I’ve got a 912UL 80hp in my Mk3. I love the way it performs, but with used 912ULS engines being sold at seriously low prices now that the 912iS version is available, I’m slightly tempted.

However, is it simply too much power for a Mk3? I know I’d need to change the prop, but would it cruise notably more than the 85-90 mph that is does now, and would it climb that much better than the 1,000 fpm it does now?

Thanks.