Custom intake manifold on a n/a CG13DE

[CMF_Chrismo]

The oem intake manifold on a CG13 engine looks extremely restrictive to me!!

Before this car I had a Nissan P11 with the SR20 engine. This angine has a nice formed intake manifold. I had the idea making somthing like a SR20 intake on my CG13.
Somebody showed me the custom intake Cisco has on his engine, and that was exactly like I had in my mind.
I can weld alu so this should not be the problem....

Only thing is this: I think the most intake manifolds are calculated on the specific engine it's made for. If I make one like Cisco did, what will I gain? Or will I have some sizes I seriously have to keep in mind?
I'm thinking to put a 50mm TB on this manifold.

Again, I know this is not done often on a CG13, but in Holland it has NEVER been done....so info in my own country is not to find.

gr Chrismo

 

[CMF_turbo march-rolling shell]

check out some of my threads. theirs' heaps of stuff in their. cisco's one would have made a marginal improvement, but way undersized. as a general rule of thumb, the plenum area should b around double the engine displacement... 2.6-3L atleast. go a non turbo s13 throttle body (60mm) 50mm is to small. get yourself some ga15 injectors aswell.

 

[smidge]

i still got one of the micra ->> sr throttle body adaptors here if it pleases you

/free ad

 

[CMF_Chrismo]

turbo march-rolling shell WROTE:

"check out some of my threads. theirs' heaps of stuff in their. cisco's one would have made a marginal improvement, but way undersized. as a general rule of thumb, the plenum area should b around double the engine displacement... 2.6-3L atleast. go a non turbo s13 throttle body (60mm) 50mm is to small. get yourself some ga15 injectors aswell.

You tell me 50mm is to small? Even If I get cams no more than 256 duration?