Results 1 to 7 of 7

Thread: Racing 3.3

  1. #1
    RC Qualifier
    Join Date
    Jun 2012
    Location
    Palisade Colorado
    Posts
    511

    Racing 3.3

    Well I found a ss mods crank and this is were the engine started, it has new piston and sleeve and a bulked up connecting rod. Every thing from the bearings to the block is new, but I'm going to put a os carb on it after its done being broken in but do you think the crank will affect the break in??? The carb is a stock 3.3 traxxas carb that is set for break in. Would I make it a little more rich?? What do you guys think thanks!

  2. #2
    RC Qualifier
    Join Date
    Jun 2012
    Location
    Palisade Colorado
    Posts
    511
    My last question is: it seems like the engine had great amount of pinch ( with the piston and sleeve) I mean it has pretty good compression but it seems like other engines I've had have had more??? Any thoughts on that?? Also it does have a little after run oil in it because I used it as like a pre lube
    Thanks John

  3. #3
    RC Turnbuckle Jr. Wildman4910's Avatar
    Join Date
    Jun 2009
    Location
    Cocoa Florida
    Posts
    3,941
    The crank shouldn't have any effect on the breakin of thr P/S.
    On my 2.5's the "stock settings" are too lean, so be sure to get temp up over 200f & under 270f during breakin.

    A little ARO in the cylinder before first start up is a good thing.

    Heat it up wth a hair drier and let'er rip!
    Look out for the tree/crunch!

    LiPo? Naw NITRO!!

  4. #4
    RC Qualifier
    Join Date
    Jun 2012
    Location
    Palisade Colorado
    Posts
    511
    Ok we'll I started to break it in Sunday and to day it got to the second tank but I forgot the body !! I've never done this!! Do you think it will affect it it was around 200 not much higher is that ok?? Most all of the engines I've broken in have been about 220 or 230 should I redo a tank?? Any ideas??
    Thanks lol

  5. #5
    RC Champion
    Join Date
    Mar 2012
    Location
    Dawson creek bc
    Posts
    1,115
    Break in temps should be between 200-220. Heat cycle the engine, allowing the engine to cool after every tank

  6. #6
    RC Turnbuckle Jr. Nitronaught's Avatar
    Join Date
    Oct 2005
    Location
    South Florida
    Posts
    18,503
    Quote Originally Posted by Kyleb View Post
    Break in temps should be between 200-220. Heat cycle the engine, allowing the engine to cool after every tank
    210-270 are acceptable break in temps.... I prefer to be on the warmer side during break in myself,,, allowing full expansion of the case, piston and sleeve...

    +1000 on letting the engine cool... The break in process is a heat cycling method.
    Robin Williams
    He will be greatly missed...

  7. #7
    RC poster
    Join Date
    Jan 2013
    Posts
    10
    The crank will have little difference for a break in setting. With that one you can strategy at stock and just go from there.

Posting Permissions

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