what are u guys running for oil return when it comes to the 2.4 and being turbo... looking for different options.
running straight to the oil pan isnt an option i want to take due to factors that lead to blowing turbo seals.
gimme some options guys.
BeardLife /
Club Awesome Reject Blog
On the dip stick the full line is at the same level where the bottom of the block meets the top of the oil pan, meaning, when the motor is not running the oil level should be dead even with the top of the pan / bottom of the engine block.
There seems to be a staggering amount of turbos blowing seals on 2.4's where the oil return is plum directly to the oil pan. Every single turbo 2.4 guy here in Mi. that i know (probably 10 of them) that is running the return to the oil pan have blown the seals on their turbo at least once, some twice.
Another factor i think is contributing is the lack of a functioning PCV system on most 2.4 turbo systems.
All of this just raises a suspicion, maybe its just a coincidence, i don't have a sure answer.
Shifted, did you already blow the seals on a turbo as well?
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
arent there 2 good oil taps and 2 water taps? are both taps for each trying to flow out? i see them from my 2.3 why not hook the return line to the cam gear housing?
ok then. throw some things at me that would help reduce or eliminate blowing turbo seals. i already have the PCV situation under control.
what else could help?
BeardLife /
Club Awesome Reject Blog
Shifted wrote:No, didn't blow my seals.
I think the cause is more cold oil pressure on the feed side rather than the return. Cold pressures are upwards of 60psi.
Or close to 90 psi on the HO oil pump conversion when cold......
i went straight into my oil pan with a 3/4" fitting , and kept it as high as i oculd
never had any problems with seals
ive seen factroy turbo cars with the drain in the bottom
Shifted wrote:No, didn't blow my seals.
I think the cause is more cold oil pressure on the feed side rather than the return. Cold pressures are upwards of 60psi.
I have about 80 psi of oil pressure everyday when i start my car and have never blown seals in my turbo. I use a -3 feed line with no restrictor.
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
I use a -3 an pressure hose with no restrictor and a 5/8" return and have never had a problem with mine.
I think most of the problem is the little PCV hole in the head. If people turbo their car with a 2.4 intake mani, your basically pushing 8-whatever psi into the bottom end of your motor, which would want to push oil back up the drain line, which would blow their seal. Easiest effective way is either plug the hole, not advisable but would be better than pressurizing it, or 2.3 manifold swap, drill and tap manifold, screw in a barb fitting, catch can to catch oil, then run it to the intake "sucking" side of the turbo. I think as long as you keep it up high enough, and use larger than 1/2 inch fitting and lines, it will be fine. Also, look where you tap into the pan, because some places in the pan, the balance shaft assembly is close to the wall of the pan, and if you thread in a fitting, it will either block the fitting or get really close to blocking it from draining, so when you drill and tap it off of the car, put in on the block, look through the hole and check to make sure nothing is blocking it.
