Tuesday, November 27, 2012

broke the fresh 5.3 already


ok, so i took it right to the dyno friday, black friday, and hit it with 20lbs and she made 40rwhp extra, 640rwhp...


so i proceeded to top out the boost controller again around 26psi and it came up, and stumbled and laid over. i let out and knew i broke a piston or two again.
rods are strait. 
piston 3 had the lower ringland broken in half...
im at a loss here haha what do you guys think.


3 and 7 are broken the others are fine. used headgasket is fine also. pistons dont even have any marks in them showing detonation or anything.




2 comments:

  1. e85 is very resistant to detonation. 3, and 7 are known to have problems in the lsx engines, maybe 3, and 7 are getting hotter causing them to lean out more than the other cylinders,this could possibly close up the bigger ring gap or cause hot spots in the cylinder. what are your thoughts on ring chatter?

    ReplyDelete
    Replies
    1. i am pretty sure it was detonation anyway, see my update video

      Delete