I have a problem that I am hoping you guys can help me with. A few months back I installed a DRAG III kit on my car and a few other items. I took the car to the track and dyno and was not happy with it. Dropped the car off at a shop to look at it, thinking my tranny was bad. The mechanic stated that I had really two issues, one is that the exhaust side of the turbo has a wobble(this is now fixed), he also said that the oil return fitting that is on the actual turbo is too large. I don't have the oil pressure in the engine that I need. Have any of you modified the fitting on your turbo's to get a slower return so the oil stays in the turbo and motor a little longer. Also, how many of you use your car as a daily driver. The mechanic said that for drag strip purposes only, this is fine, but if the car is driven on the street,
the oil pressure isn't staying high enough and I am depriving my pistons since they are the last in line for oil. I have already changed the oil line that came with the kit because it was junk. all your help and thought are greatly appreciated.

 

What motor is your Drag kit on?

 

b18b is the engine that he has! with an auto tranny

 

yeah, it is on the B18B.

 

As far as I know there is pretty much no such thing as too large of an oil return line.

 

you need the largest oil return line that actually fit -12 -10 -8 are perfect choices for return lines.

Theres is a issue with feed lines though -3 -4 is what most people use. i prefer the -3 with larger turbos. just my preference. -4 with what most kits include.