Purchased a CB Turbo "What Next?"

[JThiessen]

What size of motor do you have in that? IMHO, going to a 3" exhaust for anything other than a diesel or a big block is actually going to decrease your backpressure enough that you will loose torque.

Best budget bang for the buck is a programmer if there is one made for your vehicle.

[lincpimp]

A 2.5" exhaust will be plenty...

[kulangflow]

Originally Posted by JThiessen

IMHO, going to a 3" exhaust for anything other than a diesel or a big block is actually going to decrease your backpressure enough that you will loose torque

Unless you have a turbo, right? I've heard arguments on both sides, but the majority leaned toward not needing the backpressure as much if you had a turbo. Not positive myself though.

[squeeforever]

Originally Posted by kulangflow

Unless you have a turbo, right? I've heard arguments on both sides, but the majority leaned toward not needing the backpressure as much if you had a turbo. Not positive myself though.

Its not exactly backpressure you want but more velocity. More velocity = faster spooling turbo.

Originally Posted by cheesecake

if its turbo 3 inch will be what you want the turbo actually acts as a muffler and creates a bit of back pressure

Not exactly. Exhaust size if turbo would depend on the size of the turbo. Its true, a turbo does kinda act as a muffler and create back pressure, but you want velocity. You won't get velocity with a huge pipe and small turbo, you'll just get turbulence and a slow spooling turbo. Of course most of this is affected by the placement of the turbo. Chances are you wouldn't even be able to change anything before the dump pipe so it doesn't matter all that much as if it was something like a STS rear mount turbo. Exhaust is a tricky thing with the turbo at the back (as me how I know ).