Thanks very much
for taking the time to answer my questions! I'm curious as to why you
suggest the Renesis engine? What things are improved w/ this new engine?
I'm wondering though, if cost wouldn't out-way the incentive because you would
have to buy a new engine from Mazda? Compared to the price of a 20B
engine? I tried looking up info on this new engine on Google and didn't
really get anywhere and I wondering if you have other sources? Do you
know even ruffly the improvements a person could expect over the
20B?weights?Power? If you had to do this all over again, what changes
would you make? Would you still go w/ the 20B, Renesis? or something else? If
you don't mind me asking [ just tell you you'd rather not say] How much
do you have into your 20B install? How is the price of the Catto prop compared
to say and IVO Magnum? Is your 20B install a normal breather or a
turbo'd version?
Jarrett;
The 2-rotor Renesis will put out close
to 90% of the hp of the 3-rotor 20B. It is considerably lighter and
probably has a bit lower BSFC. The lighter rotors running at higher speed
may even be smoother than the 20B. Tracy already has the redrive for it.
I paid Atkins $6500 for the rebuilt 20B
block plus alternator and water pump. From what I understand, that is
about the same price as a new renesis. With all the custom parts, pieces,
cooler, 2 radiators, inconel tangential muffler, intake manifold, TB,
injectors, redrive, controller, fittings etc., etc., etc.; I have close to
$22,000 into this installation. It is normally aspirated; plenty of power
for a plane that is designed for 200hp Lycoming.
I don’t regret anything about
doing this engine installation, or building the plane. I haven’t
flown it yet, but I expect it to excellent. If I had it all to do over
again, I’d give serious consideration to buying an airplane and going
flying. But then you’re going on step further. I started with
a kit.
The Catto prop is $1650. Don’t
know the current price for the Ivo Magnum, but I guess it’s a couple hundred
more. I not impressed with the IVO from a reliability standpoint, and I
think the pitch distribution limits top end performance if you expect to go
over about 210-220 kts.
Just one guy’s point of view. . .
Al