Turbo don't like higher oil pressure!

[PorterzSupra]

A while back I did the oil pump shim mod. I run about 20 PSI warm and about 70 PSI at WOT. This is the second time I have blown out the turbo oil seals in a 5 month period. (T61 turbo) =( Do they make special oil seals for higher pressure applications? Should I just try and regulate the oil feed into the turbo? It might sound crazy but maybe theres some kinda FPR that would work?

 

[MDCmotorsports]

You can not run massive amounts of oil pressure to a turbo like that. Either change to a carbon front seal or make a restrictor going into the turbo.

 

[PorterzSupra]

Any ideas where I can buy/make some kind of restrictor or regulator? Would a fuel pressure regulator work?

 

[spoolint78]

you can buy them
i believe agp or atp sells them, i forgot the name.
15 bucks.
And it screws onto the feed line of the turbo

 

[PorterzSupra]

if anyone can find a link or a name thatd help out alot, thx!

 

[mkIIIman089]

Are you using the correct feed like recommended by the turbo mfg? If not you should start there, because if the turbo has no internal restrictor the line itself is all it has.

Also, make sure that your return is in no way what-so-ever restricted or pressurized, I have seen some be very finiky as to how they are set up even with correctly sized lines.

 

[spoolint78]

http://www.atpturbo.com/Merchant2/m...OD&Product_Code=ATP-OIL-022&Category_Code=OIL

 

[PorterzSupra]

THANKS!

 

[MDCmotorsports]

-4 max oil feed line, -10 to -12 return WITH VACUUM BEING PULLED.

 

[IJ.]

And for newer BB turbo's -4>-3 is fine and you can get away with a much smaller Return (down to -8) as they are restricted in the Oil inlet so don't flow much oil at all.