Port and Polishing???

[DTolo]

Does anybody here themselves or know somebody who does port and polishing? I am thinking on getting my head port and polished while it's sitting around waiting for a block to go on. I have a 2.0 16v. If anybody has an idea what the cost would be that would be great too.

[anothercoolJTI]

My shop charges between 175-380. Price varies depending on if we have to pull the valves, and re-install. We even re-seat the valves for ya if we pull'em. :tup: :tup:

[DTolo]

My shop charges between 175-380. Price varies depending on if we have to pull the valves, and re-install. We even re-seat the valves for ya if we pull'em. :tup: :tup:
Can I get a number please! And does your shop have any hook-ups on a good block to go with this head:tup:? Now that I have the cash it seems that nobody has the engine:(. I imagine I can pull the cams and chain. Are the valves gonna shoot at me once the cams aren't pushing them down? (remember Im a noob trying to build his first engine)

[Tom (aka Godzilla)]

The valves have little keepers that lock into the retainer that holds the valve spring and valves together. You need a valve spring compressor to hold down the retainer and spring, then remove the little keepers, then everything will shoot out into your eye.

[SYNYSTAGLI]

Wear eye protection :)

[Alan_One]

The valves have little keepers that lock into the retainer that holds the valve spring and valves together. You need a valve spring compressor to hold down the retainer and spring, then remove the little keepers, then everything will shoot out into your eye.

Shit,

you pull on me long enough and I'll shoot you in the eye.

[Tom (aka Godzilla)]

Shit,

you pull on me long enough and I'll shoot you in the eye.
Keep it on topic, you demented little bitch.

[DTolo]

hey Tom, how bouts I come out to your place some time and maybe I can use what you made. Maybe the same time we try and fix my seats? I still gotta get those brackets.

[SilverStone]

My shop charges between 175-380. Price varies depending on if we have to pull the valves, and re-install. We even re-seat the valves for ya if we pull'em. :tup: :tup:

Do you guyes do other cars? or only vw's? im sure its all the same but just asking. I have a mazda that needs port n polishing.

[Monster8V]

My shop charges between 175-380. Price varies depending on if we have to pull the valves, and re-install. We even re-seat the valves for ya if we pull'em. :tup: :tup:



huh? You always pull the valves to do a proper P&P job. How else do you flow bench test it? Or, do you just gouge out the ports and call it done? Too many hacks out there dude, (im not refering to anothercoolJTI here, general comment) just ask a few important questions like, "do you flow bench the head? Do you emphasize port size or port flow rate"?


Do it right or do it yourself for cheaper. :rolleyes:


The 16v head flows pretty decent to begin with. The 2.0L head has more material that can be removed. (means if you oops, its not gonna trash the head and start over) But there is really no need to really open up the ports. Quality gains can be had by simply port matching the head and manifold and doing a slight removal of the lip where it turns and goes down into the head.

Have fun with that! ;)

[Tom (aka Godzilla)]

hey Tom, how bouts I come out to your place some time and maybe I can use what you made. Maybe the same time we try and fix my seats? I still gotta get those brackets.
I should have some time over the next couple of weekends. I'll let you know.

[DTolo]

I should have some time over the next couple of weekends. I'll let you know.
That's cool. I check in for some training on the 14th and won't be done till mar 4. So sometime after that I imagine. Maybe there will be a good swap for sale by then.

[ncttrnl]

Keep it on topic, you demented little bitch.

Watch out... he's "_one"

[Tom (aka Godzilla)]

Watch out... he's "_one"
<cornholio voice>Are you threatening me?</cornholio voice>

http://www.louisville.edu/~caiser01/cornholio.jpg

[lostntainted]

okay so i have an ubernoob question for you, what's the benefits of port and polishing? is it worth it to fork out the ~$300???

[ncttrnl]

okay so i have an ubernoob question for you, what's the benefits of port and polishing? is it worth it to fork out the ~$300???

Its to increase the flow of the head and, as you undoubtably know, better breathing engines are happier engines.

[lostntainted]

Its to increase the flow of the head and, as you undoubtably know, better breathing engines are happier engines.awesome thank you... any ideas on an average of hp gain?

[anothercoolJTI]

huh? You always pull the valves to do a proper P&P job. How else do you flow bench test it? Or, do you just gouge out the ports and call it done? Too many hacks out there dude, (im not refering to anothercoolJTI here, general comment) just ask a few important questions like, "do you flow bench the head? Do you emphasize port size or port flow rate"?


Do it right or do it yourself for cheaper. :rolleyes:


The 16v head flows pretty decent to begin with. The 2.0L head has more material that can be removed. (means if you oops, its not gonna trash the head and start over) But there is really no need to really open up the ports. Quality gains can be had by simply port matching the head and manifold and doing a slight removal of the lip where it turns and goes down into the head.

Have fun with that! ;)


Well DUH :p ... of course we do the job with the valves out, even better to get the stem out as well. Normally we just get all the casting off on both I/E ports and smooth out the exhaust side a little more. And as far as flow benching it, we have Total Performance next door for that.... :tup:

[DTolo]

Yes, an idea on horsepower gain would be good. Especially the difference betweena p&P compared to or in addition to valve matching and the rest of what Monster8V mentioned.

[Tom (aka Godzilla)]

I don't know the numbers, but I'm sure that they'll vary from motor to motor, it'll depend on how good or bad the head was to start off with, how much material there is too remove, how skilled the mechanic is, etc, etc.....

[DTolo]

ok, ok. THis is starting to sound like it's not worth the money. FOr now I'll just worry about getting a new engine in my car. Oh yeah and now the bunny is makin some funny vibration noise in the front! I haven't a clue what it is but it's in sync with the spinning of the wheels. It's goin to the shop tomorrow at lunch. if things keep goin wrong I won't have any cash left to do the engine swap!

[Tom (aka Godzilla)]

Well, some people would say that if you're going turbo, a p&p job really isn't worth all that much unless you're a horsepower junkie. On a NA motor, it's pretty much a requirement for getting more ponies from the mill.

[ncttrnl]

Go with Monster8Vs suggestion and port match the thing yourself. You can do it with an air grinder or even a good dremel tool.

The easiest way is to gasket match it. Put a gasket on the head and use a sharpie to shade in the metal around the ports that is visible inside the gaskets ports. You are basically going to grind that off so the port on the block is the same size as the port on the gasket. It shouldn't be too much material. Then you put the gasket on your manifold and do the same thing.

Since your manifold matches the gasket and your head matches your gasket, you get a nice smooth air flow into the head from the intake and that can pick up some power for nothing more than a little bit of time. Its easy too so its a good beginners project.

The slight removal of the lip on the downturn he is talking about is a little more difficult but not much. All you're looking to do is grind off the little ridge a little to make the air flow better. That actually will probably net you more gains than the gasket matching.

The trick with all this is to take off no more material than is needed to smooth things out.

[DTolo]

If I get some time, I think I'll give it a shot. This not finding an engine is getting discouraging though. So I guess I gotta play with my head since I do have that. No pun inteded.