Engine Problem? Help

[bad_rb20]

hey all i drive a rb20 s13. Anyways keep the story short. i blew my turbo up a while ago.. took it to get rebuilt, and it seems that there wasnt enough oil going into the turbo.. so this means there is something wrong witht he feeding point.

I know it could be a blocked line, however im not sure, and keep thinking it could be something to do with low oil pressure. What would be causing this problem???

Anyways was wondering if anyone else knows anything about this issue, and what soughta cost these problems can bring along.

I know if its too expensive, i will just be throwing in a another rb20 for around 1500..

thanks for your help boys/girls

Nathan

[TTT]

the stock turbo is Ball bearing.

and therefore has a oil restrictor in the line (or on the banjo bolt or something - can't remember)

if the turbo was hiflowed previously and a non ball bearing cartridge was used (very common) and the oil restrictor was not drilled out, then there wouldn't have been enough oil to the turbo.

if it was a stock turbo and stock everything else, it might be a good idea to just go get another stocker turbo and stock oil lines from another engine.

or if someone on here could tell you the size the restrictor should be, you could get new braided turbo oil line from someone like ENZED or PIRTEK who could put the right size restrictor on it.

[bad_rb20]

the stock turbo is Ball bearing.

and therefore has a oil restrictor in the line (or on the banjo bolt or something - can't remember)

if the turbo was hiflowed previously and a non ball bearing cartridge was used (very common) and the oil restrictor was not drilled out, then there wouldn't have been enough oil to the turbo.

if it was a stock turbo and stock everything else, it might be a good idea to just go get another stocker turbo and stock oil lines from another engine.

or if someone on here could tell you the size the restrictor should be, you could get new braided turbo oil line from someone like ENZED or PIRTEK who could put the right size restrictor on it.

hey thanks for the help,

the turbo is a gcg highflow 500hp turbo, im pretty sure its ball bearing, i have a braided turbo oil line, the engine has had no problems except this.. runs so smooth..just starving the turbo.

[bad_rb20]

hmm no more help?

[bad_rb20]

so apart from oil blockage in the oil feed noone has any input? anyone know of anything else it could be?

[cruisinr34]

have you measured the oil volume from the turbo feed?

[bad_rb20]

finally have had the oil amount coming out of the line measured and the mate that did it for me, it's exactly the sameas his rb20, and his is running perfect oil pressure and has been running a ball bearing turbo also.

so what the hell? lol

confused?

it only ran for 3 months punching out tonnes of smoke, dammit have to wait till my mechanic gets back, anyone else have any ideas?

is it possible that higher up in the rev range all the oil is leaving the sump, and this is causing the turbo to run dry?

[nsta]

Is this the same for when the rb26turbos get uprated, a oil restrictor should be put in its place?, if so where should i be looking, as the head is off, and the turbos are easily accessible.