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  1. #1
    RC poster
    Join Date
    Mar 2017
    Location
    UK
    Posts
    9

    2.5 vs 3.3 for my rustler

    Getting back into Nitro during lock down and people may have seen some posts I’ve been putting out. My rustler is probably about the 15 year old and currently have a 2.5 and a 3.3 engines to choose from both are and require new piston and sleeve which isn’t exactly cheap in the UK.

    My question is what are people running do I go for the bigger 3.3 or stick with 2.5? The rustler is small and only 2wd, although I’ve widened the front and rear end with RPM and eRustler arms it still flips easy, I’ve attached the Revo wheelie bar to the rear so I’m weighing up my want to go fast vs controllability and cost to fix. Any suggestions

    -Scott.
    Last edited by Double G; 05-21-2020 at 07:29 AM. Reason: language

  2. #2
    RC Racer rustlerstein's Avatar
    Join Date
    Jan 2016
    Location
    Wisconsin
    Posts
    228
    I put the 3.3 on mine from the .15 stupid fast. I have the largest bell gear and smallest spur gear I could find and it still wheelies like not tomorrow. Throttle control is key. I'd go big

    Sent from my SM-N960U using Tapatalk

  3. #3
    RC Qualifier nebulous.cow's Avatar
    Join Date
    Feb 2012
    Location
    Seattle by summer, AZ by Winter
    Posts
    326
    Go big or go home, lol. Go big, gear the heck out of it as mentioned.

    If the power is unmanageable, then just run it richer, lol.

    -Mike

  4. #4
    RC Enthusiast
    Join Date
    Jan 2014
    Posts
    42
    Just a thought,but wont the,3.3 eat the drive system up? I have had my 2.5 twist an axle. Just curious.
    Slayer Pro, Slash VXL 4x4, Jato 3.3, Rustler 2.5

  5. #5
    RC Qualifier nebulous.cow's Avatar
    Join Date
    Feb 2012
    Location
    Seattle by summer, AZ by Winter
    Posts
    326
    It could. There is a reason for the slipper clutch being there though

    You can also gear up with bigger clutch bells, it would overall reduce the amount of torque going into the drivetrain, and hopefully make it similar to the torque the 2.5 put out, but with higher speeds.

    -Mike

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