I'm trying to choose an engine for an ESM Freestyle Rush (.46 size
I would suggest not going to a 60 size engine since they are the next size up in crankcases and bearings. They tend to weigh a lot more than engines in the 40-50 class.
I suggest you look at something like the Webra Speed 50 as a powerful, light weight engine. MVVS also makes some great engines this size.
Poxy, if money is no object ( it is usually), you can buy a Dub Jett 60 that's lighter that the 40. 40=17.5oz. 60L=17oz. Fantastic engines that actually turn the advertised figures. Check 'em out at
YEEEHAAAWWW! They do turn up!
Pardon my ignorance, but isn't torque, i.e. the ability to turn a large prop, more important in this application than the ability to spin a small prop at 18,000 RPM? If so, something as mundane as a Fox .50 might actually be more appropriate than a Jett.
Geoff, putting on Nomex underwear
Hi Geoff, That's precisely why I suggested the 60L. Go to the Jett site and check it out.
Geoff,
The Jetts are capable of turning larger props as well.
Stay away from the Magnum. You might want to look at the Tower 46 good price and lots of power.
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