Hello I have a Mini Max gear reduction 12 volt starter that will turn everything I have from a 46 os to a 160 FX Also a 2300 ST with ease.As far as the 2300 hauling your 14 + lb plane around Hummmmmmmmm I would dare say yes it will but maybe not as well as one might like .Mine is in a 12 lb Shukoi and it does great ,but were not talking apples to apples here .I will say this much don't over prop that engine .I know they tell you it will swing swing 18 inch props and so forth and it will but my plane flys like a slug using them.I keep the revs up around 9K with a 16-8 and cant ask for a better combo for my style of flying and believe me I put them thru there paces .Adding more engine means adding more weight , as I'm sure you know which in turn ups the wing loading that much more ,What corsair do you have and whats the wing area ?There is such a thing as just plain to heavy to fly !!!! MY topflight corsair has a 120 OS 4 Stroke and weighs in at 9 lbs ,its still to crappy to fly yet, so it hasn't seen the air so far.I wished I could tell you yes that engine would be just the ticket but I cant ,but 2 things to keep in mind the price is right and mine is a very good dependable engine ,Starts on 1-2 flips and theres no midrange probs and idles reliable but I also use a type F glow plug.If the weight wont hurt you go with the 3250 thats a for sure 15 lb plane puller .Sorry I cant be of more help