT softwares???
If i call a local company by my house, would they tell me which CNC software they use or is like an 'exclusive' private thing? Point im tryin to get at is if some company 1K miles from me uses CNC by the same software that the guy down the street uses from me, i guess i could just go down the street? (im sure there are other factors, such as the 'finishing touches'
If i call a local company by my house, would they tell me which CNC software they use or is like an 'exclusive' private thing? Point im tryin to get at is if some company 1K miles from me uses CNC by the same software that the guy down the street uses from me, i guess i could just go down the street? (im sure there are other factors, such as the 'finishing touches'
Re: CNC vs. NON CNC Head porting?? SSBoy, my point is that I think only two companies (TEA, CNC Cylinder Heads) actually use CNC programs to port LS1 heads.
They do not use the same program. Just the same software.
They do not use the same program. Just the same software.
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Re: CNC vs. NON CNC Head porting?? [quote]Originally posted by Pro Stock John:
<strong>SSBoy, my point is that I think only two companies (TEA, CNC Cylinder Heads) actually use CNC programs to port LS1 heads.
They do not use the same program. Just the same software.</strong><hr></blockquote>
PSJ, okay i gotcha
<strong>SSBoy, my point is that I think only two companies (TEA, CNC Cylinder Heads) actually use CNC programs to port LS1 heads.
They do not use the same program. Just the same software.</strong><hr></blockquote>
PSJ, okay i gotcha
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Re: CNC vs. NON CNC Head porting?? basically a place like TEA or joes head porting (made up place) hand ports some heads to find out what works and what doesn't when they get results they want. they strap it on to the CNC thing and it reads the heads so to speak and make plots on a program or file then from then on the CNC machine can make exacting ports to match that hand ported head they were happy with. so its faster and cheaper for a company that has one already say a big mustang place like TEA or whatever. they can just pop it on the machine and walk away.
you would think a place that had one would just buy a big time head like a MTI or GTP and set there CNC machine to copy it from there on
Matt
you would think a place that had one would just buy a big time head like a MTI or GTP and set there CNC machine to copy it from there on
Matt