Thinking about running a single s475, anyone know what size would be best, im still new to the whole turbo sizing thing and where can i get one in a t3 or t4?

 

Look for the T4 with a .90 or 1.00 housing.

You will need
A lot more than 370s
Studs
more timing.
ETC....

 

I have been thinking about jumping to 5x18's

 

if there was a shake my head smiley i would post it. think about your set-up a bunch before you go doing that. unless it a pull rig only.

 

We have the B turbine diverter valve that will close off one of the scrolls so it will spool faster, then open up when you get spooled. It would be nice to run a 1.0 housing, but spool like 0.5 until you hit 10 psi.

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you will want the 83 or 87 turbine wheel, and probably a smaller compressor like the 71.1

you will want bigger than the 370 injectors too.