Hey guys, I was wondering if anyone has any experience with an oil restrictor to reduce the pressure. I'm not sure if our cars produce enough or the turbo would see enough oil pressure to blow a seal. Any thoughts? Thanks!

By the way, here is a link to what I'm talking about.
Oil line restrictor

 

I have no info on this.. My question is why would you want to reduce the oil to the turbo?

Maybe someone can help us both out

 

The idea is that you don't want to blow the seals on the turbo because of too much pressure.

In my turbo, the t4/t04e turbonetics one, it has a built in oil press. restrictor.

 

The correct feed line is -4 and the correct return line is -10 for the general area that 90% of our size turbos would use. Routing the return line to the oil pan so that it flows in there with no restrictions is the key to not loading up the turbo with oil. It won't hurt anything but it'll leak or smoke.
~Scott

 

Check out the stickies on the SR forums! They have a lot of useful info about restrictors. Also, the VE motor does around 15psi at idle and 95psi at WOT! 95psi is higher than most motors. From my research, the VQ doesn't have that much pressure.

 

Thanks, I'll check that out! I was actually looking at a thread you posted in awhile back about the oil pressure when I started wondering about this.

 

Yeah. The VE oil pressure is unsually high when compared to other motors I've looked into. I will definitely consider an oil restrictor when I do turbo this year.

 

yeah I was wondering that too. I have been smoking since the day i put my turbo on. This is the 3rd turbo and it smokes just a little. Can someone explain more about this stuff?

 

After doing some research, it seems like a restrictor might not be necessary as long as a -3AN feed line is used. At least that was the general idea I got from the SR20 forums.



If there is too much oil pressure in the turbo, the oil will push by the seals causing it to leak/smoke. It doesn't hurt the turbo, since the seals are made to do this as a precautionary measure. When the oil pressure returns to a proper level, the seals will seal up again.