Well over 8 in my TRX Pro and 5-6 through my Duratrax Torq .21 and both are still going strong! There is no doubt that the C5 is a kick ***** engine but, I just can't see spending $450 or more for a pullstart version and when it comes time to re-build it what does it cost $150 or more for a piston and sleeve?
You could buy 4-5 engines for that and have just as much fun or buy one and keep yourself in pistons and sleeves for 2-3 years!JMHO
