shelbyplaya
09-16-2008, 10:25 PM
Here's what happend.
I was at the drags on sunday and at about mid track the car started the burn blue real bad :( It happend during HIGH revs (about 6700rpm in a 2.5l). Only changes to the motor where: 57 trim T3/T4 with .63 stage 2 turbine, Tial 38mm extrenal WG, 3" open DP, 7 psi and cam 're-alingment', timing was at 6*, Mr. Gasket crank case e-vac kit dumped into the exhaust, and it's running perfect A/F's.
I know the oil is'nt being burnt in the exhaust due to the amount of raw oil dripping out of the DP. So I KNOW it's coming out of the PCV but why?
My 4 theroys are:
1) Rings are shot (not even 10 passes on a 384' track)
2) To much oil pressure/volume and the -10 and -8 oil returns cant keep up
3) To much vacume from the e-vac kit and it's sucking oil out of the VC
OR
4) a combo of number 2 and 3.
I let the car idle for about 15 minets today with the PCV dissconnected and I didnt even notice one drop of oil in the pcv ports on the VC, not even when i reved the motor up.
I have my oil returns in the oil pan about 2.25" or so below the the top of the pan, maybe this could be causing oil to back up in the lines as well????
Any help would be great guys. I would like to get this issue figured out so I can get the rest of my exhaust hooked up and get the car back on the dyno for some tuning.
I was at the drags on sunday and at about mid track the car started the burn blue real bad :( It happend during HIGH revs (about 6700rpm in a 2.5l). Only changes to the motor where: 57 trim T3/T4 with .63 stage 2 turbine, Tial 38mm extrenal WG, 3" open DP, 7 psi and cam 're-alingment', timing was at 6*, Mr. Gasket crank case e-vac kit dumped into the exhaust, and it's running perfect A/F's.
I know the oil is'nt being burnt in the exhaust due to the amount of raw oil dripping out of the DP. So I KNOW it's coming out of the PCV but why?
My 4 theroys are:
1) Rings are shot (not even 10 passes on a 384' track)
2) To much oil pressure/volume and the -10 and -8 oil returns cant keep up
3) To much vacume from the e-vac kit and it's sucking oil out of the VC
OR
4) a combo of number 2 and 3.
I let the car idle for about 15 minets today with the PCV dissconnected and I didnt even notice one drop of oil in the pcv ports on the VC, not even when i reved the motor up.
I have my oil returns in the oil pan about 2.25" or so below the the top of the pan, maybe this could be causing oil to back up in the lines as well????
Any help would be great guys. I would like to get this issue figured out so I can get the rest of my exhaust hooked up and get the car back on the dyno for some tuning.