Well I started taking apart my car, and what do I see?????
My #7 and #5 injectors are criss crossed!! I'm not sure how long they have been like that but it could explain the rich condition and the 12 degrees of knock retard I've been getting since I installed the headers....
Can't wait to get her on the road again and try her out

 

im getting some knock too..

at times i had almost 10 degrees of knock!

gotta fix that..

haha

 

Glad you solved your problem Shawn.

Amit, have you been getting KR all along? When did you notice? Can you hear any detonation, or do you think it is false KR? 10 degrees on an LS1 isn't too good. It will be hurting your #'s. 4 or lower is better.

 

hey chris, me and twitchbitch ran some tests on my car.

and i was shocked! cause my car pulls pretty strong and everything feels tight. the knock wasnt constant or anthing..

heres a thread on my car and the readings: http://www.ls1tech.com/forums/showthread.php?t=165572

 

Hey Chris , if you have any ideas I can email you the efilive file.

Amits timing goes from a bit over +30 to - 5.5 degrees at one point. The cooloant temps bother me , they kept going into the red at +101.00 degrees.

On closer inspection of the efilive file I noticed a pattern or rythem to the knock and timing figures resembling a primative language . I ran the figures through my code scanning software and was able to make out the folowing words that repeat in aproximate 30 second intervals. . . " heeeeeeeeelp . . . . i need a lump lump cam and some nitroooouus . . . feed me rice . ... S. . . S. . . not happy "

 

thats a ****ed up log!

What gas are you using? try a tank of Chevron 94 and see what happens. If that doesnt work, you may be ingesting oil into your intake and burning that, and building up carbon deposits. Run a bottle or two of seafoam through the motor and see if that helps. If it does, you will need to setup a PCV catchcan setup to stop the oil from being sucked into the motor thru the PCV valve.

 

Hmmm good point Craig. . . .

Amit , maybe pull your Tbody and check for signs of oil getting through. If it is it will be really black and ****ty in there , way more than normal.

 

I forgot to mention that I am running a catchcan, and every month it catches about 2-4 ounces of oil AFTER the PCV filter....

Hurrah for LS1s!

 

Was the back side of your tb and inside the intake oily ?? When I pulled my crap apart this winter it was dry as a bone as far as I could stick stuff in the intake and swab . I was expecting mass amounts for the problems people have been having with this ? 17000 kms and so far so good I guess. I meen its really clean

Is yours also a 00 model Craig

Edit : Does ChriSS have this problem too ? ?

 

Yours should be dry, since you have an 02 with an LS6 intake. This means you have the improved LS6 PCV system. That being said, some LS6s still have PCV issues, just not many.

Only 00's and older which dont have the LS6 intake suffer from heavy oil burning.

 

Ah I see I didnt know there was a difference.

 

Actually, I get a little bit of oil in the back of the TB and intake manifold. Just started doing it this past year, but it's not much. I've been thinking of doing a catchcan. I added a LS6 intake, but I never did the LS6 PCV set up.

Thats a fair bit of timing that Amit's car is putting out too. Pretty rare to see 30+. Usually 26-27.5 for a stock car - HPP would put it that high though. Or MAF ends.

How many runs has this happened on? And, have you tried on separate tanks of gas? Does every run look like this?

Sorry for highjacking your thread Musky.

 

30 degrees is about normal from what i know..

but what do i know?

 

How do you make a catchcan setup for LT1's??????

 

for a catchcan I am using an air/oil seperator/filter from an air compressor. Got it at home depot. Make sure you get one that can be open and closed manually (as opposed to one that is always draining)

Once you have this, just put it between the PCV valve and the intake manifold using heater or emissions hose. Just make sure you orient the airflow through the catchcan properly as they are usually not reversible.

The catchcan can be located anywhere that is convenient - just make up for this with longer hoses.

as for timing, I get 30 degrees normally too when the IATs are moderate In heavy traffic I see 27-28 since IATs are higher and timing gets pulled.