In reply to mistanfo : I've raced a stock Hayabusa powered SCCA C sports racer / P2 sports racer since 2012, and the engines are as reliable as anvils. I'm still using wet sump lubrication, and motors look new, and have perfect compression and leakdown after 2 full seasons. I imagine in a track day environment where you're leaving a few percent on the table they'd go a long, long time, and if you manage to pop one, (checks his watch)... some kid just totaled their 'Busa just now.
