Av8rRob
Well Known Member
Curious to those who have already bought your engines for -14's what your choosing and why?
I'm really curious as to the difference between the -390 and -400? (Besides 10).
Another question is what does lycoming say about the hp difference between the standard IO-390 and the Thunderbolt?
I'm really curious as to the difference between the -390 and -400? (Besides 10).
Another question is what does lycoming say about the hp difference between the standard IO-390 and the Thunderbolt?
Last edited: