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Mon Jan 02, 2006 3:45 am

Ya I was wondering if you guys could help me find a web site that show you how to port out VW heads? I'm building a 2332cc motor and want to do most of the work myself, Its no fun if you have someone else do all the work. Or if anybody has any tips and adivce I would gadly apprecaite the help.I have a pretty good idea of how its done but would like more insite on it.
Thanks :)

Mon Jan 02, 2006 9:51 am

The book "How To Hotrod Volkswagen Engines" by Bill Fisher has some pictures and instructions on head porting. But remember, this book was written over 30 years ago, so some info is outdated.

My advise is to get a few junk heads and practice.

Mon Jan 02, 2006 12:03 pm

vwracerdave wrote: The book "How To Hotrod Volkswagen Engines" by Bill Fisher has some pictures and instructions on head porting. But remember, this book was written over 30 years ago, so some info is outdated.

My advise is to get a few junk heads and practice.

Thats what I was thinking too, better to mess up on crap heads rather than good ones. Any good sites out there though? I have found a few by not too great on detail

Mon Jan 02, 2006 12:14 pm

http://cal-look.com/tech/basic.shtml

Max

Mon Jan 02, 2006 8:51 pm

gabe321 wrote: Ya I was wondering if you guys could help me find a web site that show you how to port out VW heads? I'm building a 2332cc motor and want to do most of the work myself, Its no fun if you have someone else do all the work. Or if anybody has any tips and adivce I would gadly apprecaite the help.I have a pretty good idea of how its done but would like more insite on it.
Thanks :)

So..you think you know how to port heads already, do ya? :) Fine.

How about let us in on what you already know?

Any input on airspeed versus airflow? Airflow behavior around obstacles?

Valve and seat angles and widths? Straight versus curved port runners?

Valve unshrouding maybe? Pressure differentials? Intake/exhaust valve ratios?

These are just a few of things you have to know before you grab the rotary file.

Then comes the easy part of actually doing the port work and wielding that all-powerful rotary file. I hope you have good eye-hand coordination.

I suggest you do the bookwork first. Then have at it. And whatever you do, WEAR GOGGLES!!!

Good luck.

Mon Jan 02, 2006 9:15 pm

nsracing wrote: So..you think you know how to port heads already, do ya? :) Fine.

How about let us in on what you already know?

Any input on airspeed versus airflow? Airflow behavior around obstacles?

Valve and seat angles and widths? Straight versus curved port runners?

Valve unshrouding maybe? Pressure differentials? Intake/exhaust valve ratios?

These are just a few of things you have to know before you grab the rotary file.
Where did you learn to be so encouraging to someone asking for help?

How much did YOU know before you started carvin' for the first time?

:roll:

Max

Tue Jan 03, 2006 10:27 am

Max.. if you are going to teach this gentleman how to do port work, isn't a good idea to give him a good foundation?

You are already handing him the rotary file and you are yet to teach him what it is you are trying to achieve. To me, this is just plain wrong.

Get him started correctly. He is going to get thrown tidbits of info and that is supposed to be okay?

How much did I know before I started? Well if you must know Max... I already had my Associates in Automotive. Even before then I knew my way around machine tools. Airflow and Airspeed and all that jazz will come later, but I did the book work first.

I started out doing 3 angle valve jobs on heads I used. Then..unshrouding...then port streamlining. After I started to change out valve guides, very mild full porting school was in session. Nothing more than flap work ..really. :wink:

Then a very good friend bought a set of GeneBerg pair of heads...the top of the line they made $2200/pr. I got a good look at that! I was never the same. :lol: I have seen full port work from FAT Perf, Fumio, Jeff Denham..to name a few from machining these heads when they need refreshed. These guys are few of the best VW head porters in the world. It is very intimidating and an honor to work on these heads. I have my friends to thank for that.

Anyway..nuff on my resume.

All I am saying is ..if you are going to propagate something good, then do it wholeheartedly. Not half-cocked!

I do not think Clyde Berg or Fumio will be in any kind of trouble anytime soon. So let the education begin.

Peace.

Tue Jan 03, 2006 10:38 am

nsracing wrote: gabe321 wrote: Ya I was wondering if you guys could help me find a web site that show you how to port out VW heads? I'm building a 2332cc motor and want to do most of the work myself, Its no fun if you have someone else do all the work. Or if anybody has any tips and adivce I would gadly apprecaite the help.I have a pretty good idea of how its done but would like more insite on it.
Thanks :)

So..you think you know how to port heads already, do ya? :) Fine.

How about let us in on what you already know?

Any input on airspeed versus airflow? Airflow behavior around obstacles?

Valve and seat angles and widths? Straight versus curved port runners?

Valve unshrouding maybe? Pressure differentials? Intake/exhaust valve ratios?

These are just a few of things you have to know before you grab the rotary file.

Then comes the easy part of actually doing the port work and wielding that all-powerful rotary file. I hope you have good eye-hand coordination.

I suggest you do the bookwork first. Then have at it. And whatever you do, WEAR GOGGLES!!!

Good luck.

no, dont do it. you'll learn all the tricks. give me your money instead. blah, blah, blah..... :?

guess he "knew it all" when the first air-tool came into possession.

Tue Jan 03, 2006 10:55 am

nsracing wrote: gabe321 wrote: Ya I was wondering if you guys could help me find a web site that show you how to port out VW heads? I'm building a 2332cc motor and want to do most of the work myself, Its no fun if you have someone else do all the work. Or if anybody has any tips and adivce I would gadly apprecaite the help.I have a pretty good idea of how its done but would like more insite on it.
Thanks :)

So..you think you know how to port heads already, do ya? :) Fine.

How about let us in on what you already know?

Any input on airspeed versus airflow? Airflow behavior around obstacles?

Valve and seat angles and widths? Straight versus curved port runners?

Valve unshrouding maybe? Pressure differentials? Intake/exhaust valve ratios?

These are just a few of things you have to know before you grab the rotary file...
I think someones upset that they werent selected to do the heads.

Tue Jan 03, 2006 11:03 am

Peace on earth and goodwill to men..and women. :wink:

2006 is here and I look forward to working on my racecar. I will be out of the machining scene for awhile. Thank you.

I bid everyone good day.

Tue Jan 03, 2006 11:06 am

not all of us are cut out to be teachers I reckon (above), but if you want to port your own heads, do like the others say and pick up a PILE of used heads and start carving. get a rough idea and the DO NOTS from the book and go for it. You don't need a bunch of fancy diagrams, graphs, and charts if you have a bunch of heads to try your craft on. Do we actually think the first head porters studied charts and graphs? I highly doubt it. Granted, we now have machines and tools that will show us the numbers to back up the work, but nothing speaks for performance ON THE MOTOR. There are even CNC machines cranking out a fairly reputable port job these days. Do what you gotta do bro.

-j

Tue Jan 03, 2006 11:07 am

nsracing wrote: Peace on earth and goodwill to men..and women. :wink:

2006 is here and I look forward to working on my racecar. I will be out of the machining scene for awhile. Thank you.

I bid everyone good day.
Does that mean no more helpful posts? :roll:

Tue Jan 03, 2006 11:12 am

Wilfredo, every time you get on here you are a condescending smartass, and I for one am tired of it. Spread it out a little and in between, offer some help instead of the same crap about how great a machinist you are, even though you're BROKE, and how everyone else can't do shit right, and "how hard is it to.. ".

We all have our moments, but yours aren't really moments, yours are perpetual bowel movements on people's threads. Be decent, for fux sake.

Gabe, the book and another website (one we're probably not supposed to suggest) have good information for starters. Your objective is to smooth out the rough spots, and change the shape in such a way that it improves airflow NOT at a cost of air speed that's gonna screw up the ability to ram the air into the chamber, basically. Doing that is easy on a smaller scale. Getting it right for BIG flow is something I would suggest you leave to the experts on a nice set of heads. You will go through a LOT of cores learning it, so don't expect magic the first times around. Good luck!

Tue Jan 03, 2006 11:22 am

I'm glad I'm not the only one tired of all the condescending BS that nsracing spews out.

Tue Jan 03, 2006 12:12 pm

When you grind on aluminum use WD 40 so the file will not plug up. The VW head there is a area that holds the intake valve spring, be real nice to it. The valve spring needs the backing or it will come thru later on :shock: Mark don't beat me up like you did to nsracing. Not everyone can hit curve balls :roll: :roll: Terry

Tue Jan 03, 2006 12:46 pm

No Terry, you're giving advice here. That speaks for something. When you do that other stuff, well, count on it. :roll:

Tue Jan 03, 2006 5:53 pm

You probally won't find a site for vw heads only. The art of head porting, takes along time to get results,and you need to read everthing you can get your hands on. I have spent 30 years porting heads and dyno work, it took along time to fiqure it all out for sure.
I give anyone credit that takes up such a task for sure!
Read some good books, and put the ideas to work! There are alot of formulas to work out the design, this will make the porting clear as day for sure!

Tue Jan 03, 2006 6:07 pm

You ight want to check out the Standard Abrasives website. They sell a kick-ass kit as well. Only done one set of vw heads, but have some experience with 'yota heads. I like the full blown kit. Just my $.02

Tue Jan 03, 2006 6:10 pm

[quote="Darren Gurrola"]You probally won't find a site for vw heads only. The art of head porting, takes along time to get results,and you need to read everthing you can get your hands on. I have spent 30 years porting heads and dyno work, it took along time to fiqure it all out for sure.
I give anyone credit that takes up such a task for sure!
Read some good books, and put the ideas to work! There are alot of formulas to work out the design, this will make the porting clear as day for sure!

And this my friends is from someone who really knows what he is talking about!! Darren's (and the other Darren ) work is first class. I've been lucky to see and talk to both of them about head flow. 8) Tim

Tue Jan 03, 2006 7:22 pm

Tim, thanks for the quotes bro! Yeah, Myself and Darren K (KROC) have busted our balls on the porting for sure, and it paid off!