I am running a VG30 non-roller bearing turbo on my 3TGTE using an adapter on the stock mainfold. The turbo died earlier this year so I had the stock ceramic exhaust wheel replaced with a brand new 50 trim T3 VL turbo item and the covers modified to accept locally available oversize bearings. Import turbos are hard to get original parts for in australia. If you are comsidering running a ceramic turbo I do not at all recommend raising the boost above the factory setting as this will more than likely result in premature turbo failure. With the 50 trim steel exhaust wheel and new seals, bearings and a high speed balance the turbo is capable of making 30PSI (all I need is forgies). Once reinstalled on the car this resulted in 100NM more torque and 30 more hp at the wheels @ 12PSI. Be careful how you grind the cast manifold as cracking can occurs as a result. My manifold had been crudely ground and cracks had began to form, an hour was spent before re-installation with a die grinder to extensively port it to suit the turbo. My car now runs 15ºC cooler than before the turbo rebuild, whether this has anything to do with the improved porting I do not know.
Fri, 05 July 2002 10:34
