S scgck New Member Jan 25, 2010 #1 Has anyone seen a timing curve for the 4 tec na engine? I would be interested to know how Rotax runs 10.5:1 compression with 87 oct. fuel without risk of detonation. Thanks
Has anyone seen a timing curve for the 4 tec na engine? I would be interested to know how Rotax runs 10.5:1 compression with 87 oct. fuel without risk of detonation. Thanks
