Resized_20181209_130516_1557.jpeg
The question came up to a cnc guy about cheating on a spec cnc head at pri. Cnc guy states no problem, port them and cnc over the porting. Ok, So I tried doing some cnc cover up by hand. Is it possible this would fool anyone? Thanks, Charlie,Undercover cnc porting?
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Undercover cnc porting?
The question came up to a cnc guy about cheating on a spec cnc head at pri. Cnc guy states no problem, port them and cnc over the porting. Ok, So I tried doing some cnc cover up by hand. Is it possible this would fool anyone? Thanks, Charlie,
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Re: Undercover cnc porting?
Intake ssr. I was also thinking about using this texture for future designs that might see cnc reproduction. Thoughts?
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Re: Undercover cnc porting?
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Re: Undercover cnc porting?
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- Dave Koehler
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Re: Undercover cnc porting?
Nope, won't fool anyone. If you need the as cast look you will need to blast it with some rocks.
Dave Koehler - Koehler Injection
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Enderle Fuel Injection - Nitrous Charger - Balancing - Nitrous Master software
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"Never let a race car know that you are in a hurry."
Re: Undercover cnc porting?
I was shooting for a cnc look! Haha.Dave Koehler wrote: ↑Sun Dec 09, 2018 3:25 pm Nope, won't fool anyone. If you need the as cast look you will need to blast it with some rocks.
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Re: Undercover cnc porting?
I thought I was clear, I did this finish by hand. That was a cast head. Thanks, Charlie
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Re: Undercover cnc porting?
By hand fake cnc finish.
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Re: Undercover cnc porting?
Ehh.. there is a class where some CNC-ported head is required? And you try to fool inspectors with hand ported imitation?
If they measure the port dimensions why bother? The port may look very CNC but if the dimensions don't match.. game over.
And by the look;no,those ports don't go as CNC done.
If they measure the port dimensions why bother? The port may look very CNC but if the dimensions don't match.. game over.
And by the look;no,those ports don't go as CNC done.
"when uncomptent order unwilling to do unnecsessary the probablity of failure is high"
Re: Undercover cnc porting?
If I were the inspector, first thing I would think is "he's run a sand roll over the cnc work.....why would he do that? There must be more to this......"
You wouldn't get a pass from me without some serious explaining....
You wouldn't get a pass from me without some serious explaining....
Re: Undercover cnc porting?
From what I’ve seen, this usually involves some spec head where certain areas of the ports(port openings and bowls usually) come cnc’d from the manufacturer.
The goal is to modify the port to some degree and then have the cnc’d areas redone to restore the ootb appearance.
The goal is to modify the port to some degree and then have the cnc’d areas redone to restore the ootb appearance.
Somewhat handy with a die grinder.
Re: Undercover cnc porting?
No, new burr that leaves this finish. I thought it looked like cnc. I am not trying to fool anyone... at the moment.Morgo wrote: ↑Sun Dec 09, 2018 4:09 pm Ehh.. there is a class where some CNC-ported head is required? And you try to fool inspectors with hand ported imitation?
If they measure the port dimensions why bother? The port may look very CNC but if the dimensions don't match.. game over.
And by the look;no,those ports don't go as CNC done.
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Re: Undercover cnc porting?
Charlie,
The problem I see is that it does not have the defined tool path direction changes of a machine cut. Machine port work stands out to anyone that has seen it before.
The problem I see is that it does not have the defined tool path direction changes of a machine cut. Machine port work stands out to anyone that has seen it before.
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- Paul
Re: Undercover cnc porting?
That fake cnc texture was interesting on the flowbench.
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