Dyno wounded!
#1
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We were making a few WOT runs 2000 to 6500 rpm.
I have catch can PVC as well as breather in my Oil Fill,
I've always had a slight mist from the breather during hi load/rpm conditions.
Now I have lots of smoke & some oil coming out of the breather during hi load/rpm runs.
When the car idles there is now smoke & a pulse if you hold your hand over the Oil Fill.
No knocks or rattles, Oil Pressure is good, it sound as though there is a slight miss. Does not drive normal either with major smoke & oil coming from the breather.
The motor has 10 K miles, extremely well maintained & the only abuse is really on the dyno. The modifications were done maybe 2 K miles ago. The motor has run perfectly until this.
I tune myself & have always been quite fussy with AFR & KR. I target 12.6 AFR, at times we have had some knock but I have never turned off or desensitized the KR sensor's
So please do not be kind, just tell me what you think may have happened.
I do know their is problem's with some 01 LS1's & oil consumption, I think this is beyond that though.
I have catch can PVC as well as breather in my Oil Fill,
I've always had a slight mist from the breather during hi load/rpm conditions.
Now I have lots of smoke & some oil coming out of the breather during hi load/rpm runs.
When the car idles there is now smoke & a pulse if you hold your hand over the Oil Fill.
No knocks or rattles, Oil Pressure is good, it sound as though there is a slight miss. Does not drive normal either with major smoke & oil coming from the breather.
The motor has 10 K miles, extremely well maintained & the only abuse is really on the dyno. The modifications were done maybe 2 K miles ago. The motor has run perfectly until this.
I tune myself & have always been quite fussy with AFR & KR. I target 12.6 AFR, at times we have had some knock but I have never turned off or desensitized the KR sensor's
So please do not be kind, just tell me what you think may have happened.
I do know their is problem's with some 01 LS1's & oil consumption, I think this is beyond that though.
Last edited by ctd; 07-21-2010 at 07:34 AM.