What is a port and polish???
New User
Joined: Oct 2001
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From: Bloomington, Indiana, USA
Re: What is a port and polish??? (6snoop6)
A port job is simply taking the head of the motor and grinding the intake and exhaust ports (holes) into a more aggressive shape...this is usually done by enlarging the holes slightly and sharpening the divider in the middle to provide maximum airflow and velocity...
polishing is simply polishing the grinds down to a smooth polished surface so that when air is sucked into the engine and goes through these ports, the flow is nice and smooth instead of turbulent...
this kind of performance upgrade is usally only done after many other serious other upgrades have been performed...for instance, you should have the simple bolt-ons accomplished, as well as a modified or upgraded intake manifold...it is usally one of the last steps in improving the airflow of your engine...
also, pricing depends on the quality and experience of the machinest...i've seen them go from $300 to $1500...
polishing is simply polishing the grinds down to a smooth polished surface so that when air is sucked into the engine and goes through these ports, the flow is nice and smooth instead of turbulent...
this kind of performance upgrade is usally only done after many other serious other upgrades have been performed...for instance, you should have the simple bolt-ons accomplished, as well as a modified or upgraded intake manifold...it is usally one of the last steps in improving the airflow of your engine...
also, pricing depends on the quality and experience of the machinest...i've seen them go from $300 to $1500...
that's no moon
Joined: Jun 2002
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From: Death Star 3
Re: What is a port and polish??? (Nick H)
Both porting and polishing can be done at home with some simple tools. There isn't a whole lot to it. As said before unless you have other stuff done it isn't cost effective.
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From: wisconsin, US
Re: What is a port and polish??? (6snoop6)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 6snoop6 »</TD></TR><TR><TD CLASS="quote">Could someone explain the concept of a port and polish? What does it do and how expensive is it typically?? I have an f22</TD></TR></TABLE>
SEARCH...and thats all i have to say
SEARCH...and thats all i have to say
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Joined: Mar 2003
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From: wet Dreaming, over 400whp, USA
Re: What is a port and polish??? (icedmocha)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by icedmocha »</TD></TR><TR><TD CLASS="quote">Both porting and polishing can be done at home with some simple tools. There isn't a whole lot to it. As said before unless you have other stuff done it isn't cost effective. </TD></TR></TABLE>For a quality job, have a pro do it...
Honda-Tech Member
Joined: Jan 2000
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From: San Diego, CA 92104
Re: What is a port and polish??? (icedmocha)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by icedmocha »</TD></TR><TR><TD CLASS="quote">Both porting and polishing can be done at home with some simple tools. There isn't a whole lot to it. As said before unless you have other stuff done it isn't cost effective. </TD></TR></TABLE>
Not really true. Yea, sure, you can make the ports bigger and smooth them out but that doesn't guarantee better flow. It's even possible to make thef low worse if you don't port properly. Some shops carefully measure the flow after each step in the process to make sure that the porting actually accomplishes what it's suppose to do.
Not really true. Yea, sure, you can make the ports bigger and smooth them out but that doesn't guarantee better flow. It's even possible to make thef low worse if you don't port properly. Some shops carefully measure the flow after each step in the process to make sure that the porting actually accomplishes what it's suppose to do.
that's no moon
Joined: Jun 2002
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From: Death Star 3
Re: What is a port and polish??? (2000Accord5sp)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2000Accord5sp »</TD></TR><TR><TD CLASS="quote">
Not really true. Yea, sure, you can make the ports bigger and smooth them out but that doesn't guarantee better flow. It's even possible to make thef low worse if you don't port properly. Some shops carefully measure the flow after each step in the process to make sure that the porting actually accomplishes what it's suppose to do.</TD></TR></TABLE>
You are NOT goint to see a huge difference. I have seen both and worked in a machine shop. Unless you have a mega bucks racer it ends up being a waste of money to pay someone to do it. The porting part is the somewhat tough part.
Not really true. Yea, sure, you can make the ports bigger and smooth them out but that doesn't guarantee better flow. It's even possible to make thef low worse if you don't port properly. Some shops carefully measure the flow after each step in the process to make sure that the porting actually accomplishes what it's suppose to do.</TD></TR></TABLE>
You are NOT goint to see a huge difference. I have seen both and worked in a machine shop. Unless you have a mega bucks racer it ends up being a waste of money to pay someone to do it. The porting part is the somewhat tough part.
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