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T3/T4 BIG SHAFT turbo
|This is a very popular big shaft T3/T4 turbo.
It incorporates the flange and exhaust side turbine of a T3, and the
compressor side turbine of a T4. This setup covers target horsepower
applications of 300 to 450HP. It's also rebuildable when the time comes.
You can't go wrong with Turbonetics. They have been the business for many
years and offer a huge variety of turbos for almost any kind of application
you can think of. Outfront is a master distributor of their products.
This turbo requires an external waste gate. Turbo as shown, $870.
|Most turbos are setup to be water cooled to
enhance turbo life. Water cooling keeps the oil from boiling after
you turn off the engine off which can create a crusty oil residue. Boiling oil creates a sludge that is hard on
bearing mating surfaces, not to mention it can clog the oil return line
which can hinder flow. Using synthetic oils can reduce sludge buildup, but water
cooling is the secret to enhancing turbo bearing life.
For oil return lines, Outfront recommends and only uses only #10 oil
return lines to the oil pan.
A water source to supply water to the turbo can be tapped into at the
water crossover. This is the hottest water that comes from the engine,
but cooler than the turbo. The water return line attaches at the
water pump/thermostat housing.