i really wanted a twin setup, was thinking twin s360's iirc t4's with quick spool valves on both. the big single just seems easier. i don't really want to move the wire harness, the battery and what not. the wifey is the one that got me on twins cause thats what she wanted. more so because it would look bad *** than anything.

 

Twin Turbo project - Page 4

 

I'm doing twin 61mm With 63 exhaust housing on t3 with 3" down pipes. Here is a link to my set-up. 67 chevy build - PerformanceTrucks.net Forums

 

Another thing that I have thought of that kinda puts twins over single is tuning. With twins you can run your stock o2's with true stft and ltft. Where as on the single the right bank gets fed both sides of the exhaust and can't truely adjust as it needs to. Granted mine afr's are usually right where I want them but the winter time things are different from summer. Iat sensor or not the air is different not just colder.

 

Not if you Y the logs or manifolds together.
Then you have a true left/right side.

 

You know, I actually never thought of that. From what I'm seeing on tech the true twin scroll connections are spooling faster too. Even though the manifolds are truck manifolds.

 

There's other ways as well.

 

How's that?

 

When one side of the engine feeds into the other side, there are no other ways to have a true left and right side.
HOWEVER, we've installed many of your kits Trick, in the past, and when the o2's are properly placed they satisfy the PCM.

One in the driver's side stock location and the passenger in the downpipe.

PCM doesn't really know the difference.

Just comes in handy having and left and right side when determining which bank is lean.

 

Theres always a way.
It just costs more.
Yea for tuning.
The pcm can tell when an adjustment is made to one bank it will notice it. Even when that adjustment is made to pass bank.