I found this out when doing the experiments on the TR-250 engine and needed a
race weekend to prove the point. The tech test in those days was to pull the
starter and then look to verify the material (rust is an indication of ferrous
metal right?) and maybe a magnet, but you don't bother with magnets when there
is rust.
The following year the aluminum flywheels were legal and by then I had solved
my problem and completed the testing.
With an aluminum head though, you'd better not adjust the valves at the race
track. But of course if you were to paint the head interior with epoxy paint
for better oil drainage (hah), who could complain or note this. As in most
other things , there are ways and ways, and where there is a will there is a
relative.
----- Original Message -----
From: Robert M. Lang
To: kas kastner
Cc: wgrosenbach@juno.com ; gkbyrne@optushome.com.au ;
Roadandtrack2@hypermax.net.au ; fot@autox.team.net
Sent: Wednesday, June 08, 2005 1:45 PM
Subject: Re: alloy head, for 6 cylinder
On Wed, 8 Jun 2005, kas kastner wrote:
> If you have the aluminum head metal sprayed with CAST IRON (.005" thick)
it
> will even pass the magnet test. Then you rust it in places with a little
> muratic acid. I can vouch that it works on flywheels. Funny how I
remember
> things like that.
That is too kool. You made my day, Kas. And probably most of the FOTs!
I'm guessing that aluminium flywheels weren't allowed in Prod "back in the
day". Make that - I _know_ they weren't after reading that statement.
rml
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