Subaru vs. Lycoming

JohnR · Post by **JohnR** » Tue Jan 22, 2008 9:53 pm

I don't think you will ever regret going with the Lyco.

By the way, Welcome to RB!

timotb · Post by **timotb** » Tue Jan 22, 2008 10:27 pm

Im familiar with the Lyco in the Mooney, IO-360.....just loud with vibrations I was hoping to get away from....still a great engine

cjensen · Post by **cjensen** » Tue Jan 22, 2008 10:38 pm

Which Mooney? I used to fly an E (IO-360 parallel valve), and an early J (IO-360 angle valve)...both of them shook like wet dogs at startup, idle, and shutdown, both vibrated annoyingly at most power settings. I think it's a Mooney thing, not a Lyco thing because I've experienced one of the smoothest engines in an RV...Lyco IO-360. Sube's are smooth too (smoother???), just a different frequency...

rv6ejguy · Post by **rv6ejguy** » Wed Jan 23, 2008 9:27 pm

Mooneys and Grummans seems to have a lot more shake and vibration in their Lycoming installations than say a 172. I'm guessing structure and mounts play a large part here. The Lyco RVs I've flown were more towards the Cessna range and pretty tolerable- not too much of the wet dog thing at startup and shutdown. The Lyco gets the job done- but it is not refined by automotive standards- if this matters to you.

I agree with Chad, the low frequency exhaust pulses and lateral shaking in the Lyco is more noticeable to humans than higher frequency stuff the Sube puts out.