I was thinking of putting a rear mounted turbo on my 350z and I was wondering, that if you were to put exhaust cutouts before the turbo, would there be a way to turn off the turbo by switching the exhaust . I don’t know how the tuning, oil or anything would work. Or if it’s even possible to run a tune for that. Of if it’s even possible.

 

yep, its possible. But why? Just keep your foot out of it.

 

Isn't that essentially the whole purpose of wastegates, to regulate and control boost? Use a larger than needed wastegate with low 1-2 psi springs, and CO2 with controller to ramp up boost when you want it too.

 

The waste gate is an exhaust cutout. What problem are you trying to solve?

 

I close my cutout to slow down the turbo. Spool more slowly = better traction + earlier gate opening = lower total boost pressure = reduced engine VE = reduced power and torque.

Open cutout, car wants to run off the road with too much torque too quickly, it takes better tires for a open cutout situation

So for me, cutout is just for noise and top speed. If I want to run from a dig I always use closed first, then maybe open once 80mph+ with 600rwhp @ 3000lbs