I've maxed out my jato 2.5 for top speed gearing wise...24/54 gearing. Aside from running taller tires is there anything I can do to get more out of it? It flies without a doubt but I want more.
People are putting the Revo gears on the Jato, 20/40 (I think), most have the 3.3 so I'm not sure if the 2.5 can handle it. What nitro % are you running? You could also get a better pipe and filter. Other than that you are looking at new engines.
Most running the revo gears on the jato due it because the revo gearing is mod 1 and stronger then the stock mod.8 gears. You can gain a little speed with the revo gears but probably not much more than 5-7 mph without modifying the chassis to fit larger clutchbells/spurs.
You will get to a point very quickly with just the 2.5 that a taller gear will just result in slower top speed because the engine just can't produce enough torque to pull the gear.