View Full Version : .15 tuning
03-18-2007, 01:37 PM
How much easier is the .15 to tune compared to the 2.5 and 3.3 engines? I was wondering because I had a 2.5 T-maxx a few years back and COULD NOT get it to keep a tune for the life of me. I heard somewhere that the .15 is easier to tune and wanted to get your take on it.
03-18-2007, 01:54 PM
Sorry, I don't know the answer but I'd like to know too. I'd like to eventually buy a Nitro Sport SE.
03-18-2007, 11:08 PM
Mine was a little finicky. Biggest problem was they tend to run hot. Keep it on the rich side of it. Run 10%, cause 33% is more finicky.
03-19-2007, 01:25 PM
I have 2 experiences regarding this: My brother has a Pro .15 Maxx and has had no issues with tuning it. Pretty much it has run great and has been easy to tune.
I had a Pro .15 Maxx which I had issues with tuning for awhile, but I think it had to do with the exhaust I had on it. I ended up ditching the .15 and threw a 2.5 into it. After some initial teething issues the 2.5 has been great. Since I don't tune for maximum power I pretty much leave it alone and it runs great every time. I recently moved and since have gone up about 5000 feet in elevation. It took about 2 tanks of fuel, which was admittedly old, but I feel like I have it back where I like it.
So I think the 2.5 may be more sensitive to adjustment which can make for more difficlut tuning, but once you have it set it is fine. On the other hand, the Pro .15 is easier to find that good spot with.
To make a sweeping observation (dangerous to do I know), usually higher performance engines tread a fine line in which they run well. Lower performance usually equals easier tuning.
03-20-2007, 09:31 AM
My rustler has the pro.15.
its simple to tune. I dont see how other people have a hard time with this or ANY engine for that matter if they really know HOW to tune.
Truth is, if your tuning skills arent that great, dont make up for it by getting a different engine. Practice. best way to do that is have a friend that knows how to tune well teach you.
03-22-2007, 04:20 PM
Mine was always hard to tune and ran hot (350) 6 tearn (sp) open at -10 out side.
04-11-2007, 08:54 PM
i have a pro .15 in my old t-maxx and it always ran and tuned great.warm it up and spend about 1 mintute and its tuned to the temperature huminity etc..
great motor traxxas racer
04-11-2007, 09:31 PM
They are know to be more finicky, but also known to take beating, they are undestructible. :)
But my friend had one and it was not really hard to tune.
The 2.5 and 3.3 are easier to tune. yes.
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