Originally Posted by
HaulinBass
whatever i was just giving some advice that almost all tuning issues come down to the tank seal and poorly set up linkage. I then gave the method the guys that get paid to do this do to get an engine 95% to a race tune. If you want to get into an experience and who i race with pissing match im not into it.
I'm not interested in pissing matches either. I have no doubt that you have 100x more nitro experience than I do. I am however pretty confident when I say that over all the years I've been into it, people always say "it's an airleak", or "change the bearing", and that is almost never the case. I used to seal engine carbs and backplates with silicon goup back 12-14 years ago, and I don't think it did jack. Nor does changing bearings on new engines, or rods after a gallon, or pre-heating beyond break-in for that matter. Now you race guys who care more about getting 12 seconds more run time than actually having fun...(
)* might do things differently, but by and large if a nitro engine is not running right, %90 of the time it's the needles..
I recently ran all my cars this year, with 5-year old fuel ("Fuel is bad" is another fairy tale/myth diagnosis IMO...), and they all ran great. Surprisingly so, given that in forums all anybody ever says is you have to change 12 different things if you let it sit a few months...
And I still think if you are expecting tanks to be faulty then something is wrong. (Rare...) exception to the rule? Maybe... But the rule, to the point that you should expect it? No.. Not in my opinion. Not unless you are running the cheapest of the cheap brands, which I'm sure you are not.
I seriously doubt it is an airleak or bearing issue either....
* I know racing puts more strain on things than most other types of use...
ps - Losi215, way back when I had a Nova 528XR, and I absolutely hated it. At the time I ran Sidewinder %25, which ran great in all my other - non-Italian - engines(LRPs, Machs, Axials, etc..) I could never get that dumb Nova to run right though.. I ended up selling it, nervous that something was wrong with it, but the guy contacted me and said thanks, it ran great... He was using a different fuel. After SW fuel was no longer available, I changed to Tornado %25, which I think has slightly less oil, and all my engines ran great with it, including various racing 21s, including Novarossis and RBs.., but also my MT non-Italian engines... So there could be something to a fuel with too much oil in it (I don't know, more than %12 or something I guess...) But even then I'd be a bit skeptical and still think you just need to fiddle with the needles more, and/or maybe just get some more fuel through it, in case part of what's going on is that it's just being bitchy during break-in....