Dual Intake Manifold [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Dual Intake Manifold


timeman
05-21-2007, 06:22 PM
Trippin, how hard would be to make an intake manifold that would allow for 2 turbos to be ran for each cylinder head bank?
I can see the Duramax making uoward of at least 1800 hp with this configuration and I think it would provide more torque also. Again I have to say this, the Gale Banks group has the right ideas concerning the Duramax.:)

Diesel Tech
05-22-2007, 09:44 PM
One thing you need to remember is that when you run one turbo per bank you also cut the energy to drive the turbo in half. So you are truly working with a 4 cylinder engine at that point. Trying to get 4 cylinders to drive a turbo of enough size/volume of air to make 900 Hp is not going to happen in a duramax application. You will need to do something with NOS to event get you close and that's what Bank's is now doing. Compound Twins work much better because you compound the boost and use the whole 8 cylinder to give you the necessary energy to drive the large turbo's. Making a divide intake is simple if you want to do it. Just remove the connection in the center of the motor and plumb each stock manifold to each turbo. While it's not as pretty as the Banks manifold it does the same thing.

TheBac
05-22-2007, 10:21 PM
Since we're on the subject of intake manifolds, has anyone modified the stockers (or something close to stock size) to run separate cylinder runners? Is it even possible? We've talked about it at Merchant's before, but that was a long time ago.

Diesel Tech
05-22-2007, 11:22 PM
With a turbo in the stock location there is little to no room for it. Move the turbo out and there is plenty of room and it works well too :D

timeman
05-24-2007, 01:49 AM
If you increase RPMS, which is what some are trying to do, it might work.

Thanks Diesel Tech for the info:)

Trippin
05-24-2007, 02:55 AM
Trippin, how hard would be to make an intake manifold that would allow for 2 turbos to be ran for each cylinder head bank?
I can see the Duramax making uoward of at least 1800 hp with this configuration and I think it would provide more torque also. Again I have to say this, the Gale Banks group has the right ideas concerning the Duramax.:)

I like what Banks is doing, by lengthening the runners they are bringing the torque in sooner, this allows an increase in the size of the cross sectional area to boost mid and high end power.

Not a terribly difficult casting to make. Just need the sales volume to support the foundry tooling.

A good welder and sheet metal guy could also fab one up, in fact I have a customer that is currently building one to mate with our cylinder heads for a Duramax transplant project he is working on.

Dan@PPE
05-24-2007, 03:01 AM
in fact I have a customer that is currently building one to mate with our cylinder heads for a Duramax transplant project he is working on.


;)

timeman
05-24-2007, 06:48 AM
Xcellent!
Thanks Trippin:)