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-   -   why arent intake manifolds designed like exhaust headers? (https://www.miataturbo.net/general-miata-chat-9/why-arent-intake-manifolds-designed-like-exhaust-headers-59508/)

Faeflora 08-02-2011 09:36 PM

Arrgh. This is what I am asking about:

Throttle body goes into Bigass sausage shaped plenum. At the other end of the plenum is a 1:4 splitter which goes to each runner.


This would not eliminate the plenum. It would put the splitter at the END of the plenum.

18psi 08-02-2011 10:19 PM

and how do you plan to stuff this dildo into the engine bay?

Faeflora 08-02-2011 10:30 PM

1 Attachment(s)
No, not a dildo. I envision it more like this squid here:

https://www.miataturbo.net/attachmen...ine=1312338612

There's lots of room on the coldside. If people can stuff turbo and turbo manifold on hotside why not on coldside? Also there's room in front of engine. Fuck it. There's room in the damn cowl too. And the nose.

triple88a 08-02-2011 11:07 PM

1 Attachment(s)
While u're at it.

https://www.miataturbo.net/attachmen...ine=1312340836

JasonC SBB 08-03-2011 12:36 AM

LOL how did you find that pic?

Savington 08-03-2011 02:40 AM


Originally Posted by MazDilla (Post 756057)
Oooooooh! This *might* be a retarded idea, but I like the way this man thinks! Please school me.

Why not have an equal length runner/collector type intake manifold and put the throttle body way upstream to use the intake piping and/or intercooler as the plenum?

More throttled volume = shittier throttle response. This is why hotside roots blowers suck ass.

matthewdesigns 08-03-2011 11:14 AM


Originally Posted by Faeflora (Post 756075)
Arrgh. This is what I am asking about:

Throttle body goes into Bigass sausage shaped plenum. At the other end of the plenum is a 1:4 splitter which goes to each runner.


This would not eliminate the plenum. It would put the splitter at the END of the plenum.

While I'm still not sure if this is a troll thread, I'll toss this out there. One of the pages I linked to earlier describes the best intake mani design as incorporating an "air duct [to] feed the center of the plenum", so that the plenum is evenly pressurized ahead of each of the runners. Based on your squid, it seems that you would accomplish this center feed in probably an ideal way, such that the incoming air does not have to make a turn to get to any runners, the full volume of the plenum would be feeding all the runners, and the plenum would be pressurized evenly ahead of all the runners as well.

y8s 08-03-2011 11:39 AM

fae, why not just four runners and four throttle bodies and no plenum?

Faeflora 08-03-2011 11:40 AM

Yeah, that's what I thought. Who agrees? The future of the intake is squid intake. If I put an intake on my car it will be squid style. Or at least curved sausage squid style.

Faeflora 08-03-2011 11:42 AM


Originally Posted by y8s (Post 756255)
fae, why not just four runners and four throttle bodies and no plenum?

Why not? Plenum needed for boosts? I don't know? Costs?


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