I am unaware with the 230/430 if you can move the engine back much or not, firewall mods, etc. If you have to start adding excessive weight in the tail, etc, sure it may not be worth it if the craft ends up a pig in the end. Jabiru are obviously locked into their own engines and do not cater for others, unlike myself, so conversion may prove too difficult.
Note at 5000 ft the Jabiru 3300 is losing 20% power and only making 100hp at full noise while the Honda is still maintaining 100%, eg; 170hp.
Clearly we are all quoting manufacturer's peak hp claims. Note the argument for any turbo engine is even stronger for continuous power, as full boost can be obtained at most any rpm.
Ahh, so finally you are adding what the weight is relative to that you are against. It is not a heavy engine at all as I have shown, it's just too heavy for your particular purposing.
Well then you all look silly, it's a stock standard 174 hp Honda Civic engine mass produced by the tens of thousands. It's also 194hp rating in the Accord, and 205 hp in the Civic Si model.
Maybe some of you thought Viking was "home turbo'ing" their 130 themselves, nope.
And it's not even particularly powerful by today's turbo standards, try to keep up, it's 2017.
So, you would rather a Toyota diesel than the Suzuki in a Jabiru? ...
Allow me to offer some physics and math.
Toyota max torque = 260 lb ft @ 2700 rpm
Suzuki max torque = 100 lb ft @ 7000 rpm, reduction factor of 2.6 = 260 lb ft @ 2700 rpm.
The fact is the Suzuki has the same torque as the Toyota when output shaft speed is equalised, hence the reason they have the same HP, but obviously they are purposed completely and utterly for different purposes so the comparison is ridiculous.