Results 1 to 9 of 9
  1. #1
    RC poster
    Join Date
    Oct 2012
    Posts
    6

    3.3 Engine Performance Mod

    Just wondering what you guys think of this crank a guy is selling for the 3.3, coming from a 2-stroke background a little more porting of the crank should get some more power out of the 3.3, i need to stomp my buddys 3.3 & i think this might just do it.

    http://www.ebay.com/itm/Traxxas-3-3-...item27cb16ca01


    copy/paste
    Last edited by Double G; 10-31-2012 at 10:15 AM. Reason: fixed

  2. #2
    RC Turnbuckle Jr. humayrayakongkinaon's Avatar
    Join Date
    May 2011
    Location
    Long Beach, California
    Posts
    5,625
    link not working, also look into swapping the carb, check out this thread http://traxxas.com/forums/showthread...u-need-to-know
    | Rally GT8 Powered By CC |

  3. #3
    RC Racer
    Join Date
    Dec 2010
    Location
    Kauttua city, Finland
    Posts
    197
    I'm modifying my 3.3. It wasn't really that hard at all. I know there are some cheap (under 20$) "made in China" dremel copies and other similar rotary tools, that come with the necessary bits and you can get advice on the cuts just by looking aftermarket high performance cranks and there are also many forums where you will find topics about porting and other nitro engine mods, so I'd just do it my self. But nothing is stopping you from buying that crank of ebay, as that was after all only my opinion. Also I'd start on the outside of the engine, like getting a high performance pipe, better clutch and carb and stuff like that.
    |Traxxas|Revo|3.3|#5309|FIN|

  4. #4
    RC Qualifier
    Join Date
    Sep 2011
    Location
    New York State: Snowbelt
    Posts
    747
    If you buy that, tell me how's well it works
    SUMMIT |MERV * FIVE-T * REVO-E| T- MAXX-E

  5. #5
    RC Racer
    Join Date
    Aug 2012
    Posts
    191
    You might want 1 of these for your engine to

    http://www.davisdieseldevelopment.com/11-09-conrod.php
    REVO 21tm grunt & JQ Products "The Car" GO NITRO

  6. #6
    RC Champion
    Join Date
    May 2007
    Location
    West Coast, Fl
    Posts
    2,114
    Quote Originally Posted by ozziii View Post
    You might want 1 of these for your engine to

    http://www.davisdieseldevelopment.com/11-09-conrod.php
    I would pass on that and get one that has more refined work and finish.

    http://rbmods.net/rbshop/index.php?t...category_id=71
    2009 Florida State Monster Truck Champion
    RBMods

  7. #7
    RC Qualifier
    Join Date
    Feb 2011
    Posts
    392
    Now if you bought this would you need sleeve and all or what cause at the bottom Of the description it says 100 buck for it to basically withstand the extra rpm
    drive it like you stole it

  8. #8
    RC Racer
    Join Date
    Aug 2012
    Posts
    191
    Them rods do look better, I hadn't seen them, less metal would normally mean less strength though, but a lighter rod would help with higher RPM's. Be much better than the stock rod though.
    REVO 21tm grunt & JQ Products "The Car" GO NITRO

  9. #9
    RC Racer
    Join Date
    Dec 2010
    Location
    Kauttua city, Finland
    Posts
    197
    Yup, the RB Mods con rod should be the way to go, as most 3.3 con rod problems are split con rods (The RB Mods con rod doesn't have a groove from hole to hole and the 2 grooves that the RB Mods con rod has are on the same side and the other side is solid) and destroyed upper ends, because stock upper hole doesn't have a bushing. Knife edging shouldn't make the rod weaker, maybe even stronger as it isn't trying to limit those high RPMs.
    |Traxxas|Revo|3.3|#5309|FIN|

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •