Carbon Fiber intake manifold.

[Danny Cawsey]

Haven't been on here in a while,
I'm planning on building a large port carbon intake manifold for the s3. Obviously I want maximum flow. Does anyone have any experience on testing different shapes and volumes.

 

[<tuffty/>]

Follow the sem and you won't go wrong

<tuffty/>

 

[Danny Cawsey]

Follow the sem and you won't go wrong

<tuffty/>

Yes been thinking about copying the sem design. Any ideas of the volume? As I need to design the mould for the cnc machine.

 

[<tuffty/>]

Says on their website... 2.75ltrs

Rule of thumb plenum is 1.5 x engine capacity for turbo engines

<tuffty/>

 

[Prawn]

1.4

 

[antwan64og]

Depends what you want from the car, a dual plenum like in the WRC Skoda below distributes the air more evenly but limits top end flow.

 

[craigt1985]

I love the fact that it retains the OEM oil filler car

 

[Scullies]

There's a thread on Vortex about carbon fiber intake -
http://forums.vwvortex.com/showthread.php?4490691-Carbon-fiber-plenum

 

[badger5]

Depends what you want from the car, a dual plenum like in the WRC Skoda below distributes the air more evenly but limits top end flow.

Remembering these are restrictor cars so not overly relevant in terms of us non restricted higher power chaps

 

[antwan64og]

Remembering these are restrictor cars so not overly relevant in terms of us non restricted higher power chaps

Yup, the older 34mm restrictor so theoretically limiting horsepower to about 330hp in ideal conditions, the WRC-esque inlet should bump low-mid torque sacrificing topend (not that it matters in WRC as the restrictor prevents higher air flows).

The SEM Manifold design looks pretty dam good

 

[badger5]

Yup, the older 34mm restrictor so theoretically limiting horsepower to about 330hp in ideal conditions, the WRC-esque inlet should bump low-mid torque sacrificing topend (not that it matters in WRC as the restrictor prevents higher air flows).

The SEM Manifold design looks pretty dam good

wrc have monstrous torque tho.. epic..

 

[craigt1985]

Ridiculous torque and all the rev band. Been taken out in both Richard Burn's last and one of Petter Solberg's WRC Imprezas on some of the Somerset Stages courses (gravel) and my god they're rapid!