I have been in RC for many years, a newbie to RC Tech.net. I can tell you that all engines seem to have a some sort of problem. Some break conrods, some blow out bearings and some lose sleeve pinch fast, but the thing that I think is important is a company that stands behind their product.

I have an Axe Rossi Mamba X1 and a Cobra X2. The Mamba popped the conrod right at one gallon on the second race tune and blew the engine completely. It wipped out everything but the carb and head. I contacted Chris Crews aka thenova70ss on here and he phoned me and spent over an hour on the phone with me telling how to handle the warranty on the engine. He then put me in touch with Shaka G. of Axe Rossi USA.

Long story short, Chris is the "go to guy" on Axe Rossi engines. He is the company sponsored driver and he really knows his stuff when it comes to racing engines. Rossi sent me a new engine with my head and carb at no cost at all.

I think Axe Rossi will work through these conrod problems soon and I find it great to find an engine company that builds racing engines and puts a zero cost warranty on them (no shipping costs either). There are many companies that claim to have warranties, but when you send the engine in for repairs, they hold it hostage for payment...not the case with Axe Rossi.

Thanks for the expert help Chris and Shaka. It's really good to find customer support in today's marketplace. DJ