by gossie » Fri Apr 06, 2007 4:48 am
I have no problem with either .010 or .020 TD Cox engines, as long as you use at least 25 per cent nitro in the mix. 30 to 40 is even better.
As suggested, forget running them on pressure, it doesn't prove much on them, but it's worthwhile on the .049/.051s when used for competition.
I would never use the Cox nipple on the front though. Much better to use a backplate with a nipple in it, or drill one of the mounting lugs with a 1/16th drill and insert a 1/16th OD alum. tube into it with a touch of Cyano. to hold it in.