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porting at home.
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Topic: porting at home. (Read 3348 times)
nicolas
Hero Member
Posts: 4010
porting at home.
«
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
Hero Member
Posts: 2261
Re: porting at home.
«
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
Hero Member
Posts: 652
Re: porting at home.
«
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
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karl h
Hero Member
Posts: 931
Re: porting at home.
«
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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61 panel
http://www.thesamba.com/vw/forum/viewtopic.php?t=465022
68 ghia vert
63 sunroof
http://cal-look.no/lounge/index.php/topic,27456.0.html
86 caravelle
04 new beetle vert
nicolas
Hero Member
Posts: 4010
Re: porting at home.
«
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
Hero Member
Posts: 7121
Re: porting at home.
«
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....
«
Last Edit: August 01, 2008, 22:03:00 pm by Jim Ratto
»
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Harry/FDK
Hero Member
Posts: 3613
Every Rule Was Made To Break, Even Callook...
Re: porting at home.
«
Reply #6 on:
August 02, 2008, 18:09:17 pm »
Quote from: Jim Ratto 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....
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
Posts: 2693
less is more
Re: porting at home.
«
Reply #7 on:
August 03, 2008, 10:03:46 am »
Quote from: plasticblack 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.
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 .
«
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
Posts: 2861
It's old school for a reason
Re: porting at home.
«
Reply #8 on:
August 03, 2008, 11:50:26 am »
Quote from: 49-rag on August 03, 2008, 10:03:46 am
Quote from: plasticblack 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.
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 .
thats not the ones you got this week
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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
Hero Member
Posts: 2693
less is more
Re: porting at home.
«
Reply #9 on:
August 03, 2008, 12:15:49 pm »
Nah them one's aren't ere yet
Logged
Stick with what you know works .
13.03 @ 98mph
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