> I interview Seiji Tashima, the engineering expert
for Mazda's new
> rotary, at Tokyo on your behalf.  Here are a few
details he revealed:
> rotor width reduced by 5mm  saves weight, improves
apex seal performance
> trochoid is 25mm wider, 35mm taller  for more
displacement and torque
> would not reveal increase in eccentricity. New
displacement is > 800cc/rotor.
>
> Aluminum end plates have plasma-sprayed wear
surface direct and indirect
> fuel injection.
>
> Torque gains come from longer e-dimension, more
displacement, direct
> injection.
>
> Would not confirm 300 hp power goal.
>
> All gas seals improved, smaller flame holes
adjacent to spark plugs.
>
> 16x engine ran for the first time this year. full
development will be at
> least 2 more years.
>
> Engine weight is reduced from 125kg [275 pounds]
to 100 kg [220 pounds].
>
> I hope you find this useful.
>
> Don Sherman
>
> We sure do Don, Thanks
>
> Paul Lamar
>

Using these number we can make same calculations as
follows:
25 mm wider means short axis from 180 to 205 mm
35 mm taller means long axis from 240 to 270 mm

This results in *E = 16.25* mm and in *R = 118.75*
mm,
The ratio R/E = 7.308 up from 7.0

The *width* would be 85 by linear upscale,
subtracting 5 mm we are back
down to *80* mm.
In fact 79.8 mm would be 800 cc, 80 mm width gives 2
cc more or 802 cc.
That is right on.

Regards
Rolf Pfeiffer

Thanks Rolf

Paul Lamar ...No rotor no motor.

Rolf
If you're adding 35mm to the height then it would be
275mm?
regards, Robert



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