a stock 1.3 will float the valve springs LONG before 9000, this i know as fact. Ive reved my 1.3's guts out and have never seen it go over 7200 or 7300 before the valves float, which works well as a rev limiter by the way. Now going down hill while in gear then im sure you can get it up to 9000 and all the way too BANG !