Had a previous post about Lycoming vs Superior cylinders. My engine is being overhauled and there was a potential for delays getting the Lycoming cylinders but the problem was resolved as the Lycoming cylinders were shipped a couple days ago.
One of the decisions during the overhaul is whether to use the stock 8:5:1 pistons in the IO-360 M1B or upgrade to 9:5:1 pistons. The extra power would be nice but the debate is mainly over whether 100LL will or will not be available long term. There are pros and cons to both pistons and I have heard multiple justifications on both sides. According to a Lycoming service bulletin the stock M1B with 8:5:1 pistons can burn anything except 91 octane auto fuel
Don’t want to start a fuel war here, just trying to get comments on what pistons would you put in the engine. The engine is apart so right now I can go either way. Swapping pistons at a later date may be an option for some but not for me.
One of the decisions during the overhaul is whether to use the stock 8:5:1 pistons in the IO-360 M1B or upgrade to 9:5:1 pistons. The extra power would be nice but the debate is mainly over whether 100LL will or will not be available long term. There are pros and cons to both pistons and I have heard multiple justifications on both sides. According to a Lycoming service bulletin the stock M1B with 8:5:1 pistons can burn anything except 91 octane auto fuel
Don’t want to start a fuel war here, just trying to get comments on what pistons would you put in the engine. The engine is apart so right now I can go either way. Swapping pistons at a later date may be an option for some but not for me.