Gregg Baker wrote:
> I'm GOING TO port and polish my own heads. I might even reshape a combustion
> chamber if I can find the appropriate info. I have got the Head Modification
> book by Vizard, How to Powertune the B by Vizard(maybe) and the Blueprinting
> Engine book by somebody else. I've read all the books and am looking for some
> more......theoretical or practicle. I'm really pumped about learning this
> stuff.
>
> Questions:
> 1. Any other books out there that I can devour?
> 2. What kind of grinder\polisher should I look into?
<snip>
> I would REALLY appreciate responses to both questions from anybody with
> experience or just a good idea. I don't see any other books on point but I
> know there out there.
Really Pumped
Gregg Baker
Dear Pumped Up Friend Gregg-
1. Stay pumped about learning.
2. Simmer down when you put that carbide burr to the cast iron.
3. Remove only enough to achieve a SMOOTH finish-- polishing is a waste of
time.
4. Spend time matching the ports to the manifolds which you will have only
smoothed out.
5. An MGB combustion chamber is NOT to be re-shaped. You may smooth it out and
perhaps round off the point only.
6. Remember you can destroy the flow characteristics of your head by ENLARGING
the ports.
7. The grinding equipment you need is of minor importance to the restraint you
will need.
8. Engine breathing starts at the filter opening-- Through the carbs-- through
the intake manifold-- through the head-- through the exhaust manifold--
through the exhaust system and finishes at the end of the tail pipe.
The head accounts for about 8 inches of this torturous path so be sure to
bring the rest of the roughly 10 feet up to the same standard you propose
for the head.
9. Resist the temptation to oversize the exhaust system or your hard work will
go for naught.
10.Don't let all this scare you. It is wise of you to seek information that may
prevent a disaster. Keep on reading. Keep on learning. Someday you will
be advising another eager gung ho enthusiast itching to tweak his MG.
Good Luch Gregg.
--
Ralph Cadwallader Lakewood, OH
72GT 66 4/4 68 FBird Old age and treachery will prevail.
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