had some serious blow by coming from the lil breather cone on the valve cover and the oil cap....when i broke the motor down....this is what i find on 2 pistons....

 

Whats the spec of the engine ? Who tuned it ? What were your afr's ? Were you getting and det/knock ? Which cylinder's were these piston's removed from ?

We need to know more ! Your ringlanding's have failed thats the problem. The next step is to work out why.

 

it was a stock gsr turbo...im not sure what the afr's were....it was cylinders 1 and 4....i was getting it street tuned...did a 4th gear pull, pulled over to hit the store....noticed smoke coming from under the hood....popped the hood and saw smoke coming from the little breather cone on the vc...did a compression check....1 and 4 was around 90 and the other 2 was around 280 or something...im not sure....

 

There's your problem...

 

lol Yup Thats what Ide bet my money on. Didn't you have a wideband or somekind of gague

 

the tuner had all that **** hooked up on his end of the car