I like that you are making a T6 manifold, but I have my doubts if keeping it split in the manifold will make any difference at all. It may make tuning easier, but I and many others never had a problem with it the way it was with yours and Kyles kits.

I know the argument for a divided manifold, but I just dont feel a big V8 cares, especially since the lengths from one side to the other are so different.

 

The bigger volume inside the manifold is for the larger inch engines.
We stretched the round hole to an oval.
By roughly 3/4". Then take away the thickness of the divider. Which isn't much.
You can visualize the increase.
You are correct my log design has worked for almost 10years now. Wow it's been a good time.
Live bank to bank will be cleaner with this manifold.
That's an added plus.
Going to a T6 will help final power potential.
Going with our T6 ex housing will help fitment.
So it's a win win. Plus I believe in the truck market and its people.
The only thing holding us back is a little coin and that fact these are 2+ ton bricks we are pushing through the air. lol just happens we out run a lot of cars in the process.
----
Tuning is a shot in the dark in my opinion for most.
Some can some can not.
Some see a problem where none exist while others don't see the problem when they should.
We have been looking at bringing in a tuner in house but with no luck finding the right person to fit.

 

Correct driver side is keep separate.
and
NO, no need to increase volume as runners come in. then to choke back down at the turbos inlet. Its only a few inches away.

It will make the T6 builds easier. We have a new housing design to help fitment also.

We are still out some time. Tooling is still getting into the line up for machining.
Cost it will be a little more then the T4 model but not huge. Final price still open.

thanks

 

You guys have built/fabricated very effective manifolds. Im sure this one wont be an exception.

 

Rick you think this will work with your new manifold. Have to keep them cool and fast.

 

Turbo engines are not as sensitive to different runner lengths as in a N/A engine.

On a true alternate twin scrolls like in a 4 cylinder for example, there is less dilution of the intake charge and you can add more ignition timing than in a similar engine with a single scroll system, therefore producing more torque and HP.
Intake charge dilution is reduced because the actual exhaust pulse has to go through all the manifold entering the turbo housing and then trying to return by the other housing scroll back to the exhaust port that is in overlap.... that way it is easier for the gas to exit the turbo than going back. I am sure you know this but maybe other forum members dont.

As far as i know our truck´s engine fire order do not alternate from one bank to the other. So in this case it is not a true alternate system. I am not really sure how this affects the intake charge dilution and the timing you can use, maybe it works fine for some of the fire events that alternate banks, but not for the ones that occurs on the same bank consecutively so the dilution is not equal for all cylinders, thus the final timing you can add will be as much as the most diluted cylinder will handle without knock. This can be my best guess.


One benefit for sure is the true separate banks so the O2 sensor readings are not screwed by the other bank exhaust, so close loop is happy with that.

 

I agree with you on the 4 cylinder engine, but feel the effect is much less on a V8. The LS firing order is 1-8-7-2-6-5-4-3, so it is alternating sides except for the 2-6, but even then they arent consecutive cylinders. Essentially, doubling up the number of pulses greatly reduces reversion before the turbine wheel. Just my opinion though.

 

Wow y'all took this from cool T6 to techy.
Too techy for me. Lol.
The advantages or dis-advantages are all secondary
And can easily be off set with a turn of the ****.

Lets face it no one would buy a perfect set up,
Couldn't afford and not practical.

 

Yea thats what im saying, turbo v8 dont care

 

Gonna make it super easy for peeps to run the box stock Borg turbos and make BIG POWA!