Off Topic - So I'll Keep It Short - Pistons

[ECMnut at aol.com]

Hi Walt,
 When GM designed the Turbo 4.3, they used Hypereutectic pistons
for strength factors over "standard" cast stuff.  This is mostly opinion,
but they seem to hold up well, util heavy detonation occurs.
That is when the the forged pieces appear to be superior.
Mine have 42k miles on them.  I live very close to a dragstrip,
so they aren't easy miles.  I use  20+ psi with no problems.
I have no experience with Hypereutectics and nitrous.
Detonation would probably be the limiter in that case too..
hth,
Mike V

Walt Sherwin wrote:

> Have any of you boost or NOS guys run the Keith Black Hypereutectic pistons
> in your mills?  Anything good or bad to report about them?  On the surface
> they sound intriguing VS a set of noisy forged jobbies on the street.
>
> Now for the link back to EFI content...........these will be fed by twin
> TBI's and a 7060 'puter and a 3bar MAP sensor.
>
> Thanks;
> Walt.
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