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