My Turbo Truck
#21
I did consider other turbo options, but it came down to price in the end and finding a name brand 76mm+ turbo wasn't cheap. The turbonetics was around $800 shipped and a comparable Precision units would run $1000+
The turbo outlet is 3" so a 3" exhaust should be all it needs. This specific turbo uses a very small 68mm turbine (2.67") Which makes for super quick spool
When I ordered the kit I was under the impression the wastegate would be in the crossover pre turbo and dumped to the atmosphere. However, When the kit arrived the gate was to be manifold mounted and recirculated back into the downpipe. I didn't pay extra to have this done.
I'm sure with a larger turbine wheel a larger exhaust would be beneficial. A lot of flow can also be re-routed by simply venting the wastegate to the atmosphere
The turbo outlet is 3" so a 3" exhaust should be all it needs. This specific turbo uses a very small 68mm turbine (2.67") Which makes for super quick spool
When I ordered the kit I was under the impression the wastegate would be in the crossover pre turbo and dumped to the atmosphere. However, When the kit arrived the gate was to be manifold mounted and recirculated back into the downpipe. I didn't pay extra to have this done.
I'm sure with a larger turbine wheel a larger exhaust would be beneficial. A lot of flow can also be re-routed by simply venting the wastegate to the atmosphere
#23
The 3" full exhaust will choke max out power down.
But if your not going for all out its ok.
Simple to add a cut out or increase to a 3.5 or 4.0" full exhaust if wanting more power.
My 4" exhaust has a nice rumble to it. But to quiet it down you can a resonator pipe to it. I hear that changes the tone nicely.
#24
Thread
Thread Starter
Forum
Replies
Last Post
5.3lSilverado
GM Engine & Exhaust Performance
25
Aug 29, 2016 12:48 AM







