Long story short, motor blew on my 2013 Forester XT with VF52 and exhaust.
Engine being rebuilt but I'm probably going back to stock (tdo4, stock turboback). I'd like to go with the Type RA block for whatever minimal improvements there are and in case I want to go back to modified at some point.
Is there an issue using the Type RA block (which I believe has a slightly lower compression ratio than the EJ255) with the stock Forester tune/td04 or the OTS stage 1 tune? Is the only risk possible lower power?
A couple of people have tld me no issue. Cobb would not give me a clear answer.
Thanks.