JusMX141
Moderator
- 15,147
- 1,287
- Dec 13, 2005
-
Greensburg,
Pennsylvania
Eh, I wouldn't feed from the head with a restrictor using a journal bearing Garrett unless you have no balance shafts and an unported filter housing. Even then I'd still question the restrictor.I'm planning to rebuild soon (already have the new journals and other parts) and then I plan to feed it from the head with a restrictor based on advice from turboglenn. If it doesn't last at least 15000 miles I'm just going to call it quits and replace it with something better.
It's no secret that type of turbo requires more oil than a MHI unit to keep the journal bearings floating, it's just that they're rather easy to over-oil on our cars because of the great variation in oil pressure levels.
Look for one of the older Frank 20G's that use a Garrett compressor wheel mated to a TD06 or 06H turbine. You get MHI reliability with the added flow of what a Garrett compressor can offer.I'm looking for a bolt-on dsm turbo to fit my FP manifold which is capable of 400 AWHP on pump. The number one thing I'm looking for is reliability and durability. This is my DD and I don't want to be rebuilding the turbo ever 2000 miles because it's smoking.
What do you recommend for a bolt-on turbo that can flow 45+ lbs/min and make 400AWHP on pump?? Again, reliability is the number one concern.
Holsets are always an option....their oil pressure requirements are outlined well in the Holset service manuals. I'd feed a HX35 from the filter housing with a .0625" (1/16") or .078" (5/64") restrictor on a car that still has balance shafts or has no balance shafts and a ported relief valve.
If you have deep pockets, a ball-bearing 50-trim or one of the SBR GT turbos would do the trick. A ball bearing turbo is simple and reliable....feed the oil from the head with a .030" restrictor no matter what ball bearing cartridge you're using.

o

