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Polishing ports? #7762 Feb 23, 11:22pm Feb 23, 11:22pm
Joined: May 2002
Posts: 29
seattle
J
jpra923 OP
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jpra923 OP
J
Member

Joined: May 2002
Posts: 29
seattle
Polishing ports?
I was thinking of doing the polished port thing, but know little about it. i don't want a supercharger or a turbo, so i thought polished ports will be just as good. Anyone have info on this? I know it's expensive, but i'm willing to work for it. If you polish the headers, what if you have aftermarket headers? Should you just not buy the aftermarket headers if you're going to polish the stock ones? Or would it just help cut the price down of plishing ports? Help please!

Re: Polishing ports? [Re: jpra923] #7763 Feb 23, 11:37pm Feb 23, 11:37pm
Joined: Jul 2002
Posts: 182
SGV*S.Ca
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JDMCelicaGTS
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1985 Toyota Corolla GT
JDMCelicaGTS
J
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1985 Toyota Corolla GT

Joined: Jul 2002
Posts: 182
SGV*S.Ca
i dont know much about it either, but i asked a shop around my area and they said it will cost $500 for port and polish the head.


2000 GT-S - SOLD, 12/2003
1986 AE86 GT-S - STOLEN, unrecovered, 2/2004
1985 AE86 GT-S - built 4AGTE, SOLD 10/2009
2004 Camry LE, SOLD, 5/2007-10/2007
1994 GS300, 2JZGTE, HKS T04Z, 10/07-Current
Re: Polishing ports? [Re: JDMCelicaGTS] #7764 Feb 23, 11:42pm Feb 23, 11:42pm
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seattle
J
jpra923 OP
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jpra923 OP
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seattle
sounds like a reasonable price, thanks!

Re: Polishing ports? [Re: ] #7766 Feb 26, 11:27pm Feb 26, 11:27pm
Joined: May 2002
Posts: 29
seattle
J
jpra923 OP
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jpra923 OP
J
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Joined: May 2002
Posts: 29
seattle
I talk to this guy yesterday and he said the polishing ports is not a good idea. He said because you have to find someone really, really good at it. the equipment is very expensive. and you have to be extremely accurate. you could actually lose horsepower if done wrong. My question is why would any shop do it if it seems too hard to do?

Re: Polishing ports? [Re: jpra923] #7767 Feb 26, 11:42pm Feb 26, 11:42pm
Joined: May 2002
Posts: 3,295
Riverside, CA
2001 Spectra Blue Mica Toyota Celica GTS
Steven
ECelica Staff
2001 Toyota Celica GTS
Steven
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,295
Riverside, CA
There was a dicussion about P&P here:

https://www.celicahobby.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=1;t=001309

Quote:
Isaac has the basic idea. The purpose is to make your Intake ports, whether it be a 4 cyl., 6cyl., or 8 cyl., flow more effectively. If the air ports through with ease, not having to turn corners or travel along rough edges, you'll get more air in the cylinder which means more HP and Tq.

Port and Polish is like opening your nostrils wider and bigger to breather better. You can't breath well when you have a stuffy nose and nor can an engine.

Port and Polishing might alter the Air/Fuel ratios but that can be corrected by an Air/Fuel Controller. Apex-i and I believe Blitz makes these controllers. These air/fuel controllers need to be dyno tuned however.

If you do decide to get your Intake manifold's ports polished make sure you do it at a reputable shop. They would have to perform a flow test to see if each cylinder is receiving the same amount of air or else it will cause you to run rich or lean in various cylinders.

Also, get your hands on a separate head so that the shop can practice on it and recreate it on your cars actual heads.

Hope that clears things up

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