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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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