Screw it: "Sheet Metal" intakes

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Aug 13, 2008 | 12:42 AM

#106

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The intake manifold is what I have been working on. An initial stage is here:

Aug 13, 2008 | 12:43 AM

#107

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I had alot of learning to do so this took me two weeks or so.

Aug 16, 2008 | 05:47 PM

#108

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Here is some more work on the intake flange. The idea is to make it modular so that one could put any length of runner on it.

Aug 16, 2008 | 06:38 PM

#109

Lizard928

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From: Abbotsford B.C.

Brendan, if you are going to make it so that any length of runner could be used why not have an O-ring seal between the outter body and the runner, then have the runner be able to slide up and down, and have an electric solinoid push the upper plenum up and down thus lengthening and shortening the runner length

Aug 16, 2008 | 08:14 PM

#110

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Uh huh. It took me a week to figure out "planes"

Aug 16, 2008 | 08:33 PM

#111

Lizard928

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From: Abbotsford B.C.

oh come on, dont be so pessimistic.

If you use the LH you could have it triggered from the flappy trigger.

Aug 16, 2008 | 08:52 PM

#112

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Quote:

Originally Posted by Lizard931

oh come on, dont be so pessimistic.

If you use the LH you could have it triggered from the flappy trigger.

Aug 16, 2008 | 09:00 PM

#113

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Does anyone think this is too complex for a CNC machine under normal pretenses?:

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Aug 16, 2008 | 09:06 PM

#114

Lizard928

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From: Abbotsford B.C.

I think it may require a tool change for that, would probably be easier to just have the injector boss egged into the inlet. But that would be tricky to program.

Aug 16, 2008 | 09:11 PM

#115

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Quote:

Originally Posted by Lizard931

I think it may require a tool change for that, would probably be easier to just have the injector boss egged into the inlet. But that would be tricky to program.

Can you go into more detail. I want to make sure I design something that is doable by a normal CNC guy. I mean it will be a waste of time for me to design it as it is in my head and then find out its 1k each side. That doesn't make any sense.

You mean I should just make the injector have smaller boss and just stick it on the round area of the inlet? Should I decrease round shapes? I can make that round runner piece square to save tool time...

Aug 16, 2008 | 09:14 PM

#116

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I could do it this way:

BUt the problem is the 928S4 ports go in at about a 20 degree angle from the up and down plane for the face.

Aug 16, 2008 | 09:15 PM

#117

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I think I have to rethink this. Thanks Colin. I think I am designing something beautiful that will never be able to be machined.

Aug 16, 2008 | 09:38 PM

#118

Lizard928

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From: Abbotsford B.C.

actually Brendan any CNC should be able to do that without issues, but what I am saying is that to do a smaller item like that, or that fine of detail it will require a smaller bit, which is more time each piece is spent in the machine.

Aug 16, 2008 | 10:08 PM

#119

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So you are saying all those round bits are okay? Because I just did a squarish one, but it actually seems harder.

Aug 16, 2008 | 10:15 PM

#120

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And I can't really do "square" because of the port entry angle. I mean I can, but it would necessitate me removing my wish to have the injector hole on the flange instead of having to be added to the wall of the separate intake runner. Thats an extra step, and I think that I should put as much in the flange as possible since the cost of CNC is setup and just getting it started, right?