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G'Day Rusty,
"Tis all happening. As I write, a single lobe E-shaft for a Renesis
is on the way to the heat treaters - one Renesis Single Rotor
coming up in about three weeks. Attached is shot of single rotor E-
shatf for my test REW single rotor. More pix later this week.
Sums I have done so far indicate that a single rotor Renesis will
conservatively make about 120 - 125 BHP @ 7,500 using the 4 port
end hsgs from the auto engine (it makes 200 in the car blowing
though mufflers and a cat)..
The reason i say that is we are only using the very large end
housing ports. The centre housing ports, by their very nature are
quite restrictive. So proportionally, a single rotor should make
quite a few more neddies than half od the twin rotor.
Futher, there is enough meat in the housings to get really nice
shaped inlet ports without all the ugliness of the six ports and
fiddling with barrels etc. With judicious and deft use of a porting
tool, I can see considerable extra gains.
I wouldn't be surprised if I could find an extre 30 or 40 BHP luring in
there without going too loopy. (Hmmmmm .... I wonder how much I
could get if I bridgeported the sucker???).
So a 150 BHP single rotor Renesis is NOT entirely out of the
question. Mind you, this is all conjecture & speculation until I've
actually done it.
Weight should be about 54 - 56 kgs as a "bare long' - with sump
and front cover (which includes a water pump!), but no ancillaries
or accessoies. (I don't really know until I actually weigh a finished
unit - but have a feeling that the Renesis end hsgs are a bit
weightier than the REW stuff - but I've been wrong before)
Fully dressed with a PSRU, it should be a little over 85 Kg, not
bad for 125 BHP. Stay tuned more pix of the Renesis engine
following.
Cheers,
Leon
On 19 Nov 2003, at 8:48, Russell Duffy wrote:
> Greetings,
>
> I've been on the gyro list, asking about the possibility of using a
> single rotor engine on a Dominator gyro. Anyway, below is the reply
> that someone posted. I've prodded him for more info, such as weighs
> for the housings, etc. I'll pass along anything he gives me.
>
> Rusty
>
> I have a project here underway involving the single rotor Mazda, we
> are using RX8 side port end housings, might be of interest to you? I
> plan to flight test this engine on the tandem Dominator. I don't like
> the Mazda rotary but after seeing the inards of the RX8 Renisis engine
> I'm way more interested! What we need to do is abandon the cast iron
> housings, but this is easier said than done due to thermal problems
> and maintaining sealing. Mazda have done it in the 24 hour race. It
> may be that the rotary is about to have its day in the sun! I'm sure
> we have all heard this before!
>
>
>
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