Porting Update

Codeman · August 12th, 2010, 08:04 PM

I started porting two days ago and did some more today. I have worked around 4 hours on the lower intake. I am making good progess. Ok I have one question however. I have a pretty rough finish from my cutter. I know that you don't want a smooth finish because it slows the air. But how smooth is too smooth? And how rough is too rough?

plak424 · August 12th, 2010, 08:08 PM

you want as smooth as possible. If you leave any roughness it creates turbulent flow in the air which slows it down. When its really smooth it promotes laminar flow, which is faster and more stable.

Codeman · August 12th, 2010, 08:13 PM

Ok are you sure? I have heard it both ways?

Mr. Red Pony · August 12th, 2010, 08:48 PM

What I have heard is you make the lower as smooth as you can, but with the heads, you want rough in some spots.

Codeman · August 12th, 2010, 09:43 PM

Ok well I will use a sanding stone bit and smooth it out. That should make it pretty smooth.

99 BLUE V6 · August 12th, 2010, 10:29 PM

Use the stone to knock down the high spots. Then go through with like a 36 grit sanding roll about 3/4 diameter. Then hit it with a flapping paper aprox 60 grit medium speed. look for high spots and do it again. Then finish it with a 60 grit sanding roll slow to medium speed. Without going into great detail that should get a rookie headed in the right direction. I spent about 8 hours on one before I'm ready to polish.

v6kid · August 13th, 2010, 12:47 AM

^ that is beautiful work!^

walt1120 · August 13th, 2010, 01:09 AM

what i always wondered about porting is, how do you guys know you porting the entire length of the runner evenly,does it need to be that perfect?

Matt. · August 13th, 2010, 08:19 AM

Originally Posted by walt1120

what i always wondered about porting is, how do you guys know you porting the entire length of the runner evenly,does it need to be that perfect?

I think they have kits to make sure the porting dead even

nukeman13 · August 13th, 2010, 09:05 AM

Originally Posted by Matt.

I think they have kits to make sure the porting dead even

where can u get these kits from?? i been lookin into polishing.. idk if im good enough to port but i was gonna go to the pull a part and grab some so i dont have to take mine off and if i mess them up it wont hurt anything lol

Codeman · August 13th, 2010, 10:10 AM

I just try to keep it as even as possible all the way through. I am eye balling it.

And holy crap blue!!!!!!!!!! WOW mine looks like crap compared to yours

I have put about 5 hours into mine so far. I need to get a new air grinder because mine the end is bent I noticed so the bit trys to jump. Making it difficult to control.

Thanks for the gaskets. And I am going to have to buy some more bits lol. I need one of them flapper things. I got sanding rolls and those sanding stones like that.

99 BLUE V6 · August 13th, 2010, 12:10 PM

Originally Posted by walt1120

what i always wondered about porting is, how do you guys know you porting the entire length of the runner evenly,does it need to be that perfect?

Its not nessacarily even all the way through.( not sure what you mean) Sometimes you have to move a wall over or take a hump out or even redo a radius. Its also important to have a good entree from manifold to head with out a very sharp turn. That sometime requires a little reshaping.

99 BLUE V6 · August 13th, 2010, 12:13 PM

Originally Posted by Codeman

I just try to keep it as even as possible all the way through. I am eye balling it.

And holy crap blue!!!!!!!!!! WOW mine looks like crap compared to yours

I have put about 5 hours into mine so far. I need to get a new air grinder because mine the end is bent I noticed so the bit trys to jump. Making it difficult to control.

Thanks for the gaskets. And I am going to have to buy some more bits lol. I need one of them flapper things. I got sanding rolls and those sanding stones like that.

If a mans going to be in this line of work he's going to need some tools. LOL LOL

August 12th, 2010, 08:04 PM	#1
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	Porting Update I started porting two days ago and did some more today. I have worked around 4 hours on the lower intake. I am making good progess. Ok I have one question however. I have a pretty rough finish from my cutter. I know that you don't want a smooth finish because it slows the air. But how smooth is too smooth? And how rough is too rough? __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

August 12th, 2010, 08:08 PM	#2
plak424 Regular 2000 Mustang v6 16.683@83.86 Join Date: Feb 2010 Location: CT Posts: 344 iTrader: 0 reviews	you want as smooth as possible. If you leave any roughness it creates turbulent flow in the air which slows it down. When its really smooth it promotes laminar flow, which is faster and more stable. __________________ A turbo, exhaust gasses go into the turbocharger and spin it, with a supercharger, air goes in,witchcraft happens and you go faster~Jeremy Clarkson

August 12th, 2010, 08:13 PM	#3
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	Ok are you sure? I have heard it both ways? __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

August 12th, 2010, 08:48 PM	#4
Mr. Red Pony Resident badass 01 Built V6 (3.9) 13.91 @ 99.1 N/A Join Date: Jan 2010 Location: Lawton, Oklahomo Posts: 6,789 iTrader: 10 reviews	What I have heard is you make the lower as smooth as you can, but with the heads, you want rough in some spots. __________________ 271rwhp N/A V6 The Name is Danny. I'm a GM Technician. Suck it.

August 12th, 2010, 09:43 PM	#5
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	Ok well I will use a sanding stone bit and smooth it out. That should make it pretty smooth. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

August 12th, 2010, 10:29 PM	#6
99 BLUE V6 Premium Member 99 V6 BASE NEVER RACED THIS ONE Join Date: Nov 2009 Location: PALM BEACH FLORIDA Posts: 1,377 iTrader: 1 reviews	Use the stone to knock down the high spots. Then go through with like a 36 grit sanding roll about 3/4 diameter. Then hit it with a flapping paper aprox 60 grit medium speed. look for high spots and do it again. Then finish it with a 60 grit sanding roll slow to medium speed. Without going into great detail that should get a rookie headed in the right direction. I spent about 8 hours on one before I'm ready to polish. __________________ Last edited by 99 BLUE V6; August 12th, 2010 at 10:41 PM.

August 13th, 2010, 12:47 AM	#7
v6kid Hardcore Enthusiast 1999 Mustang v6 Join Date: May 2010 Location: Clearwater, FL Posts: 1,725 iTrader: 0 reviews	^ that is beautiful work!^ __________________ I went to school to be a mechanic, so I know what I'm talking about most of the time. mods in the garage, slowly getting peppier. 6ershootout.com summer of 2012... Be There

August 13th, 2010, 01:09 AM	#8
walt1120 Hardcore Enthusiast 04 Stang 1.0Gallon V6 14.45 @95.8 Join Date: Mar 2010 Location: South Jersey Posts: 2,130 iTrader: 2 reviews	what i always wondered about porting is, how do you guys know you porting the entire length of the runner evenly,does it need to be that perfect? __________________ 2004 Bolt on & Cammed 3.9L V6

August 13th, 2010, 10:10 AM	#11
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	I just try to keep it as even as possible all the way through. I am eye balling it. And holy crap blue!!!!!!!!!! WOW mine looks like crap compared to yours I have put about 5 hours into mine so far. I need to get a new air grinder because mine the end is bent I noticed so the bit trys to jump. Making it difficult to control. Thanks for the gaskets. And I am going to have to buy some more bits lol. I need one of them flapper things. I got sanding rolls and those sanding stones like that. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

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