> Message text written by INTERNET:CarlSereda@aol.com
> >The typical TR2-3-4 opening is 9/16" and he found a few
> manifolds that had been reduced by almost half to 5/16" - in the cast.
> <
David Massey replied :
>
> Please note that that this 45% reduction in diameter corrolates to a 70%
> reduction in port area. Pi R squared afterall.
Always preferred round pies myself.
Badabump.
Anyway, I just checked my TR4A SPC, it does not show a different P/N for the
"manifold" (which it calls a body and I would call a WP housing). Both it
and my TR2/3 SPC show P/N 57014 for the casting.
Randall
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