First test intake manifold (lots a pics)

[TrinaBabe]

They are similair... his is sheetmetal. This is cast which gives much more flexibility in the design, especially on the internal stuff. Ill post up pics of the final version that I made soon depending on if I can get it made or not. Eitherway Ill post them all up shortly.

[arpad]

Awesome, thank you for investing so much time and effort into an area that I and others have considered in need of some serious skillful technical development. Hopefully, we will see some good results! Count me in for a groub buy run if you see some good numbers.

[jp@shearerfab]

Originally Posted by TrinaBabe

Well the status is almost a standstill now. All the parts are made on the pc... my 3d printer cant reasonably make me the prototypes and I cant find anyone local to make them for cheap. I cant afford to spend the $5 grand to make a few test ones and I dont want to try to get it paid for by pre-selling or something strange like that. Im going to talk to a few more people to see what I can do but otherwise it may be down to re-creating the manifolds using sheetmetal work and then actually just cut, bend and weld it all together. I am now getting I tig welder for personal use so I could make a few in my spare time but I will need to redesign the manifolds quite abit and try to get the same flow numbers that I achieved with the cast method. If I need to abondon the cast version completely I will post up a bunch of pics and tests.

I hope you overcome this issue. It will be interesting to see how much of a gain this would be over conventional large single plenum manifolds on various turbo set ups.

[JeffR116]

Any more information on this?

[05graphiteMR]

any closer? i am interested in the results. i am installing my built engine into my mr soon and i still need a manifold, this might be a viable option to the ams one

[arpad]

Okay I was ummm... trying to sleep last night and was thinking about intake manifold designs. If you would use one of those gimmick "vortech generators" to circulate the air in the piping as it enters the intake manifold, would the air flush itself down the runners more efficiently if you designed the runners to exit the manifold in a similar fashion to a cross-section of a turbo?

I know the throttle body would mess things up, but if it would have a huge benefit then we can always switch to individual throttle bodies for the runners

I do realize that the idea is way out there and there are a ridiculous number of variables involved but I guess I'm just wondering if anybody's considered it or if there are any designs out there like it.

Here's an absolutely horrendous picture that I'm going to blame on

[EvoTornado]

Originally Posted by JeffR116

Any more information on this?

+1

By the way, where are you at now, TrinaBabe?

[TrinaBabe]

Well I believe the idea is killed. Everywhere I look it seems it will cost around 12k to start making them. Unless I find a new alternative I am kinda stuck Once I check the last few spots I could I will show all the CAD stuff, 3d models, CFD stuff, etc.... Maybe someone else may be able to find a way

I will probably end up making very similair versions out of sheetmetal however... If nothing else for at least my racecars. Still trying to get the whole tig welding down a little better before I try to make that kinda stuff though

[TrinaBabe]

Oh and the idea to force the air to swirl in an attempt to help force the air into the runners does not work. You dont want the air to twirl until the air makes it into the actually runner. Otherwise you will create a bunch of turbulence inside the plenum slowing the air down and heating it up.

[jp@shearerfab]

Originally Posted by TrinaBabe

Well I believe the idea is killed. Everywhere I look it seems it will cost around 12k to start making them. Unless I find a new alternative I am kinda stuck Once I check the last few spots I could I will show all the CAD stuff, 3d models, CFD stuff, etc.... Maybe someone else may be able to find a way

I will probably end up making very similair versions out of sheetmetal however... If nothing else for at least my racecars. Still trying to get the whole tig welding down a little better before I try to make that kinda stuff though

Well, that is unfortunate.

Great idea-maybe you will be able to at least make a Beta peice for your race car.

[x838nwy]

want to send us the drawing and see what we can quote?

[TrinaBabe]

Originally Posted by x838nwy

want to send us the drawing and see what we can quote?

Sure send me a PM :P

[homemade wrx]

12k for manufacturing....that is rediculous...we make our own carbon manifolds in house, quite easy, doesn't take much time either...
I can't imagine how they got a 12k quote


what material are you trying to make it out of?....just cast aluminum?

[arpad]

Originally Posted by TrinaBabe

Oh and the idea to force the air to swirl in an attempt to help force the air into the runners does not work. You dont want the air to twirl until the air makes it into the actually runner. Otherwise you will create a bunch of turbulence inside the plenum slowing the air down and heating it up.

Interesting, thanks for the reply/info!

[Wheelhaus]

Originally Posted by homemade wrx

12k for manufacturing....that is rediculous...we make our own carbon manifolds in house, quite easy, doesn't take much time either...
I can't imagine how they got a 12k quote

You have the tooling, processes, and materials in place, and you have the ability to fabricate several parts with the intent to sell all of them. This keeps cost nice and low.

It's MUCH more expensive to make a first article (prototype). The tooling and support equipment has to be developed, any special processes have to be proven, and then they have to be tested. Once all this stuff is in place, it costs only a fraction to produce more of them. That first step is a big one. Yeah there are shortcuts to these, but to do it right (and not half-ass it) takes time and money.