jpindy3
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| posted on 19/5/09 at 11:06 AM |
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has anyone ported there own head DIY
I got a really good book on it,and was thinking of giving it a go.
anyone done this???
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omega0684
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| posted on 19/5/09 at 11:09 AM |
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dude check out my pinto rebuild thread in the 'engine and transmission' section, look at part 4: Porting 
here
Alex
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JAG
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| posted on 19/5/09 at 11:12 AM |
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Yep I had a go.
I can't say that it definitely made a difference but it hasn't spoilt anything and I learnt a lot about my engine and head whilst I was in
there
I have some photo's in my Archive of the head before, during and after. Some shots showing the valve shrouding on the MX-5 engine, some showing
the bare head, shots down the ports and the final head chamber volume measuring set-up I used.
I picked-up 3 Tungsten carbide burrs on Ebay for about a fiver and used these in my electric drill. They certainly chewed through the aluminium of the
ports - you have to be very carefull  
ETA: the pictures are in the 'General Stuff' folder.
[Edited on 19/5/09 by JAG]
Justin
Who is this super hero? Sarge? ...No.
Rosemary, the telephone operator? ...No.
Penry, the mild-mannered janitor? ...Could be!
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Dangle_kt
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| posted on 19/5/09 at 11:13 AM |
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yup, but it was a motorcycle engine.
Its pretty easy as long as you have the right tool for the job, and repeat over and over as you work, "I can take more off, but I can't
stick it back on"
Just make sure you understand where the valve guides etc are, so as not to compromise the reliabilty of the engine.
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Triton
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| posted on 19/5/09 at 11:14 AM |
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Good few years ago yeah, ported a Mini head using Vizards wicked book of making the A series go a wee a bit quicker..
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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MikeRJ
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| posted on 19/5/09 at 11:23 AM |
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Me and my brother did some porting on an A Series head with a 100Watt Minicraft drill (well before Dremels etc. became available and popular). Used
the David Vizard bible as per Triton, and the engine went very well.
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BenB
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| posted on 19/5/09 at 11:36 AM |
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quote:
Originally posted by jpindy3
I got a really good book on it,and was thinking of giving it a go.
anyone done this???
I thought about it but I couldn't get the dremel past the ear wax.
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tegwin
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| posted on 19/5/09 at 11:37 AM |
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There is an article somewhere.... someone used water and a sheet of glass to volume balance the combustion chambers in the head..... Amazingly
simple!......
Using a titration tube to measure the volume of each chamber and removing material to balance them!
------------------------------------------------------------------------------------------------------------------------
Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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mad4x4
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| posted on 19/5/09 at 11:41 AM |
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Is that not called Trepanation
Linky
[Edited on 19/505/09 by mad4x4]
Scot's do it better in Kilts.
MK INDY's Don't Self Centre Regardless of MK Setting !
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JAG
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| posted on 19/5/09 at 12:38 PM |
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quote:
someone used water and a sheet of glass to volume balance the combustion chambers in the head
Yes, that's what I did. Water with a little anti-freeze to colour it.
[img][/img]
Justin
Who is this super hero? Sarge? ...No.
Rosemary, the telephone operator? ...No.
Penry, the mild-mannered janitor? ...Could be!
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flak monkey
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| posted on 19/5/09 at 01:32 PM |
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Yep, the best book is How to powertune Ford pinto SOHC engines by Des Hamill. Very clear and good advice
Sera
http://www.motosera.com
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