Re: intake manifold design?
 

Where do you live? Glad that ---- doesn't go down in the US.

Re: intake manifold design?
 

ahaha i'm in in canada and everything is closed

well for the thought of keeping things together I plan on asking the company "GE polymer" about that and i'm sure they will have a sudgestion, I'm working on a new model for you guys that includes velocity stacks, The way I'm changing it is going to make for more machining in one sense but less in another, I'll show you when i'm done I should be done the drawing in 15-20 minutes max ahaha I'll post it up when im done

Re: intake manifold design?
 

New design! pros, cons? I know the stacks look lame but i just threw the drawing together, I will try and make a more detailed one later, but this should give you an idea

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Re: intake manifold design?
 

You nearly never see it done on i4's, but angling the throttle body stand-off by 30-35* entering the plenum chamber will give a more even distribution of flow across the plenum.

Re: intake manifold design?
 

so angling the TB towards teh bacl of teh TB or angling it towards teh rummers?

Re: intake manifold design?
 

Back of plenum I believe, I've seen it done on a few manifolds.

I'm in Canada as well.

I'm making mine DIY style, most machine shops can do it, but if you're one-offing parts it's cheaper to go buy a premade intake.

Re: intake manifold design?
 

AEBS Typhoon, best cheap IM ever. Better than vicky x or the like in 300 range.

Re: intake manifold design?
 

Do they make a D-series one though? I havn't found one.

Re: intake manifold design?
 

Yeah all this will cost me is materials, I get all my machining for free, its my best friend's fathers shop and he loves when i even come in and hang out because I am really interested in custom fabbing stuff, the scrap pile is fair game for anything i want to work with and he just lets me and my buddy play with the welders and ----, its pretty awesome!! I'll go in to the shop on tuesday and talk teh design over with some of teh guys there and hopefully get a good game plan set

Re: intake manifold design?
 

Velocity stacks will probably not improve performance on a forced incduction engine. They are mainly used in NA applications, because the air in the center of the plenum moves faster than the air near the walls of the plenum, and moving the runner inlet toward the center of the plenum will increase velocity in the runners. This is fine when the air is being drawn into the engine. In a forced induction application they are just going to be in the way, causing turbulence and most likely hurting overall power. A nice flat bottom with radiused inlets would work nicely.