Tearing apart the motor and getting ready for next year, this was my first season and I noticed the pistons having crazy wear! Its like this on most the piston skirts but not all, is this normal, or is somthing poss to loose, wrong etc....

 

Looks like the piston to wall clearances are off.

 

thats not normal at all

 

Looks good to me if your reving to 11 grand

 

shifting at 10-10.2k. Had a couple 3rd to 2nd shifts that went to like 12.5! Are these still usable? Going to change the rings also, number 3 was only 100psi

 

Looks like the p/w was too tight, or possibly from the miss-shifts.

 

You wouldn't want to reuse those.

 

p/w was to tight and they will make a great paper weight now..get a new set and check the cylinder walls and make sure they are still round top to bottom.should set p/w no tighter then .0045

 

lol i have a set that looks like that wont use that machine shop again

 

FIND A NEW PLACE! or dont build the motor your self...

 

those look very nice, use them again, they will seal up nice!lol get some new slugs my friend and def make sure those cylinders are still in good shape.

 

How does the walls look? Any scarring?

 

That means a new set of piston :S

 

those are trashed. Anyone up for new paper weights?

 

Flip over and instant ashtray

 

The walls look fine, as i can see, im going to take to the machine shop to make sure etc... only thing I could think of is aebs messed up on the bore size right?

 

I'm guessing that you send them the pistons with the block, if so, yes they did mess up.

 

Damn,

I see that when P/W clearances are off

or heavy detonation/REALLY bad tune.

Have you changed your wideband sensor lately?

 

wrong forum, please move to FI.....

 

PW clearance is too tight. How much whp is this motor making? Also, what do the tops and the chambers look like?

 

The block needs to be bored and honed again. I'll bet that it was detonation....

 

either the PtoWall was too tight or the tune was off. those are junk

 

There was no detonation and my wb sensor is good, not that old, using an fjo. taking the block to the machine shop and ill let you know the final outcome.

 

nOT LIKELY, tOO TIGHT OR LOST LUBE.

 

p2w was fuxored... Detonation would have shown on top by Pitting of the pistons