I'm looking at one of these for my '87. Is this a good turbo for my application? It has a 50mm, 50 trim compressor wheel with a 2.123" inducer and a 3.000" exducer. It has a T04E style compressor cover with a billet aluminum backplate. The turbine wheel is a T31 76 trim with a 2.559" inducer and a 2.228" exducer. The center section uses the upgraded 360-degree thrust bearing, which lasts much longer than the standard 270-degree bearing found in most low priced and/or off s turbochargers. The exhaust housing is a Precision Turbo casting with a T3 inlet , 5-bolt discharge for the downpipe and a 0.48 A/R for quick spooling.
Let me know what you guys think. Thanks!
where are you buying this turbo? and how much do they run? I'm interested also
The .48 SC50 is good for stock-ish motors. Layla has had the ball-bearing SC50R for 18 months with the .63 SIII housing/wheel and even with a heavily modified engine it spools a little on the slow side.
IMO you should probably worry about maxing out a stock T3 before you worry about stepping up to a bigger turbo.
I recently bought a 57 trim, and even with everything I've got done, it's too much for what I have right now. It his full boost around 3500 RPM, but doesn't really start pulling until 4000+ RPM.
Considering that you're working off a stock head, stick with a T3 for now.
I run the same turbo, but in a .63 A/R.
My car is very mild, run a Bobs log header, the SC50, full 3" exhaust, cold air intake, ranger roller, race engineering cam pulley, and 20psi of boost.
I love it.