Re: Numbers, any one?

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: Tom Jennings <tomj@xxxxxxx>
" 
" On Sat, 16 Jul 2005, Sandwich Maker wrote:
" 
" > an open chamber is a more-or-less smooth bowl the full diameter of the
" > cylinders.  a closed chamber can be any shape that doesn't cover the
" > full cylinder diameter.  this leaves 'squish' area where the piston
" > closely approaches the head.
" 
" Aha! OK these are closed heads.

and the p/n corresponds with the '64-7 cc head, afaik.

" But this was a turbo motor of likely-insane boosts, so I imagine
" customary rules of thumb don't apply (though physics still does :-)

quite a few don't.  my engine friend is a demon at porting, and in his
early days took junk heads, hogged the ports out -insanely- big, then
filled them back in with plasticine and flowed them to find out
exactly what shapes worked best.  he already knew that bigger doesn't
equal better, but one odd thing popped out -- porting is almost
irrelevant in blower motors.  he got to play with a turboed engine in
a few configurations, and his best ported heads made no measurable
difference over near-stock ones.  his explanation - boost conquers
all.

" Can anyone guess what sort of boost pressures might be required to
" get 700 hp from 182 cu in? Two TE06's with 1.54 A/R. It's 3.85
" hp/cu in.

you'll probably also want dished slugs with a low c/r, maybe 7:1.

another thought strikes me - don't use a piston that depends on heat
treatment for strength.  they get hot [duh!], and over time can
actually slowly anneal the treatment out.  if you're a big-bucks racer
and rebuild your engines frequently, this isn't a problem.  for the
rest of us...
--
i just had a vision of a '64 american sedan with this engine, kicking
some butt.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen

adh@xxxxxxxxxxxxxxxxx                       and think what none thought