no

the gains would not warrant the cost.


now for an NA build it may be worth it

 

My engine builder firmly believes that the OEM intake manifold is a bottle neck in the system. He believes that the plenum chamber volume should be twice that of the capacity of the engine. His factory builds Clubmans for the aus market, including F20C powered ones, he used to race and maintain F3000 cars and I built my engine at his premises under his supervision. I believe he knows what he is talking about.

 

if its less than 1K i want one from magnus!!!!

 

What is the advantage of using a larger volume?

The only advantage of this I can figure is to lower the manifold velocity so flow is evened over all runners. With forced induction I am not sure this is a advantageous.

My guess is the best possible thing that can be done with regards to forced induction is to decrease the runner length and increase the width. Then by adding a large radius venchuri and figuring out the best method of distributing you would have something.

Am I getting warm?

 

There are quite a few factors that are involved, so its not super simple to explain. There is a ton of engineering that goes into a well designed manifold. A simple way to look at it is the larger plenum allows for a larger mass of air to build up before the valve opens, so when the valve opens you have better cylinder fill.

 

Endyn makes a manifold scroll to bottom of the page on the link

http://www.theoldone.com/components/cylind...S2000/s2000.htm

 

What about the Full-Race Intake manifolds??

$1200 ain't cheap though.

 

Full Race sells the Hypertune manifold. Seems to be a nice manifold, but Im sure the Magnus will perform better and be less expensive.

 

is there an update from Magnus as to the release date?

 

Ill give them a call tomorrow and see what they say. Should be very soon now.