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Author Topic: porting at home.  (Read 3001 times)
nicolas
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Posts: 3998



« on: July 31, 2008, 21:53:14 pm »

who has done it and most important WHAT can be done? i am not talking about welding and putting in new valves. but let just say you are in the 70's and you got a set off 1600 dualports and want more from your engine. some DIY tricks and thoughts.
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stealth67vw
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Posts: 2261



« Reply #1 on: August 01, 2008, 01:51:01 am »

I've done more than my fair share of wearing out Dremel motors. This article is great and so is the Bill Fisher book "How To Hotrod VW Engines"

http://www.cal-look.com/tech_head_porting.shtml

http://www.amazon.com/How-Hot-Rod-Volkswagen-Engines/dp/0912656034
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John Bates
JB Machining Services
1967 street bug 2020lbs w/driver
12.34 @ 108 mph 1/4
7.76 @ 89mph 1/8
plasticblack
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Posts: 652



WWW
« Reply #2 on: August 01, 2008, 09:16:36 am »


 How to Hotrod helped me 'do it at home'.

   Read the article.. then again....and again. I really neede to know what I was doing and why!

 Then go steady. It wasn't as tough as I thought it would be and the Dremmel is an easy tool to control.

One tip is to buy the Dremel Flexible Cable Holder.(see below)

 (the guy in the tool store gave me the tip) it made using the tool just like writing with a pen or pencil and you don't need to worry about the cable getting snagged up and causing you to make a mess of the piece you're working on.

 Have Fun Grin

     
 
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karl h
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Posts: 927



« Reply #3 on: August 01, 2008, 11:15:28 am »

I use an air driven grinder with a hard metal cutter. Once you have got these you never use a HSS cutter again
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nicolas
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Posts: 3998



« Reply #4 on: August 01, 2008, 20:52:00 pm »

thanks allready for the info. i have the bill fisher book, but i don't have the pictures i need to understand it all in that book. but once i cleaned the heads and shot some valvsprings up my nose when i remove the valves i will try to do some off the advices i read in the Bill Fisher book and found on the cal-look website. but still, i want to hear stories and info, good or bad things.


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Jim Ratto
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Posts: 7121



« Reply #5 on: August 01, 2008, 22:00:54 pm »

I've roughed up probably 6 sets of Vw heads in my life... it is a ton of work, and to me, if you want the results, it really pays to use a pro.
I think some of my results "worked" with good hp, but I spent so much time and mess doing them,
(the latest set of heads going on my '67 were halfway ported by me)

Hi Sheep....  Grin
« Last Edit: August 01, 2008, 22:03:00 pm by Jim Ratto » Logged
Harry/FDK
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Every Rule Was Made To Break, Even Callook...


« Reply #6 on: August 02, 2008, 18:09:17 pm »

I've roughed up probably 6 sets of Vw heads in my life... it is a ton of work, and to me, if you want the results, it really pays to use a pro.
I think some of my results "worked" with good hp, but I spent so much time and mess doing them,
(the latest set of heads going on my '67 were halfway ported by me)

Hi Sheep....  Grin

Nicolas, be prepared for a BIG mess. And if you still want to do it, stay on the conservative side. (especially under valve spring side ) M2Cts.
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Done ? Not Yet.
Black Sheep
Hero Member
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Posts: 2693


less is more


« Reply #7 on: August 03, 2008, 10:03:46 am »


 How to Hotrod helped me 'do it at home'.
   Read the article.. then again....and again. I really neede to know what I was doing and why!
 Then go steady.

Yes please go steady and triple check before you commit to what you are doing , as I bought a pair of new 044's off a guy who had started to do a bit of D.I.Y. porting with the Dremell , all looked fine till I got them machined for twin springs  and then !!!!! well I'll let the picture speak for itself .

 Angry Angry Angry
« Last Edit: August 03, 2008, 10:09:23 am by 49-rag » Logged

Stick with what you know works .
13.03 @ 98mph
Rocket Ron
Hero Member
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Posts: 2861


It's old school for a reason


« Reply #8 on: August 03, 2008, 11:50:26 am »


 How to Hotrod helped me 'do it at home'.
   Read the article.. then again....and again. I really neede to know what I was doing and why!
 Then go steady.

Yes please go steady and triple check before you commit to what you are doing , as I bought a pair of new 044's off a guy who had started to do a bit of D.I.Y. porting with the Dremell , all looked fine till I got them machined for twin springs  and then !!!!! well I'll let the picture speak for itself .

 Angry Angry Angry


thats not the ones you got this week HuhHuh   Cry
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13.12 @ 101.84

Grooving out on life

You can't polish a turd but you can roll it in glitter
Black Sheep
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Posts: 2693


less is more


« Reply #9 on: August 03, 2008, 12:15:49 pm »

Nah them one's aren't ere yet  Roll Eyes
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Stick with what you know works .
13.03 @ 98mph
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